WO2023220275A1 - Compositions et méthodes de traitement et de prévention d'une infection par la coccidiose - Google Patents

Compositions et méthodes de traitement et de prévention d'une infection par la coccidiose Download PDF

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Publication number
WO2023220275A1
WO2023220275A1 PCT/US2023/021890 US2023021890W WO2023220275A1 WO 2023220275 A1 WO2023220275 A1 WO 2023220275A1 US 2023021890 W US2023021890 W US 2023021890W WO 2023220275 A1 WO2023220275 A1 WO 2023220275A1
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Prior art keywords
feed additive
poultry
eimeria
additive composition
feed
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PCT/US2023/021890
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English (en)
Inventor
Andrea Marie BINNEBOSE
Gretel GOMEZ-JIMENEZ
Victor Leonard Joseph NSEREKO WANTATE
Kevin Townsend WATTS
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Can Technologies, Inc.
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Publication of WO2023220275A1 publication Critical patent/WO2023220275A1/fr

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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K10/00—Animal feeding-stuffs
    • A23K10/10—Animal feeding-stuffs obtained by microbiological or biochemical processes
    • A23K10/16—Addition of microorganisms or extracts thereof, e.g. single-cell proteins, to feeding-stuff compositions
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K50/00—Feeding-stuffs specially adapted for particular animals
    • A23K50/70—Feeding-stuffs specially adapted for particular animals for birds
    • A23K50/75—Feeding-stuffs specially adapted for particular animals for birds for poultry
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K35/00—Medicinal preparations containing materials or reaction products thereof with undetermined constitution
    • A61K35/66—Microorganisms or materials therefrom
    • A61K35/74—Bacteria
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K35/00—Medicinal preparations containing materials or reaction products thereof with undetermined constitution
    • A61K35/66—Microorganisms or materials therefrom
    • A61K35/74—Bacteria
    • A61K35/741—Probiotics
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K35/00—Medicinal preparations containing materials or reaction products thereof with undetermined constitution
    • A61K35/66—Microorganisms or materials therefrom
    • A61K35/74—Bacteria
    • A61K35/741—Probiotics
    • A61K35/742—Spore-forming bacteria, e.g. Bacillus coagulans, Bacillus subtilis, clostridium or Lactobacillus sporogenes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K35/00—Medicinal preparations containing materials or reaction products thereof with undetermined constitution
    • A61K35/66—Microorganisms or materials therefrom
    • A61K35/74—Bacteria
    • A61K35/741—Probiotics
    • A61K35/744—Lactic acid bacteria, e.g. enterococci, pediococci, lactococci, streptococci or leuconostocs
    • A61K35/747—Lactobacilli, e.g. L. acidophilus or L. brevis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
    • A61K36/06—Fungi, e.g. yeasts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
    • A61K36/06—Fungi, e.g. yeasts
    • A61K36/062—Ascomycota
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
    • A61K36/06—Fungi, e.g. yeasts
    • A61K36/07—Basidiomycota, e.g. Cryptococcus
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/04—Antibacterial agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K35/00—Medicinal preparations containing materials or reaction products thereof with undetermined constitution
    • A61K2035/11—Medicinal preparations comprising living procariotic cells
    • A61K2035/115—Probiotics
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2236/00—Isolation or extraction methods of medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicine
    • A61K2236/10—Preparation or pretreatment of starting material
    • A61K2236/19—Preparation or pretreatment of starting material involving fermentation using yeast, bacteria or both; enzymatic treatment

Definitions

  • Coccidiosis is an acute infection of the intestinal mucosa of domesticated animals that can cause diarrhea, fever, weight loss, lack of appetite, and even death.
  • the infection is caused by various strains of protozoa including those of the genus Eimeria.
  • the protozoa are consumed inadvertently into the digestive tract of an animal as oocysts when foraging.
  • the sporulated oocysts release sporocysts which proceed through the life cycle of the organism and release the initial infective stage of the organism as sporozoites.
  • the sporozoites invade the mucosal membranes of the jejunum, ileum, and caecum, where they reproduce un- sporulate oocytes.
  • An infection with coccidiosis can be present in an animal in a clinical or subclinical level.
  • a clinical coccidiosis infection can present in an animal with clinical symptoms, including but not limited to, bloody feces, decreased weight gain, intestinal lesions, and death.
  • coccidiosis can present in an animal with no visible clinical symptoms, but upon further examination can be observed as intestinal lesions and the presence of the protozoa.
  • Coccidiosis presents a great economical challenge to the worldwide production of poultry species.
  • 2019, the annual cost to the livestock industry worldwide was three billion U.S. dollars.
  • Anticoccidial medications with activity against protozoal populations in poultry have been successful, but more recently the use of such drugs is leading to widespread drug resistance.
  • various regions of the world have strict regulatory requirements against anticoccidials.
  • alternative treatments are needed to control outbreaks of coccidiosis in poultry populations.
  • the present disclosure provides a feed additive composition including a microbial fermentate product, where the microbial fermentate product is present in the feed additive composition in an amount effective to produce an inhibitory effect against Eimeria protozoa in an animal.
  • the Eimeria protozoa can include one or more of Eimeria acervulina, Eimeria brunetti, Eimeria hagani, Eimeria maxima, Eimeria mitis, Eimeria mivati, Eimeria necatrix, Eimeria praecox, or Eimeria tenella.
  • the inhibitory effect can include a direct or indirect inhibition of reproduction or shedding of Eimeria protozoa.
  • the inhibitory effect against Eimeria protozoa can result in one or more beneficial effects for the animal, where the one or more beneficial effects include improved health measures or enhanced performance measures, or a combination thereof.
  • the improved health measures can include reducing one or more of ceca lesion number, ceca lesion severity, liver lesion number, or liver lesion severity.
  • the enhanced performance measures can include an increase in weight, a decrease in feed conversion ratio, an increase in egg production, a decrease in mortality, a decrease in morbidity, or any combination thereof.
  • the Eimeria protozoa produce a clinical coccidiosis infection or a subclinical coccidiosis infection.
  • the microbial fermentate product is a bacterial fermentate or a fungal fermentate. In an aspect, the microbial fermentate product is a postbiotic product.
  • the microbial fermentate product can include a bacterial fermentate or a fungal fermentate of Acetobacter okinawensis, Acetobacter pasteurianus, Arxula adeninivorans, Bacillus altitudinis, Bacillus aryabhattai, Bacillus coagulans, Bacillus halotolerans, Bacillus megaterium, Bacillus pumilis, Bacillus safensis, Bacillus xiamenensis, Candida carpophila, Candida fermentati, Debaryomyces hansenii, Kazachstania martiniae, Lactobacillus plantarum, Lactobacillus rhamnosus, Lactococcus lactis, Mucor indicus, Paenibacillus taichonnesis, Pediococcus acidilactici, Phaffia rhodozyma, Pichia barkeri, Priceomyces
  • the microbial fermentate product can include a bacterial fermentate of Bacillus megaterium, Lactobacillus lactis, Priceomyces melissophilus, Schwanniomyces vanrijiae, Saccharomyces cerevisiae, or Weissella confusa, or any combination thereof.
  • the feed additive compositions herein can include a solid or a liquid.
  • the feed additive compositions herein include a solid composition in the form of granules, flakes, pellets, powders, tablets, capsules, cubes, crumbles, pastes, gels, or any combination thereof.
  • the feed additive compositions herein include a liquid spray, a liquid water additive, a liquid drench, or a liquid water dip for application.
  • the feed additive compositions herein contain an amount of microbial fermentate product effective to produce an inhibitory effect including an inclusion rate falling within a range from 0.01 kg/tonne to 15.0 kg/tonne.
  • the feed additive compositions herein can be a component of a poultry feed product.
  • the feed additive composition or poultry feed product can be formulated for a chicken, or the feed additive or poultry feed product can be formulated for a turkey.
  • the feed additive compositions herein have a shelf life of up to approximately 30 months. In an aspect, the feed additive compositions herein are stable from 18 °C to 45 °C.
  • the present disclosure provides a method for feeding poultry the feed additive compositions described herein.
  • the method can include feeding a chicken or a turkey the feed additive compositions described herein.
  • the present disclosure provides a method for inhibiting reproduction or shedding of Eimeria protozoa in poultry.
  • the method can include administering a feed additive composition including a microbial fermentate product to the poultry'.
  • the microbial fermentate product can be present in the feed additive composition in an amount effective to produce an inhibitory effect against Eimeria protozoa.
  • the Eimeria protozoa can include Eimeria acervulina, Eimeria maxima, or Eimeria tenella.
  • the inhibitory effect can include a direct or indirect inhibition of reproduction or shedding of Eimeria protozoa.
  • the inhibitory effect against Eimeria protozoa can result in one or more beneficial effects for the poultry.
  • the one or more beneficial effects can include improved health measures or enhanced performance measures, or a combination thereof.
  • the improved health measures can include reducing one or more of ceca lesion number, ceca lesion severity, liver lesion number, or liver lesion severity.
  • the enhanced performance measures can include an increase in weight, a decrease in feed conversion ratio, an increase in egg production, a decrease in mortality, a decrease in morbidity, or any combination thereof.
  • the Eimeria protozoa produce a clinical coccidiosis infection or a subclinical coccidiosis infection.
  • producing the inhibitory effect in poultry fed the feed additive composition is observed relative to poultry fed a diet lacking the feed additive composition.
  • the method further can include administering the feed additive composition as a daily feed ration that is fed to the poultry on most days or on all days.
  • the method further can include that the amount of microbial fermentate product effective to inhibit reproduction or shedding of Eimeria protozoa and produce an inhibitory effect in the poultry includes an inclusion rate falling within a range from 0.01 kg/tonne to 15.0 kg/tonne.
  • administering a feed additive composition including a microbial fermentate product includes administering a feed additive composition including a bacterial fermentate or a fungal fermentate of Acetobacter okinawensis, Acetobacter pasteurianus, Arxula adeninivorans, Bacillus altitudinis, Bacillus aryabhattai, Bacillus coagulans, Bacillus halotolerans, Bacillus megaterium, Bacillus pumilis, Bacillus safensis, Bacillus xiamenensis, Candida carpophila, Candida fermentati, Debaryomyces hansenii, Kazachstania martiniae, Lactobacillus plantarum, Lactobacillus rhamnosus, Lactococcus lactis, Mucor indicus, Paenibacillus taichonnesis, Pediococcus acidilactici, Phaffla rhodozyma
  • the present disclosure provides a method for reducing or preventing a Eimeria protozoa infection in poultry, including administering a feed additive composition including a microbial fermentate product to the poultry, where the microbial fermentate product is present in the feed additive composition in an amount effective to produce an inhibitory effect against Eimeria protozoa.
  • the Eimeria protozoa can include Eimeria acervulina, Eimeria maxima, or Eimeria tenella.
  • the Eimeria protozoa produce a clinical coccidiosis infection or a subclinical coccidiosis infection
  • the inhibitory effect can result in one or more beneficial effects for the poultry.
  • the inhibitory effect can include a direct or indirect inhibition of the reproduction or shedding of Eimeria protozoa.
  • the one or more beneficial effects can include improved health measures or enhanced performance measures, or a combination thereof.
  • the improved health measures can include reducing one or more of ceca lesion number, ceca lesion severity, liver lesion number, or liver lesion severity.
  • the enhanced performance measures can include an increase in weight, a decrease in feed conversion ratio, an increase in egg production, a decrease in mortality, a decrease in morbidity, or any combination thereof.
  • the method further can include challenging the poultry with Eimeria protozoa at a concentration of from 1.0 x 10° to 1.0 x 10 10 sporulated oocysts or sporozoites in a daily ration of poultry feed per poultry.
  • the method further can include where the poultry have acquired an infection with Eimeria protozoa in their habitat in an amount effective to cause disease in the poultry.
  • the present disclosure provides a method for enhancing performance measures in poultry.
  • the method can include administering a feed additive composition including a microbial fermentate product to poultry, where the microbial fermentate product is present in the feed additive composition in an amount effective for enhancing performance measures in the poultry.
  • the method includes enhancing performance measures in poultry that are infected with one or more of Eimeria acervulina, Eimeria maxima, or Eimeria tenella.
  • the enhanced performance measures include an increase in weight, a decrease in feed conversion ratio, an increase in egg production, a decrease in mortality, a decrease in morbidity, or any combination thereof.
  • the increase in weight can include an average weight increase of from 0.5% to 30% in a population of poultry fed the feed additive composition as compared to an average weight in a population of poultry fed a diet lacking the feed additive composition.
  • the decrease in feed conversion ratio can include an average decrease of from 0.5% to 10% in the feed conversion ratio of a population of poultry fed the feed additive composition as compared to an average feed conversion ratio in a population of poultry fed a diet lacking the feed additive composition.
  • the increase in egg production can include an average increase of from 0.5% to 25% in the egg production of a population of poultry fed the feed additive composition as compared to a population of poultry fed a diet lacking the feed additive composition.
  • the decrease in mortality can include an average decrease of from 0.5% to 40% in the mortality' of a population of poultry fed the feed additive composition as compared to a population of poultry fed a diet lacking the feed additive composition.
  • the decrease in morbidity can include an average decrease of from 0.5% to 40% in the morbidity of a population of poultry fed the feed additive composition as compared to a population of poultry fed a diet lacking the feed additive composition.
  • feed additive compositions and methods for feeding poultry are included to prevent or reduce coccidiosis infection in poultry, as well as to improve various health measures and to enhance performance measures in the animals.
  • the present disclosure provides feed additive compositions that can include a microbial fermentate product in an amount effective to produce an inhibitory effect against Eimeria protozoa in an animal.
  • the Eimeria protozoa present in the animal(s) can cause an infection that can be a clinical infection or a subclinical infection.
  • the Eimeria protozoa can be naturally acquired in an animal’s habitat in an amount effective to cause disease in the animal, or the Eimeria protozoa can be acquired by challenging an animal in a controlled setting.
  • the present disclosure provides the feed additive compositions in an amount effective to produce an inhibitory effect against Eimeria protozoa by reducing or preventing an infection with Eimeria protozoa through inhibition of reproduction or shedding, or both.
  • the effective amount of feed additive composition in the diet can directly or indirectly inhibit the reproduction or shedding of Eimeria protozoa and can confer one or more beneficial effects to the animal(s).
  • a “beneficial effect” can refer to one or more improved health measures or one or more enhanced performance measures in an animal or group of animals.
  • Various improved health measures can include a reduction in one or more of ceca lesion number, ceca lesion severity, liver lesion number, or liver lesion severity.
  • Various enhanced performance measures can include an increase in weight, a decrease in feed conversion ratio, an increase in egg production, a decrease in mortality, a decrease in morbidity, or any combination thereof.
  • the beneficial effects observed herein can be a direct or indirect result of the inhibition of the reproduction or shedding, or both, of Eimeria protozoa. Both improved health measures and enhanced performance measures are described in more detail elsewhere herein.
  • microbial fermentate product can refer to a composition containing one or more of non-viable microorganism(s), spores produced by fermentation of said microorganism(s) prior to inactivation, and metabolites produced by fermentation of said microorganism(s) pnor to inactivation.
  • a microorganism can be subject to a fermentation process to form a fermentate which, after inactivation, includes non-viable microorganisms, spores, cell fractions, and metabolites (e.g., fatty acids, polysaccharides, phenols, peptides, proteins, vitamins, amino acids, and the like) obtained from the fermentation process.
  • Various spore-forming microorganisms suitable for generating the microbial fermentate products herein can generate spores during fermentation. Spores generated during fermentation can remain a component of the microbial fermentate product, or they can be removed from the microbial fennentate product.
  • Various non-spore forming microorganisms suitable for generating the microbial fermentate products herein do not generate spores, and any fermentates produced by non-spore forming microorganisms can be referred to further herein as a “postbiotic product.”
  • the microbial fermentate product herein can be a bacterial fermentate or a fungal fermentate, where the fungal fermentate further can include a yeast fermentate.
  • microorganisms suitable for generating the microbial fermentate products herein include, but are not limited to, Acetobacter okinawensis, Acetobacter pasteur ianus, Arxula adeninivorans, Bacillus altitudinis, Bacillus aryabhattai, Bacillus coagulans, Bacillus halotolerans, Bacillus megaterium, Bacillus pumilis, Bacillus safensis, Bacillus xiamenensis, Candida carpophila, Candida fermentati, Debaryomyces hansenii, Kazachstania martiniae, Lactobacillus plantarum, Lactobacillus rhamnosus, Lactococcus lactis, Mucor indicus, Paenibacillus taichonnesis, Pediococcus acidilactici, Phaffla rhodozyma, Pichia barkeri, Priceomyces mel
  • the feed additive compositions herein can include a microbial fermentate product, or they can include a microbial fermentate product plus other components as described below.
  • the feed additive compositions can include a microbial fermentate product in the feed additive composition in an amount effective to produce an inhibitory effect against Eimeria protozoa in poultry.
  • the inhibitory effect against Eimeria protozoa can result in one or more beneficial effects for the animals feed the feed additive compositions, as will be discussed in more detail below.
  • the feed additive compositions can be fed directly to poultry or they can be fed to poultry as a component of a poultry feed.
  • the feed additive compositions can be in any suitable form, including a solid or a liquid.
  • the feed additive composition can be a solid composition in the form of granules, flakes, pellets, powders, tablets, capsules, cubes, crumbles, pastes, gels, and the like.
  • the feed additive composition can be a dry solid.
  • the feed additive composition can be a liquid spray, a liquid water additive, or a liquid water dip bath for application to a feed product.
  • the food additive compositions herein can include a liquid drench.
  • the liquid drench can include one or more of a suspension, a solution, or an emulsion.
  • the feed additive compositions herein can include a mixture of a solid and liquid component.
  • the feed additive composition can be suitable for administration in the diet of various species of poultry as described in more detail below.
  • the feed additive compositions herein can have both shelf-life stability and temperature stability.
  • the feed additive compositions herein further can be stable during processing and storage.
  • the feed additive compositions can have a shelf life of approximately 24 months.
  • the feed additive compositions can have a shelf life of up to approximately 30 months.
  • the feed additive compositions can be stable at any storage temperature from 18 °C to 45 °C.
  • the feed additive compositions herein further can be stable at various additional storage temperatures ranging from -80 °C to 18 °C.
  • the feed additive compositions herein further can be stable at processing temperatures that meet or exceed 90 °C during processing, such as during pelleting, extrusion, and the like.
  • the amount of feed additive composition administered in the diet of an animal can vary depending on the stage of animal growth and the nutritional requirements of the animal.
  • the amount of feed additive composition can be determined based on the concentration of microbial fermentate product required to provide an amount effective to produce an inhibitory effect against Eimeria protozoa.
  • the inhibitory effect can be a direct or indirect inhibition of the reproduction or shedding, or both, of Eimeria protozoa.
  • the microbial fermentate products herein can reduce or prevent an infection in an animal against various species of Eimeria protozoa, including, but not to be limited to Eimeria acervulina, Eimeria brunetti, Eimeria hagani, Eimeria maxima, Eimeria mitis, Eimeria mivati, Eimeria necatrix, Eimeria praecox, or Eimeria tenella.
  • Eimeria protozoa including, but not to be limited to Eimeria acervulina, Eimeria brunetti, Eimeria hagani, Eimeria maxima, Eimeria mitis, Eimeria mivati, Eimeria necatrix, Eimeria praecox, or Eimeria tenella.
  • the amount of feed additive composition used herein can be determined based on the concentration of microbial fermentate product required to provide an amount effective to inhibit the reproduction or shedding, or both, of Eimeria protozoa.
  • the microbial fermentate products herein can be used in an amount effective to inhibit reproduction or shedding, or both, of one or more Eimeria protozoa species.
  • the feed additive compositions herein can include a microbial fermentate product that is sorbed by a carrier and fed to an animal.
  • the microbial fermentate products can be absorbed by a carrier material, adsorbed by a carrier material, or both.
  • Suitable carriers for use herein can include, but are not limited to, soy hulls, wheat hulls, or combinations thereof.
  • the carrier can include an inert insoluble fiber carrier such as a cellulose powder, hemicellulose, lignin, or combinations thereof.
  • the carrier can include a mineral such as a calcium carbonate.
  • the microbial fermentate products herein can be sorbed by the carriers, including absorbed or adsorbed, in any ratio suitable to transport the effective amount to the ceca of poultry.
  • the feed additive compositions herein can be added as a component of a poultry feed and then fed to an animal.
  • the microbial fermentate product herein can be added to the diet of poultry in an amount effective to produce an inhibitory effect against Eimeria protozoa.
  • the microbial fermentate product can be present at an amount effective at a concentration of from 0.01 kg/tonne, 0.05 kg/tonne, 0.10 kg/tonne, 0.15 kg/tonne, 0.20 kg/tonne, 0.25 kg/tonne, 0.30 kg/tonne, 0.35 kg/tonne, 0.40 kg/tonne, 0.45 kg/tonne, 0.50 kg/tonne, 0.55 kg/tonne, 0.60 kg/tonne, 0.65 kg/tonne, 0.70 kg/tonne, 0.75 kg/tonne, 0.80 kg/tonne, 0.85 kg/tonne, 0.90 kg/tonne, 0.95 kg/tonne, 1.0 kg/tonne, 1.25 kg/tonne, 1.5 kg/tonne, 1.75 kg/tonne, 2.0 kg/tonne, 2.25 kg/tonne, 2.5 kg/tonne, 3.0 kg/
  • the microbial fermentate product can be added to the diet of an animal at an inclusion rate that can include more than 15.0 kg/tonne microbial fermentate if such an inclusion rate does not preclude the animal from being supplied the nutritional requirements necessary to promote and maintain the normal growth and health of the animal.
  • inclusion rate can include more than 15.0 kg/tonne microbial fermentate if such an inclusion rate does not preclude the animal from being supplied the nutritional requirements necessary to promote and maintain the normal growth and health of the animal.
  • inclusion rate and “amount effective,” are used interchangeably unless otherwise noted.
  • the feed additive compositions herein can be administered directly to any suitable poultry species or can be administered to poultry as a component of a poultry feed.
  • the poultry feed suitable for use herein can be a complete poultry feed to which the feed additive composition is added.
  • a complete poultry feed can include a nutritionally adequate feed for poultry that is compounded to be fed as the sole ration and can maintain life and/or promote growth and production without any additional substances being consumed except water.
  • Complete poultry feeds can be compounded mixtures containing any combination of nutrients, as described below, plus various energy sources such as grains, fat, and protein.
  • various major vitamins and minerals can be added to the complete poultry feed.
  • a complete poultry feed can include ingredients such as, but not to be limited to, soybean, com, wheat, soybean meal, meat and bone meal, fats and oils (e.g., soya oil), limestone, monocalcium phosphate (CaFL ⁇ Os), sodium bicarbonate (NaHCOi), sodium chloride (NaCl), ammino acids (e.g., L-lysine HC1, DL- methionine, and L-threonine), vitamins (e.g., vitamin A (retinyl-acetate), vitamin D3 (cholecalciferol), vitamin E (DL-a-tocopherol), vitamin K3 (menadione), vitamin Bl (thiamine), vitamin B2 (riboflavin), vitamin B6 (pyridoxine-HCL), vitamin B12 (cyanocobalamin), vitamin b3 (niacin), D-pantothenic acid, vitamin B9 (folic acid), vitamin B9 (biotin), salts, organic acids, choline chloride (C5
  • cupric sulfate CuSOrAFLO
  • manganese II oxide
  • ZnSCL.ELO zinc sulfate
  • Na2SeOi sodium selenite
  • enzymes phytase, and various combinations thereof.
  • the total protein in the poultry feed can be from about 10 wt.% to about 40 wt.%, from about 12 wt.% to about 35 wt.%, from about 15 wt.% to about 30 wt.%, or from about 16 wt.% to about 26 wt.%.
  • Total protein in the poultry feed can be from 5 wt.%, 6 wt.%, 7 wt.%, 8 wt.%, 9 wt.%, 10 wt.%, 1 1 wt.%, 12 wt.%, 13 wt.%, 14 wt.%, 15 wt.%, 16 wt.%, 17 wt.%, 18 wt.%, 19 wt.%, 20 wt.%, 21 wt.%, 22 wt.%, 23 wt.%, 24 wt.%, 25 wt.%, 26 wt.%, 27 wt.%, 28 wt.%, 29 wt.%, 30 wt.%, 31 wt.%, 32 wt.%, 33 wt.%, 34 wt.%, 35 wt.%, 36 wt.%, 37 wt.%, 38 wt.%, 39 wt.%
  • the total protein in the poultry feed can be variable depending on the formulation and intended use of the feed.
  • L0039J Total fat (e.g., oil, fat, and/or lipids) in the poultry feed can be from about 0.5 wt.% to about 10 wt.%, from about 1.0 wt.% to about 8 wt.%, from about 1.5 wt.% to about 7 wt.%, or from about 3 wt.% to about 6 wt.%.
  • Total fat in the poultry feed can be from 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0%, 1.5%, 2.0%, 2.5%, 3.0%, 3.5%, 4.0%, 4.25%, 4.5%, 4.75%, 5.0%, 5.25%, 5.5%, 5.75%, 6.0%, 6.5%, 7.0%, 7.5%, 8.0%, 8.5%, 9.0%, 9.5%, or 10.0% by percent weight of the poultry feed, or can be any amount falling within a range of any of the forgoing.
  • the total fat in the poultry feed can be variable depending on the formulation and intended use of the feed.
  • a poultry feed formulated for a chicken can include from about 1.5 wt.% to about 10.0 wt.% fat.
  • a poultry feed formulated for a turkey can include from about 0.5 wt.% to about 10.0 wt.% fat.
  • the feed additive compositions herein can be any suitable feed product designed for mixing with another composition, such as a base feed, to form the poultry feed.
  • the feed additive composition further can include a premix, a concentrate, a base mix, a supplement, a top dress, or a combination thereof.
  • a base feed can be a commercially available feed or other animal feed.
  • a base feed suitable for poultry can refer to a ration that contains any of the various cereal grains, their byproducts, and other sources of primary nutrition (e.g., fat, starch, and protein) such as barley, blood meal, bone meal, com (e.g., whole or meal), poultry meal, hominy, soybeans (e.g., whole or meal), tallow, wheat (e.g., whole, bran, or middlings), or a combination thereof.
  • primary nutrition e.g., fat, starch, and protein
  • a premix can be a composition that can include vitamins, minerals, appropriate medications, carriers, and combinations thereof, and are typically less than 1 wt.% of the diet but can be higher.
  • the carrier can increase bulk to improve distribution in compounding to prepare a more complete feed material.
  • Such premixes can be used to formulate concentrates and complete feeds.
  • a concentrate can be a composition that can include high-protein feed components and can also include vitamins, minerals, appropriate medications, and combinations thereof.
  • a concentrate is typically 5 wt.% to 40 wt.% of the diet but can be higher or lower.
  • a concentrate can include additives. Concentrates can be used to make complete feeds by adding available grains or other energy sources.
  • An additive can include an ingredient or a chemical preparation or combination of ingredients which is added to the base feed to fulfill a specific nutritional requirement. It can be used in micro quantities and may have no nutritional value but is added to the feed to improve its quality and efficacy .
  • Feed additives can include, but are not limited to, acidifiers, antioxidants, aromatics, deodonzing agents, flavor enhancers, mold inhibitors, pellet binders, preservatives, sweeteners, toxin binders, and the like.
  • a base mix can be similar to a supplement but can contain just a portion of the animal's (e.g., the poultry’s) protein requirements, so it can be used with high protein ingredients and grain (e.g., ground grain and protein source, such as soybean meal) to form the poultry feed.
  • a base mix can include a mixture of one or more macro-mineral sources and one or more microingredient sources such as vitamin premixes, trace mineral premixes, essential amino acids, and feed additives, that when mixed with sources of protein and energy form a complete feed.
  • a supplement can include a feed ingredient, or a chemical preparation or combination of feed ingredients, intended to supply any deficiencies in an animal (e.g., poultry) feed and/or improve the nutritive balance or performance of the animal or poultry feed.
  • a feed ingredient or a chemical preparation or combination of feed ingredients, intended to supply any deficiencies in an animal (e.g., poultry) feed and/or improve the nutritive balance or performance of the animal or poultry feed.
  • a top dress can include a supplement that can be added at specific time intervals to the bird’s ration to provide a specific supplement or supplements over a time period that makes it inconvenient or difficult to include in a complete feed.
  • the feed additive compositions herein can be added to a premix, a concentrate, a supplement, a top dress, or a base mix that is added to a poultry feed and can be formulated such that the feed additive composition is any suitable proportion of the diet, such as 30 wt.% or less of the poultry feed, or 10 wt.% or less of the poultry feed.
  • the feed additive compositions herein can make up any suitable proportion of the diet, such as from 0. 1 wt.% to 30 wt.%, 1 wt.% to 30 wt.%, 1 wt.% to 15 wt.%, 1 wt.% to 5 wt.%, 15 wt.% to 30 wt.%.
  • the feed additive compositions herein can make up any suitable proportion of the diet, such as from about 1 wt.%, 2 wt.%, 3 wt.%, 4 wt.%, 5 wt.%, 6 wt.%, 8 wt.%, 10 wt.%, 12 wt.%, 14 wt.%, 16 wt.%, 18 wt.%, 20 wt.%, 22 wt.%, 24 wt.%, 26 wt.%, 28 wt.%, or 30 wt.% of the poultry feed, or can be any amount falling within a range of any of the forgoing. It will be appreciated that in some aspects, the feed additive composition can be present at greater than 30 wt.% of the poultry feed.
  • the feed additive compositions described herein can form any suitable proportion of a poultry feed as a portion of a premix, base mix, concentrate, supplement, top dress, or a combination thereof.
  • the feed additive composition can be about 0.01 wt.% to about 99.9 wt.%, about 0.1 wt.% to about 95 wt.%, or about 0.5 wt.% to about 90 wt.% of the poultry feed, such that the final poultry feed includes 0.01 kg/tonne to 15.0 kg/tonne of the feed additive composition.
  • the amount of microbial fermentate product present in the feed additive compositions and effective to produce an inhibitory effect against Eimeria protozoa can include a concentration falling within the range from 0.01 kg/tonne to 15.0 kg/tonne.
  • the amount of microbial fermentate product effective to produce a beneficial effect, including improved health measures and enhanced performance measures, in animals infected with Eimeria protozoa can include a concentration falling within a range from 0.01 kg/tonne to 15.0 kg/tonne.
  • the microbial fermentate product can be added to a poultry feed in an amount effective to produce one or more beneficial effects in an animal infected with Eimeria protozoa.
  • the microbial fermentate product can be added to a poultry feed at concentrations including from 0.01 kg/tonne, 0.05 kg/tonne, 0.10 kg/tonne, 0.15 kg/tonne, 0.20 kg/tonne, 0.25 kg/tonne, 0.30 kg/tonne, 0.35 kg/tonne, 0.40 kg/tonne, 0.45 kg/tonne, 0.50 kg/tonne, 0.55 kg/tonne, 0.60 kg/tonne, 0.65 kg/tonne, 0.70 kg/tonne, 0.75 kg/tonne, 0.80 kg/tonne, 0.85 kg/tonne, 0.90 kg/tonne, 0.95 kg/tonne, 1.0 kg/tonne, 1.25 kg/tonne, 1.5 kg/tonne, 1.75 kg/tonne, 2.0 kg/tonne, 2.25 kg/tonne, 2.5 kg/tonne, 3.0 kg/tonne, 3.5 kg/tonne, 4.0 kg/tonne, 4.5 kg/tonne, 5.0 kg/tonne, 5.5 kg/tonne, 6.0 kg/tonne
  • the inclusion rate of the microbial fermentate products suitable for use herein can be expressed as kg/tonne, Ib/ton, or wt.%. It will be appreciated that a kg/tonne value can be converted to a wt.% by dividing the kg/tonne value by 1000 and multiplying the resulting value by 100. It will be appreciated that a “tonne” is also referred to in the art as a “metric ton,” where the value of a tonne is equivalent to approximately 1000 kg (i.e., 2204.62 pounds). Unless otherwise noted, as used herein the value for “ton” present in the units Ib/ton is equivalent to approximately 2000 pounds.
  • the feed additive compositions herein can be formulated for use in any suitable species of poultry and at any suitable life stage.
  • the term “poultry” as used herein refers to domestic fowls, including chickens, turkeys, geese, ducks, ostriches, quails, and pheasants raised to produce meat or eggs.
  • Poultry can include birds characterized as “broilers,” defined as birds reared for meat production, and can also include birds characterized as “layers,” defined as birds reared for laying eggs.
  • Poultry further can include birds characterized as “breeders,” defined as birds that have reached the age of sexual maturity and can lay eggs.
  • the poultry described herein can be selected from the group including a chicken, a turkey, a duck, and a goose. In some aspects, the poultry is a chicken.
  • the terms “chicken,” “broiler chicken,” “broiler,” “layer,” and “bird,” are used interchangeably unless otherwise noted.
  • Chickens ⁇ Gallus gallus domesticus suitable for use in herein can include, but are not limited to, breeds and strains such as Hy-Line, Lohmann, H&N, Hendrix, Ross, Cobb, Hybro, Heritage, Hubbard, ISA, Shaver, Arbor Acres, Indian River, Peterson, and Dekalb.
  • Turkeys ⁇ Meleagris gallopavo domesticus can include, but are not limited to, breeds and strains such as Broad Breasted White, Nicholas, British United Turkeys, Hybrid Turkeys, Broad Breasted Bronze, and Standard Bronze.
  • the present disclosure provides methods for feeding poultry the feed additive compositions described herein.
  • the methods for feeding poultry can include feeding an animal or group of animals a microbial fermentate product in the feed additive composition in an amount effective to produce an inhibitory effect against Eimeria protozoa to provide a beneficial effect to the poultry.
  • the beneficial effect can be determined as one or more improved health measures or enhanced performance measures, or a combination thereof, in an animal or group of animals infected with Eimeria protozoa.
  • a beneficial effect resulting from an enhancement in performance measures can be a direct result of a beneficial effect due to improved health measures in animals infected with Eimeria protozoa.
  • a beneficial effect resulting from an enhancement in performance measures can be an indirect result of a beneficial effect due to improved health measures in animals infected with Eimeria protozoa.
  • a beneficial effect resulting from an enhancement in performance measures can be a direct or an indirect result, or both, of a beneficial effect due to improved health measures in animals infected with Eimeria protozoa. It will be appreciated that the beneficial effects described herein can be observed in poultry having a clinical or subclinical infection with Eimeria protozoa.
  • animals that are not infected with Eimeria protozoa can also exhibit a beneficial effect when fed the feed additive compositions herein, including one or more improved health measures or enhanced perfonnance measures, or a combination thereof.
  • beneficial effects including one or more improved health measures or enhanced perfonnance measures, or a combination thereof.
  • Producing a beneficial effect in an animal can be a result of the direct or indirect inhibition of the reproduction or shedding, or both, of Eimeria protozoa in response to the administration of the feed additive compositions herein.
  • the beneficial effects against Eimeria protozoa can be measured in the animal(s) as one or more improved health measures.
  • the improved health measures can include a reduction in the number of necrotic lesions in the animal and a reduction in the severity of the necrotic lesions in the animal.
  • the improved health measures can include a reduction in ceca lesion number, a reduction in ceca lesion severity, a reduction in liver lesion number, and/or a reduction in liver lesion severity, or a combination thereof.
  • the reduction in the number of necrotic lesions in poultry infected with Eimeria protozoa can be compared relative to a corresponding method using poultry feed that does not include the feed additive compositions.
  • the number of ceca lesions and/or liver lesions can be reduced by at least 5%, at least 10%, at least 15%, at least 20%, at least 25%, at least 30%, at least 40%, at least 50%, at least 60%, or at least 75%, or a range falling within any of the forgoing, as compared to poultry infected with Eimeria protozoa that have not been fed the feed additive compositions.
  • a reduction in lesion severity i.e., a reduction in ceca lesion severity or number and/or a reduction in liver lesion severity or number
  • in poultry infected with Eimeria protozoa can be determined by scoring the number and severity of lesions present in the liver and ceca of infected birds.
  • Lesion severity for both ceca lesions and liver lesions can be seen as an increase as the lesion score increases from 0 to 4.
  • An exemplary lesion scoring schema is described in Table 1, which can be applied in full or in part depending on which portion of the animal (e.g., ceca, liver, or both) is being analyzed during a course of treatment.
  • ceca lesion severity can be measured as the average ceca lesion score or as the percent of lesions with a high ceca lesion score. For example, more ceca lesions scored as a 0, 1, or 2 as opposed to a 3 or 4, can be an indication of less severe ceca lesions in the poultry.
  • a reduction in ceca lesion severity upon feeding poultry a poultry feed containing the feed additive compositions described herein can be a reduction in average ceca lesion score of at least 5%, at least 10%, at least 20%, at least 30%, at least 40%, at least 50%, at least 60%, at least 70%, at least 80%, or at least 90% as compared to poultry fed diet lacking the feed additive compositions.
  • a reduction in ceca lesion severity upon feeding poultry the feed additive compositions described herein can be a reduction in the percent of ceca lesions scored as a 3 or 4, such that less than 50%, less than 40%, less than 30%, less than 20%, less than 15%, or less than 10% of ceca lesions are scored a 3 or a 4, or such that the percent of ceca legions scored a 3 or 4 is reduced relative to poultry fed a diet lacking a feed additive composition.
  • liver lesion severity can be measured as the average liver lesion score or as the percent of lesions with a high liver lesion score. For example, more liver lesions scored as a 0, 1, or 2 as opposed to a 3 or 4, is an indication of less severe liver lesions in the poultry.
  • a reduction in liver lesion severity upon feeding the poultry a poultry feed containing the feed additive compositions described herein can be a reduction in average liver lesion score of at least 5%, at least 10%, at least 20%, at least 30%, at least 40%, at least 50%, at least 60%, at least 70%, at least 80%, or at least 90% as compared to poultry fed a poultry feed lacking the feed additive compositions.
  • a reduction in liver lesion severity upon feeding the poultry the feed additive compositions containing poultry feed described herein can be a reduction in percent of liver lesions scored as a 3 or 4, such that less than 50%, less than 40%, less than 30%, less than 20%, less than 15%, or less than 10% of liver lesions are scored a 3 or a4, or such that the percent of liver legions scored a 3 or 4 is reduced relative to poultry fed a diet without the feed additive compositions.
  • the beneficial effects against Eimeria protozoa can also be measured in the animal(s) as one or more enhanced performance measures.
  • Poultry fed the feed additive compositions by the methods herein can exhibit enhanced performance measures, including an increase in weight, a decrease in feed conversion ratio, an increase in egg production, a decrease in mortality, a decrease in morbidity, or any combination of these traits when infected with Eimeria protozoa.
  • the enhanced performance measures in poultry fed the feed additive compositions herein can include an increase in weight, a decrease in feed conversion ratio, an increase in egg production, a decrease in mortality, a decrease in morbidity, or combinations thereof, relative to poultry fed a feed lacking the feed additive compositions.
  • Birds fed the feed additive compositions by the methods herein further can exhibit prevention of infection with Eimeria protozoa or improved treatment efficacy and/or reduction of severity of infection when infected with Eimeria protozoa.
  • the enhanced performance measures described herein can be observed in poultry infected with Eimeria protozoa through a challenge in a controlled setting or in poultry infected with Eimeria protozoa via an environmentally acquired infection in their habitat in an amount effective to cause disease in the poultry. It will be appreciated that the enhanced performance measures described herein can be observed in birds fed the feed additive compositions herein even when the birds are not infected with Eimeria protozoa in an amount effective to cause disease in the poultry.
  • the methods described herein can increase the weight of poultry fed the feed additive compositions.
  • the weight can be increased by at least 0.5%, at least 1%, at least 2%, at least 3%, at least 4%, at least 5%, at least 10%, at least 20%, or at least 30%, or any amount falling within a range of the forgoing, relative to poultry fed an equivalent poultry feed lacking the feed additive compositions.
  • the increase in weight can include an average weigh increase of from at least 0.5% to 30%, or from at least 0.5% to 10%, or from at least 10% to 30% in a population of poultry fed the feed additive composition as compared to an average weight in a population of poultry fed a diet lacking the feed additive composition.
  • Weight of individual birds can be measured using standard weighing techniques at any predetennined time interval over the course of the lifespan of the bird.
  • birds can be weighed at birth and then weighed each day following birth until the animal expires.
  • the birds can be weighed twice a day, every other day, weekly, or monthly during the lifespan of the bird.
  • Weight can be compared across treatment groups and to controls not fed the feed additive compositions over one or more time periods during the lifespan of a bird(s). Comparison of weight gain at various time intervals, across treatment groups, and to controls (e.g., both positive and negative controls) can be made to determine the effect of a given feed additive composition on weight gain.
  • the methods described herein can decrease the feed conversion ratio of poultry fed the feed additive compositions.
  • the feed conversion ratio is the measure of an animal(s) efficiency at converting the total amount of feed that the animal(s) consumes over a given period of time against the total weight output (including body mass and/or eggs produced) that the animal(s) gains from consuming the feed during the given period of time.
  • FCR is a unitless value that correlates to the amount of total weight output as measured by body mass and/or eggs produced by the animal(s) fed the feed additive compositions.
  • FCR can be determined using the following formula:
  • FCR ratios for poultry treated with the microbial fermentates herein can include, but are not to be limited to, FCR ratios of from 0.5 to 10, or from 0.5 to 5.
  • the FCR for poultry feed the feed additive compositions herein can be from 1.300 to 1.800.
  • the FCR can be reported as points from 0.5 to 10. It will be appreciated that a lower feed conversion ratio can correlate to a greater efficiency by the animal(s) at converting the total amount of feed consumed over a known period of time into total weight output (e.g., as measured by body mass and/or egg production).
  • the feed conversion ratio can be decreased by at least 0.5%, at least 1.0%, at least 1 .5% at least 2%, at least 3%, at least 4%, at least 5%, at least 6%, at least 7%, at least 8%, at least 9%, or at least 10%, or any amount falling within a range of the forgoing, relative to the feed conversion ratio in poultry fed an equivalent poultry feed lacking the feed additive compositions.
  • the decrease in feed conversion ratio can include an average feed conversion ratio decrease of from 0.5% to 10% in a population of poultry fed the feed additive composition as compared to an average feed conversion ratio in a population of poultry fed a diet lacking the feed additive composition.
  • the methods described herein can increase egg production of the poultry.
  • Egg production can be increased by at least 0.5%, at least 1.0%, at least 1.5% at least 2%, at least 3%, at least 4%, at least 5%, at least 10%, at least 15%, at least 20%, or at least 25%, or any amount falling within a range of the forgoing, relative to poultry fed an equivalent feed lacking the feed additive compositions.
  • the increase in egg production can include an average increase of from at least 0.5% to 25%, or from at least 0.5% to 10%, or from at least 10% to 25% in the egg production of a population of poultry fed the feed additive composition as compared to a population of poultry fed a diet lacking the feed additive composition.
  • Egg production can be calculated over the course of the lifespan of the birds being fed the feed additive compositions herein. Egg production can be determined by monitoring and recording the number of eggs laid by each individual bird or of the number of eggs laid by the entire flock of birds. In some aspects, the number of eggs laid by each individual bird, or the entire flock of birds, can be recorded once a day, every other day, weekly, or monthly during the lifespan of the birds. Comparison of egg production at various intervals, across treatment groups, and to controls (e.g., both positive and negative controls) can be made to determine the effect of a given feed additive composition on egg productivity.
  • the methods described herein can decrease mortality of the poultry.
  • Mortality can be decreased by at least 0.5%, at least 1.0%, at least 2%, at least 3%, at least 4%, at least 5%, at least 10%, at least 15%, at least 20%, at least 30%, or at least 40%, or any amount falling within a range of the forgoing, relative to poultry fed an equivalent poultry feed lacking the feed additive compositions.
  • the decrease in mortality can include an average decrease of from at least 0.5% to 40%, or from at least 0.5% to 10%, or from at least 10% to 40% in the mortality of a population of poultry fed the feed additive composition as compared to a population of poultry fed a diet lacking the feed additive composition.
  • Mortality can be monitored over the course of a lifespan of the birds being fed the feed additive compositions herein. Mortality' can be recorded as the death of one bird or a percentage of a population of birds. Comparison of mortality at various intervals, across treatment groups, and to controls (e.g., both positive and negative controls) can be made to determine the effect of a given feed additive composition on mortality over the course of a treatment.
  • the methods described herein can decrease morbidity in the poultry.
  • morbidity can be decreased by at least 0.5%, at least 1.0%, at least 2%, at least 3%, at least 4%, at least 5%, at least 10%, at least 15%, at least 20%, at least 30%, or at least 40%, or any amount falling within a range of the forgoing, relative to poultry fed an equivalent poultry feed lacking the feed additive compositions.
  • the decrease in morbidity can include an average decrease of from at least 0.5% to 40%, or from at least 0.5% to 10%, or from at least 10% to 40% in the morbidity of a population of poultry fed the feed additive composition as compared to a population of poultry fed a diet lacking the feed additive composition.
  • Morbidity can be monitored over the course of a lifespan of the birds being fed the feed additive compositions herein.
  • Morbidity can include the incidence of one or more type of illness identified by various symptoms of necrotic enteritis or other illness, including but not to be limited to, inactivity, listlessness, diarrhea, bloody stools, lesions, cloudy eyes, pus in the eyes, tissue mass, scaly legs, loss of appetite, respiratory distress, paralysis, and the like.
  • Morbidity' can be recorded as symptomatic illness in one bird or a percentage of a population of birds exhibiting symptomatic illness. Comparison of morbidity at various intervals, across treatment groups, and to controls (e.g., both positive and negative controls) can be made to determine the effect of a given feed additive composition on morbidity.
  • Feeding poultry with the feed additive compositions can begin upon hatching and can extend throughout an animal’s lifecycle. Feeding poultry the feed additive compositions can also be performed over a narrower time span or life stage. It will be appreciated that the feed additive compositions can be administered as a daily feed ration that is fed to the poultry on most days or on all days. In various aspects, the feed additive composition can be administered to the poultry one, two, three, four, five, six, or seven days of the week, or a range falling within any of the forgoing, for a predetermined time span, or for the life of the animal.
  • the feed additive compositions herein can be fed to the animal(s) during any of its discrete life stages, throughout the lifespan of the animal, or only when the animal has an active infection.
  • the feed additive compositions can be fed at any inclusion rate described herein to an animal throughout the duration of an active infection and until the infection is cleared, where the animal can then be switched back to a diet that lacks the feed additive compositions.
  • the feed additive compositions herein can be fed prophylactically to the animals to prevent disease.
  • the feed additive compositions herein can be fed prophylactically to the animals at a first inclusion rate, and if the animals become infected with a pathogen the animal could be switched to a diet including a feed additive composition at a second inclusion rate, where the second inclusion rate is higher than the first inclusion rate.
  • the animal can be returned to a diet at a first inclusion rate or a diet having no feed additive composition included therein.
  • the first inclusion rate and second inclusion rate can include any inclusion rate or a range of inclusion rates as described elsewhere herein.
  • the methods herein can include feeding poultry a feed additive composition directly and/or feeding poultry a poultry feed containing the feed additive composition.
  • the feed additive compositions fed to the poultry can include one or more microbial fermentate products, or it can include one or more microbial fermentate products plus other components as described elsewhere herein.
  • the methods of feeding the poultry herein can inhibit the reproduction or shedding, or both, of Eimeria protozoa in the poultry.
  • the amount of feed additive composition can be determined based on the concentration of microbial fermentate product required to provide an amount effective to produce an inhibitory effect against Eimeria protozoa, such as directly or indirectly inhibiting the reproduction or shedding, or both, of Eimeria protozoa.
  • the methods using the feed additive compositions herein can provide various advantages to poultry as compared to corresponding methods using poultry feed that does not include the feed additive compositions.
  • the methods using the feed additive compositions herein can produce a beneficial effect in an animal fed the feed additive composition as observed relative to poultry fed a diet lacking the feed additive composition.
  • the methods herein can include any suitable methods of administering the feed additive compositions to poultry.
  • the methods herein are directed to administering the feed additive compositions chickens or turkeys.
  • the methods can include mixing the feed additive compositions with a base feed, a premix, a concentrate, a base mix, a supplement, a top dress, or a combination thereof as described elsewhere herein, and providing the mixture to poultry for ingestion.
  • the methods can include administering the feed additive compositions directly to poultry for ingestion.
  • the methods can include administering a feed additive composition at a concentration in an amount effective to produce an inhibitory effect against Eimeria protozoa in a range from 0.01 kg/tonne, 0.05 kg/tonne, 0.10 kg/tonne, 0.15 kg/tonne, 0.20 kg/tonne, 0.25 kg/tonne, 0.30 kg/tonne, 0.35 kg/tonne, 0.40 kg/tonne, 0.45 kg/tonne, 0.50 kg/tonne, 0.55 kg/tonne, 0.60 kg/tonne, 0.65 kg/tonne, 0.70 kg/tonne, 0.75 kg/tonne, 0.80 kg/tonne, 0.85 kg/tonne, 0.90 kg/tonne, 0.95 kg/tonne, 1.0 kg/tonne, 1.25 kg/tonne, 1.5 kg/tonne,
  • the methods can include use of a feed additive compositions in the diet of an animal at an inclusion rate that can include more than 15.0 kg/tonne feed additive composition as long as the inclusion rate does not preclude the animal from being supplied the nutritional requirements necessary to promote and maintain the normal growth and health of the animal.
  • the methods herein can include inhibiting the reproduction or shedding, or both, of Eimeria protozoa in poultry.
  • the methods can include feeding poultry by administering the feed additive composition containing a microbial fermentate product to the poultry.
  • the microbial fermentate product can be present in the feed additive compositions administered to the poultry in an amount effective to produce an inhibitory effect against Eimeria protozoa, where the inhibitory effect results in one or more beneficial effects for the poultry.
  • the feed additive compositions can be administered to poultry in an amount effective to directly or indirectly inhibit the reproduction or shedding, or both, of Eimeria protozoa.
  • the Eimeria protozoa can include one or more of Eimeria acervulina, Eimeria brunetti, Eimeria hagani, Eimeria maxima, Eimeria mitis, Eimeria mivati, Eimeria necatrix, Eimeria praecox, or Eimeria tenella.
  • the methods described herein can reduce or prevent a Eimeria infection in poultry.
  • Administering the feed additive composition containing a microbial femrentate product to the poultry as described herein can reduce or prevent a Eimeria infection in the poultry.
  • the microbial fermentate product can be present in the feed additive compositions administered to the poultry in an amount effective to produce an inhibitory effect against Eimeria protozoa, where the inhibitory effect results in one or more beneficial effects for the poultry.
  • poultry fed the feed additive compositions described herein are challenged with or infected via an environmentally acquired infection in their habitat i th Eimeria protozoa the incidence of an infection in the poultry can be reduced relative to incidence of an infection in poultry' fed a poultry feed lacking the feed additive compositions.
  • incidence of Eimeria protozoa can be reduced at least 10%, at least 20%, at least 30%, at least 40%, at least 50%, at least 60%, or at least 70%, or any amount falling within a range of the forgoing, as compared to the incidence of infection in poultry fed a feed lacking the feed additive compositions.
  • the incidence of Eimeria protozoa can be reduced to more than 70%.
  • the methods described herein can treat or reduce the severity of a Eimeria infection.
  • Administering the feed additive composition containing a microbial fermentate product to the poultry as described herein can reduce the severity of a Eimeria infection in the poultry.
  • the microbial fermentate product can be present in the feed additive compositions administered to the poultry in an amount effective to produce an inhibitory' effect against Eimeria protozoa, where the inhibitory effect results in one or more beneficial effects for the poultry.
  • the severity of a Eimeria infection can be measured as the mortality rate, or culling rate, of birds infected with Eimeria protozoa. For example, a reduction in the mortality rate can indicate a reduction in the severity of a Eimeria infection.
  • the methods described herein can treat a Eimeria infection in poultry by reducing one or more symptoms of the infection, reducing mortality rate, reducing the morbidity rate, or increasing the number of birds that clear the infection.
  • the methods described herein include a method for enhancing performance measures in poultry.
  • the method can include administering a feed additive composition including a microbial fermentate product to poultry, where the microbial fermentate product is present in the feed additive composition in an amount effective for enhancing performance measures in the poultry.
  • the method includes enhancing performance measures in poultry that are infected with one or more of Eimeria acervulina, Eimeria maxima, or Eimeria tenella.
  • the enhanced performance measures include an increase in weight, a decrease in feed conversion ratio, an increase in egg production, a decrease in mortality, a decrease in morbidity, or any combination thereof. The enhanced performance measures are described in more detail elsewhere herein.
  • the methods herein can include challenging a population of poultry with one or more of Eimeria acervulina, Eimeria maxima, or Eimeria tenella at an amount of from 1.0 x 10° to 1.0 x 10 10 sporulated oocysts or sporozoites, or from 1.0 x 10 3 to 1.0 x 10 9 sporulated oocysts or sporozoites, or from 1.0 x 10 8 to 60.0 x 10 8 sporulated oocysts or sporozoites, in a dietary ration of an animal, or from 1.0 x 10 8 to 60.0 x 10 8 sporulated oocysts or sporozoites in 1-3 ml volumes mixed into from 15 to 30 grams of poultry feed per bird.
  • the methods can include challenging a population of poultry with one or more of Eimeria acervullna, Eimeria maxima, or Eimeria tenella at an amount of from at least 1.0 x 10°, at least 1.0 x io 1 , at least 1.0 x 1 2 , at least 1.0 x ] 0 3 , at least 1.0 x T O 4 , at least 1.0 x 10 5 , at least 1.0 x 10 6 , at least 1.0 x 10 7 , at least 1.0 x io 8 , at least 1.5 x io 8 , at least 2.0 x io 8 , at least 2.5 x io 8 , at least 3.0 x io 8 , at least 3.5 x io 8 , at least 4.0 x io 8 , at least 4.5 x io 8 , at least 5.0 x io 8 , at least 5.5 x 10 s , at least 6.0 x 10
  • the dose of Eimeria protozoa can be administered during a challenge of a population of poultry in a way that it is not included in a daily ration.
  • the dose of Eimeria protozoa can be administered directly to each bird in an enclosure, such as via oral gavage.
  • the dose of Eimeria protozoa can be administered directly to a predetermined number of birds per enclosure, where those birds are then returned to the enclosure with any remaining non-infected birds, and where the directly infected birds act as seeder birds that then go on to infect the remainder of birds in the enclosure through direct contact or through indirect contact such as through excrement in the environment. It will be appreciated that challenging a population of poultry can be performed using any strain of Eimeria protozoa, or mixtures thereof, as described elsewhere herein.
  • Challenging a population of poultry with Eimeria protozoa can include administering an amount of from 1.0 x 10° to 1.0 x 10 10 sporulated oocysts or sporozoites, of from 1 0 x 10 3 to 1 .0 x 10 9 sporulated oocysts or sporozoites, or from 1 .0 x 10 8 to 60.0 x 10 8 sporulated oocysts or sporozoites of Eimeria protozoa in 1-3 ml volumes mixed into from 15 to 30 grams in a daily ration of poultry feed per bird.
  • the birds can be allowed to consume the mixture for anywhere from 0.5 to 4 hours post administration and then returned to the diet containing the feed additive compositions.
  • the birds can have their feed trays emptied for 0 to 8 hours prior to administration of the mixture containing Eimeria acervulina, Eimeria maxima, or Eimeria tenella.
  • a challenge with Eimeria acervulina, Eimeria maxima, or Eimeria tenella, or any other type of Eimeria protozoa can include a challenge in a controlled setting where the bacteria are administered directly to the poultry.
  • poultry can acquire an infection during a challenge in a controlled setting
  • the poultry treated with the feed additive compositions herein can acquire an infection with Eimeria protozoa in their habitat.
  • naturally acquired infections with Eimeria protozoa can include those acquired in the animals’ habitat where the bacteria are ingested in an amount effective to cause disease in the animal(s).
  • the beneficial effects described using the feed additive compositions herein can be observed in poultry infected with Eimeria protozoa through a challenge in a controlled setting and in poultry infected with Eimeria protozoa via an environmentally acquired infection in their habitat in an amount effective to cause disease in the poultry.
  • the infections herein with Eimeria protozoa can include those that are subclinical or clinical.
  • Bacterial and fungal strains for generating the microbial fermentate products herein include one or more of: Acetobacter okinawensis, Acetobacter pasteurianus, Arxula adeninivorans, Bacillus altitudinis, Bacillus aryabhattai, Bacillus coagulans, Bacillus halotolerans, Bacillus megaterium, Bacillus pumilis, Bacillus safensis, Bacillus xiamenensis, Candida carpophila, Candida fermentati, Debaryomyces hansenii, Kazachstania martiniae, Lactobacillus plantarum, Lactobacillus rhamnosus, Lactococcus lactis, Mucor indicus, Paenibacillus taichonnesis, Pediococcus acidilactici, Phaffla rhodozyma, Pichia barkeri, Priceomyces meliss
  • microbial derived fermentates of the various microbial strains described in Example 1 were prepared in 250 ml baffled shake flasks as follows. Bacterial cultures were grown in TSB (Tryptic Soy Broth) containing the following composition: BactoTM Tryptone (Pancreatic Digest of Casein, Thermo Fisher Scientific, Waltham, MA, USA) 17.0 g/L, BactoTM Soytone (Peptic Digest of Soybean Meal, Thermo Fisher Scientific, Waltham, MA USA) 3.0 g/E, glucose 2.5 g/L, sodium chloride 5.0 g/L, and dipotassium hydrogen phosphate 2.5 g/L.
  • Seed culture medium was inoculated with fresh biomass from a single colony sampled from prepared agar plates using an inoculation loop. Seed cultures were incubated for 18-24 hours in a shaker at 250 rpm, 30 °C, and 75% humidity. Any fungal-derived fermentates using the various microbial strains described in Example 1 were prepared in YPD Medium (Yeast Extract Peptone Dextrose, Thermo Fisher Scientific, Waltham, MA USA) unless otherwise indicated.
  • YPD Medium Yeast Extract Peptone Dextrose, Thermo Fisher Scientific, Waltham, MA USA
  • Working cultures for obtaining fermentates were generated using 250 ml baffled shake flasks containing 50 ml of TSB medium that were inoculated at initial ODeoo (i.e., optical density at 600 nm) of 0.1 using an inoculum from the overnight seed cultures.
  • Working cultures were incubated on an agitation shaker at 250 rpm, 30 °C, and 75% humidity for 24 hours. After 24 hours, the agitation was turned off in the shaker and the cultures were incubated for an additional 24 hours. After 48 hours post inoculation, the 250 ml flasks were removed from the shaker and heated to 60 °C and held at that set point for one hour to heat inactivate the microbial culture biomass.
  • Fermentates were packaged and stored at -80 °C until further chemical and biological characterization. Upon use in the in vitro analyses herein, the fermentates were thawed and heated to 75 °C for 15 mm for an additional heat inactivation step. The contents were then split between 4 tubes, vortexed, and used immediately or stored at -20 °C for additional future use and testing.
  • Eimeria oocysts were prepared for analysis to determine the effects of fermentates on various types of Eimeria protozoa.
  • the remaining sediment was washed by being resuspend in water, centrifuged for 1600 x g for 5 minutes and the supernatant discarded. The remaining sediment was resuspended in 2.5% (w/v) potassium dichromate solution and 1% antibiotics. Washed oocysts were stored at 4 °C until ready for use.
  • a trypan blue staining assay was performed to analyze Eimeria viability following incubation with microbial fermentates.
  • the trypan blue staining assay allows for a direct identification and enumeration of Eimeria protozoa at various life cycle phases. Viability of Eimeria oocysts can be determined by trypan blue exclusion from the interior of the oocyst.
  • a viable oocyst has a clear cytoplasm in the presence of trypan blue, whereas a nonviable oocyst has a blue cytoplasm in the presence of trypan blue stain.
  • Trypan blue exclusion staining can be utilized to stain Eimeria protozoa at various life stages, including but not to be limited to oocysts, sporocysts, and sporozoites.
  • Fermentates were thawed from individual 100 pl stocks and filter sterilized with a 0.2-micron polyethylene terephthalate (PET) filter. Each well was brought to a total volume of 200 pl by adding 170 pl of sterile PBS and 20 pl of each sterilized fermentate in duplicate. A total of 343 fermentates were assayed. Control wells were included as follows: PBS only, fermentate alone, and untreated oocysts with and without trypan blue exclusion dye.
  • PET polyethylene terephthalate
  • Complete sporulation consists of four sporocyst, each containing two sporozoites. Once sporulation reached at least 85% sporulation, oocysts were stored at 4 °C prior to cleaning.
  • HBSS Hank’s Balanced Salt Solution
  • Isolation and purification of sporozoites The oocyst suspension was counted using a hemocytometer, and the number required for the assay were removed (approximately 2 x 10 6 oocysts). The oocysts were placed into a 2 mL round bottom centrifuge tube and were centrifuged for 30 seconds at 10,000 x RCF to pellet the oocysts. The pelleted oocysts was suspended in 1 mL HBSS and 0.25 mL - 0.5 mL of 0.5 mm diameter (Jencons, No 8. Ballottini) glass beads were added. The tube was placed into a bead beater for 10 seconds.
  • sporozoites For excystation of the sporozoites, 0.25-0.5% (w/v) Trypsin, 1% taurocholic acid, and 0.3% bile salts were added to the sporozoites, which were then incubated at 39-41 °C for 60- 90 minutes, depending on species. The sporozoites were checked every 30 minutes to determine when most of the sporozoites were free. The sporozoites and debris were washed in Dulbecco’s Modified Eagles Medium (DMEM) (Dulbecco’s, Fischer Scientific) and centrifuged as before to remove excess trypsin. The washing and centrifugation were performed two times, to form pelleted sporozoites. Once recovered, the sporozoites were utilized in assays in the same day.
  • DMEM Modified Eagles Medium
  • Results indicate that various fermentates showed inhibitory effects against the Eimeria tenella sporozoites after incubation using the tracking software to track and analyze the movement and activity of the sporozoite as compared to the control, including those utilized in in vivo analysis in Example 7.
  • bacterial derived fermentates of the various bacterial strains described in Example 1 were prepared in a 20 L stirred bioreactor as follows. Bacterial cultures were grown in TSB (Tryptic Soy Broth) containing the following composition: BactoTM Tryptone (Pancreatic Digest of Casein, Thermo Fisher Scientific, Waltham, MA USA) 17.0 g/L, BactoTM Soytone (Peptic Digest of Soybean Meal, Thermo Fisher Scientific, Waltham, MA USA) 3.0 g/L, glucose 2.5 g/L, sodium chloride 5.0 g/L, and dipotassium hydrogen phosphate 2.5 g/L.
  • Seed culture medium was inoculated with fresh biomass of a single bacterial colony from prepared agar plates using an inoculation loop. Seed cultures were incubated for 18-24 hours in a shaker at 250 rpm, 30 °C and 75% humidity.
  • yeast cultures were grown in YPD Medium (Yeast Extract Peptone Dextrose, Thermo Fisher Scientific, Waltham, MA USA). Overnight seed cultures were generated using 500 ml baffled shake flasks with 100 ml of YPD medium. Seed culture medium was inoculated with fresh biomass of a single yeast colony from prepared agar plates using an inoculation loop. Seed cultures were incubated for 18-24 hours in a shaker at 250 rpm, 30 °C and 75% humidity.
  • YPD Medium Yeast Extract Peptone Dextrose, Thermo Fisher Scientific, Waltham, MA USA. Overnight seed cultures were generated using 500 ml baffled shake flasks with 100 ml of YPD medium. Seed culture medium was inoculated with fresh biomass of a single yeast colony from prepared agar plates using an inoculation loop. Seed cultures were incubated for 18-24 hours in a shaker at 250 rpm, 30 °C and 75% humidity.
  • Working bacterial cultures for obtaining bacterial fermentates were generated using 20 L stirred bioreactors containing 18 L of TSB medium with 0.6% airflow that were inoculated at initial ODeoo of 0.1 using an inoculum from the overnight seed cultures.
  • Working bacterial cultures were incubated in the stirred bioreactor at 500 revolutions per minute (rpm), with a gas flow rate of 0.25 VVM (vessel volume per minute; i.e., 4.5 SLMP (standard liters per minute)), at 30 °C for 24 hours.
  • a 50% solution of anti-foaming agent (Ivanhoe XFO-324K, Ivanhoe Industries, Inc.; Zion, Illinois, USA) was added to the bioreactor at a 0.1% flow rate during the incubation to prevent excess foaming in the bioreactor vessel. Cultures were allowed to mature for an additional 24 hours at 30 °C with no agitation and no airflow.
  • Working yeast cultures for obtaining yeast fermentates were generated using 20 L stirred bioreactors containing 18 L of YPD medium that were inoculated at initial ODeoo of 0.1 using an inoculum from the overnight seed cultures.
  • Working yeast cultures were incubated in the stirred bioreactor at 500 revolutions per minute (rpm), with a gas flow rate of 0.25 VVM (vessel volume per minute; i.e., 4.5 SLMP (standard liters per minute)), at 30 °C for 24 hours.
  • a 100% solution of XFO-324K anti-foaming agent (Ivanhoe Industries, Inc.; Zion, Illinois, USA) was added to the bioreactor including a feedback probe having low to medium sensitivity with a flow pump at 10 % flow rate for 5 second periods during the incubation to prevent excess foaming in the bioreactor vessel.
  • the 18 L volumes of bacterial or yeast fermentates were dried and prepared for storage until use in animal studies. Before drying, each fermentate was mixed with a soy hull (or other suitable) carrier in a 1 : 1 ratio on a dry matter basis. The soy hulls were sized at approximately 1.0 mm in diameter. The fermentates, were then individually mixed thoroughly and dried in an oven at 60 °C. Drying time varied between 24 hours to up to 5 days depending on volume of each fermentate to be dried. After incubation, the dried fermentate mixture was ground using a grinder equipped with a 0.5 mm screen until uniform consistency was achieved.
  • a tracer compound such as a metal oxide
  • a tracer compound was added at to the dried fermentate compositions of approximately 5 g per inclusion rate of product.
  • Fully dried fermentates were stored in polymeric air-tight packaging, labeled, and stored in a -20 °C freezer until use.
  • the birds are provided water and feed ad libitum throughout the study unless otherwise noted.
  • the birds will be observed twice daily for clinical symptoms, and weights of each chicken were recorded on days 0, 14, 28, and 35.
  • Feed will be included in the diet for each treatment group from day 0 of the study.
  • the feed will be weighed in on day 0 and non-consumed feed weighed on days 14, 28, and 35.
  • Feed intake will be calculated from days 0-14, 14-28, 0-28, 0-35, and 28-35.
  • An unmedicated commercial type chicken starter compounded with feedstuffs commonly used in the United States is formulated for daily use as a basal starter feed.
  • Experimental treatment feeds are prepared from the basal starter feed. Quantities of all basal feed and test articles used to prepare treatment batches will be documented. Treatment diets are mixed to assure a uniform distribution of respective fermentate.
  • Average bird weight per pen on days 14, 28, and 35 are to be calculated.
  • the average feed conversion ratio (FCR) will be calculated on approximate study days 14, 28, and 35 (i.e., days 0-14, 14-28, 0-28, 0-35, and 28-35) using the total feed consumption for the pen divided by the total weight of the surviving birds, and as described elsewhere herein. Adjusted feed conversion ratios will be calculated using the total feed consumption in the pen divided by the total weight of surviving birds plus the weight of birds that died or were removed from a respective pen.
  • Eimeria inoculum mixtures will be administered in 1 ml volume by oral gavage on Day 14 to the birds in the infected treatments outlined above.
  • the challenge will include the following amounts of oocy sts per treatment group: approximately 4,000 Eimeria maxima oocysts per bird, approximately 10,000 acervulina Eimeria oocysts per bird, and approximately 2,000 Eimeria tenella oocysts per bird in 1 ml volumes via oral gavage.
  • excreta will be collected from three birds per pen by squeezing the bird’s hind ends. Samples from all three birds will be collected individually and assayed for oocyst counts using the McMasters method or equivalent counting method. Oocysts per gram (OPG) of excreta will be recorded. On days 21 and 28 the three birds assayed for oocyst count will be assayed for ceca lesion presence using lesion scoring methods as discussed elsewhere herein. Morbidity and mortality will also be documented.
  • ppm parts per million
  • percentage percentage
  • ratios are on a by weight basis. Percentage on a by weight basis (%w/w) is also referred to as weight percent (wt.%) or percent by weight (%wt.) herein.

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Abstract

La présente divulgation concerne des compositions d'additif alimentaire et des méthodes associées pour le traitement et la prévention d'une infection par la coccidiose. Les compositions d'additif alimentaire selon l'invention peuvent comprendre un produit de fermentation microbienne. Le produit de fermentation microbienne peut être présent dans la composition d'additif alimentaire en une quantité efficace pour produire un effet inhibiteur contre les protozoaires Eimeria chez un animal. Les compositions d'additif alimentaire selon la divulgation peuvent être efficaces contre une ou plusieurs espèces de protozoaires Eimeria connues pour produire une infection par coccidiose clinique ou une infection par coccidiose subclinique. Les compositions d'additif alimentaire selon la divulgation peuvent produire un effet inhibiteur qui comprend une inhibition directe ou indirecte de la reproduction ou de l'excrétion de protozoaires Eimeria, l'effet inhibiteur contre les protozoaires Eimeria conduisant à un ou plusieurs effets bénéfiques pour l'animal. D'autres aspects sont également inclus dans la description.
PCT/US2023/021890 2022-05-12 2023-05-11 Compositions et méthodes de traitement et de prévention d'une infection par la coccidiose WO2023220275A1 (fr)

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Citations (4)

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US20180207248A1 (en) * 2015-07-09 2018-07-26 Danstar Ferment Ag Compositions and methods for modulating and/or stimulating immune responses in human and/or animal
US20200376015A1 (en) * 2017-07-25 2020-12-03 Dsm Ip Assets B.V. Use of sophorolipids as feed additive
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US20200376015A1 (en) * 2017-07-25 2020-12-03 Dsm Ip Assets B.V. Use of sophorolipids as feed additive
US20210283198A1 (en) * 2020-03-12 2021-09-16 Life Rainbow Biotech Co., Ltd. Method for treating and/or preventing coccidiosis
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