CN113768055A

CN113768055A - Low-emission environment-friendly premix feed for reducing diarrhea rate of piglets, compound feed and preparation method thereof

Info

Publication number: CN113768055A
Application number: CN202110920579.3A
Authority: CN
Inventors: 汤文杰; 李书伟; 刁慧; 魏小兰; 晏家友; 黄崇波; 周梦佳; 何鹏; 钟呈波; 张�杰; 毛驰; 邝声耀
Original assignee: Sichuan Animal Science Biological Development Co ltd; Sichuan Animal Science Academy
Current assignee: Sichuan Animal Science Biological Development Co ltd; Sichuan Animal Science Academy
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2021-12-10

Abstract

The invention discloses a low-emission environment-friendly premix feed for reducing diarrhea rate of piglets, a compound feed and a preparation method thereof. The compound feed comprises the following components in percentage by weight: 42 to 45.2 percent of corn, 10 to 16.7 percent of wheat, 4 to 7 percent of glucose, 4.5 to 9 percent of fast-exploded soybean, 6 to 9 percent of soybean meal, 4 to 7 percent of fermented soybean meal, 3.5 to 7 percent of soybean protein concentrate, 4 to 6 percent of whey powder, 0.8 to 1.5 percent of yeast culture, 1.7 to 2.5 percent of soybean oil and 4.59 to 5.59 percent of low-emission environment-friendly premix feed. The feed prepared by the invention can obviously improve the average daily gain, average daily feed intake and feed-to-weight ratio of piglets, reduce the diarrhea rate of piglets, improve the content of immunoglobulin IgA, IgG and IgM in the serum of piglets, and effectively reduce the content of iron, copper, manganese and zinc in pig manure.

Description

Low-emission environment-friendly premix feed for reducing diarrhea rate of piglets, compound feed and preparation method thereof

Technical Field

The invention belongs to the technical field of feed preparation, and particularly relates to a low-emission environment-friendly premix feed for reducing the diarrhea rate of piglets, a compound feed and a preparation method thereof.

Background

With the continuous development of the pig industry in China, a large amount of pig excreta causes huge pressure on the environment. The trace elements are nutrients necessary for animals, and at present, inorganic trace elements with high dosage are still added into feed in most pig farms in China. However, in the practical application process, the inorganic trace elements have the serious disadvantages of high potential safety hazard, low bioavailability, influence on the intestinal health of animals, product quality, excretion pollution and the like. Researches show that the high-dosage addition of some trace elements can increase the drug resistance risk of livestock and poultry, and meanwhile, the heavy metal content of the produced excrement is high, so that the resource utilization of the excrement is not facilitated, and the risk of environmental pollution is inevitably increased. A large number of research results prove that compared with inorganic trace elements, the organic trace elements have higher safety and bioavailability, can improve the growth performance of animals, enhance the immunologic function, the anti-stress capability and the reproductive performance, reduce the addition of the trace elements, reduce the content of the trace elements in animal excrement and reduce the biological pollution of heavy metals to the environment.

The early weaning technology of the piglets is a main technical means for improving the reproductive performance of sows and saving the feeding cost of the sows in a modern intensive breeding mode. However, early weaning causes severe weaning stress of piglets, and the symptoms of growth retardation, diarrhea rate increase, feed conversion rate reduction and the like are presented, so that the economic benefit of pig producers is seriously influenced. In order to solve the problems, the addition of a large amount of zinc oxide and a high-dose antibiotic is often adopted in the actual production to relieve the weaning stress. However, as China forbids the addition of growth-promoting antibiotics to pig feed in 7/1/2020, the use of antibiotics in pig breeding can only be based on veterinary prescriptions, i.e. can only be used for treating diseases. Meanwhile, China also proposes to limit the addition amount of zinc oxide in the feed.

According to investigation, after resistance in the pig feed is forbidden, the growth performance of piglets is obviously reduced, the diarrhea rate and the death rate are obviously improved, and the dosage of the live pig breeding site is greatly increased. In conclusion, the development of the low-emission environment-friendly premix feed and the compound feed which can stably and reliably relieve the weaning stress of the piglets and reduce the diarrhea rate of the piglets is of great significance.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the low-emission environment-friendly feed for reducing the diarrhea rate of the piglets and the preparation method thereof, and the prepared feed can obviously improve the Average Daily Gain (ADG), the Average Daily Feed Intake (ADFI) and the feed-weight ratio (F/G) of the piglets, reduce the diarrhea rate of the piglets by 63.27%, improve the contents of immunoglobulin IgA, IgG and IgM in the serum of the piglets, and reduce the contents of iron, copper, manganese and zinc in pig manure. Can respectively reduce the contents of iron, copper, manganese and zinc in the feces of the piglets by more than 44.55 percent, 80.99 percent, 34.91 percent and 58.94 percent.

In order to achieve the purpose, the technical scheme adopted by the invention for solving the technical problems is as follows:

a low-emission environment-friendly premix feed for reducing the diarrhea rate of piglets comprises the following components in parts by weight:

120-135 parts of lysine hydrochloride, 35-43 parts of threonine, 18-21 parts of methionine, 7-12 parts of tryptophan, 15-25 parts of valine, 16-22 parts of betaine, 16-22 parts of choline chloride, 9-12 parts of tributyrin, 36-42 parts of benzoic acid, 76-85 parts of sodium chloride, 57-63 parts of a compound acidifier, 36-50 parts of calcium formate, 95-110 parts of calcium lactate, 140-180 parts of monocalcium phosphate, 35-50 parts of modified montmorillonite, 5-8 parts of coated plant essential oil, 8-15 parts of a hawthorn extract, 3-8 parts of rare earth chitosamine, 7-15 parts of bacillus subtilis, 5-10 parts of lysozyme, 6-12 parts of coated tannic acid, 8-12 parts of piglet compound vitamin, 3-6 parts of a compound enzyme preparation, 3-6 parts of phytase, 3-6 parts of a sweetener, 8-13 parts of calcium propionate, 3-6 parts of ethoxyquinoline, 36-46 parts of coated zinc oxide, 5-9 parts of ferrous fumarate, 4-8 parts of zinc lactate, 1-4 parts of copper citrate, 2-5 parts of manganese citrate, 1-4 parts of seleno-amino acid, 0.1-0.4 part of chromium nicotinate, 0.5-1 part of algae iodine, 15-23 parts of silicon dioxide and 30.1-50.1 parts of rice chaff powder.

Further, the paint comprises the following components in parts by weight:

128 parts of lysine hydrochloride, 40 parts of threonine, 20 parts of methionine, 10 parts of tryptophan, 20 parts of valine, 20 parts of betaine, 20 parts of choline chloride, 10 parts of tributyrin, 40 parts of benzoic acid, 80 parts of sodium chloride, 60 parts of compound acidifier, 40 parts of calcium formate, 100 parts of calcium lactate, 160 parts of monocalcium phosphate, 40 parts of modified montmorillonite, 6 parts of coated plant essential oil, 10 parts of hawthorn extract, 5 parts of rare earth chitosamine, 10 parts of bacillus subtilis, 8 parts of lysozyme, 10 parts of coated tannic acid, 10 parts of compound vitamin, 4 parts of complex enzyme preparation, 4 parts of phytase, 4 parts of sweetener, 10 parts of calcium propionate, 4 parts of ethoxyquinoline, 40 parts of coated zinc oxide, 6 parts of ferrous fumarate, 5 parts of zinc lactate, 2 parts of copper citrate, 4 parts of manganese citrate, 3 parts of seleno-amino acid, 0.2 parts of chromium nicotinate, 0.8 parts of algae iodine, 20 parts of silicon dioxide, 20 parts of sodium chloride, and sodium chloride, Rice chaff powder 46.0 parts.

The raw materials used in the invention can be purchased from the market. Wherein, the copper citrate, the zinc lactate, the ferrous fumarate, the manganese citrate, the seleno-amino acid, the chromium nicotinate, the algae iodine, the compound acidifier, the hawthorn extract, the piglet compound vitamin, the calcium formate, the calcium lactate, the calcium dihydrogen phosphate and the defatted rice bran are purchased from livestock feed Limited company in Sichuan province.

The copper content in the copper citrate is more than or equal to 34.5 percent, the copper citrate content is more than or equal to 98.5 percent, and the copper citrate has the characteristics of stable chemical structure, high biological value and double nutritional functions, and is an efficient, safe and environment-friendly animal copper supplement preparation.

Compared with inorganic zinc, the zinc lactate reduces the zinc consumption by more than 35 percent; compared with other organic zinc, the cost of zinc supplement is reduced by more than 50%. The ferrous fumarate can effectively improve the absorption efficiency of iron, and has the nutrition physiological effects of promoting the growth of pigs, regulating the immune function, effectively preventing anemia, improving skin color and hair conditions and the like. Compared with inorganic iron, the product has the advantages of good palatability, stable chemical property and high bioactivity. Compared with other forms of organic iron, the iron-containing composite material does not contain inorganic sulfate ions, has the effective content of ferrous iron as high as 31 percent, and has extremely high cost performance.

Chromium nicotinate can provide trace element chromium, and chromium is a glucose tolerance factor, has the bioactivity similar to insulin, and has an important effect on regulating carbohydrate, fat and protein metabolism; meanwhile, the feed additive is beneficial to the metabolism in the animal body and resists the stress influence. The chemical structure of chromium nicotinate is closest to the active form of chromium glucose tolerance factor in the body. A large number of experiments and application practices show that the effect of the chromium nicotinate is better than or equal to that of other forms of organic chromium, the chromium nicotinate has better bioavailability than chromium from any other sources, and the absorption and retention of the chromium in the chromium nicotinate by a mouse are obviously higher than those of chromium picolinate. Meanwhile, the price of the chromium nicotinate with the same content is only 1/3 of chromium picolinate and 1/4 of yeast chromium, so that the cost performance is extremely outstanding, and the detection is easy.

The manganese citrate is prepared by taking citric acid and manganese oxide as main raw materials through a complexing reaction. The main nutritional physiological role of manganese is as an enzyme activator or component in carbohydrate, lipid, protein and cholesterol metabolism. In addition, manganese is an essential substance for maintaining normal metabolic functions of the brain. The manganese citrate provides a manganese source and citric acid for organisms, and the citric acid is used as an important substrate of tricarboxylic acid cycle and has important physiological and biochemical functions.

The organic iodine of the algae iodine has unique effect, can improve the function of bioactive substances in bodies of piglets, promote the secretion of insulin and adrenergic hormone, improve the activity of lipoprotein esterase, and promote the metabolism and utilization of potassium iodate of glucose and fatty acid in liver, fat and muscle tissues, thereby playing the role of regulating blood sugar metabolism and fat metabolism.

Seleno-ammonia acid is a novel organic selenium, the most important nutrition physiological action of the seleno-ammonia acid is to participate in the composition of glutathione peroxidase, and the seleno-ammonia acid has stronger reduction effect on hydrogen or lipid peroxide in vivo, and protects the structural integrity and normal function of cell membranes. Inorganic selenium is mainly derived from sodium selenite, has high toxicity, is not uniformly mixed in feed, and is easy to cause animal poisoning. Selenoamine compared with inorganic selenium: the utilization form of the seleno-amino acid is consistent with that of the selenium in the animal body, the bioavailability is extremely high, and the detection is easy. Compared with other forms of organic selenium, the organic selenium compound has the advantages of definite structure, stable content, clear metabolic mechanism in animals and the like. Seleno-alanine has the following effects: as a nutrient supplement: supplementing selenium. A large number of researches on enhancing immunity show that selenium influences the immune system mainly by 3 immune modes, namely cellular immunity, humoral immunity and non-specific immunity.

The hawthorn extract is rich in a large amount of natural organic acid, has natural sweet and sour taste, can promote appetite of animals, can relieve stimulation to stomach, can increase bile secretion, and is more favorable for digestion and absorption.

Further, coated zinc oxide and coated plant essential oil were purchased from jin river biotechnology, ltd.

Further, the complex enzyme preparation and phytase are purchased from Haowen pharmaceutical GmbH, Belgium.

Further, lysine hydrochloride, threonine, tryptophan, and valine were purchased from Ningxia Yipin Biotech Ltd.

Further, methionine, silica, purchased from creative moraxel (shanghai) ltd.

Further, calcium propionate was purchased from basf (china) limited.

Further, ethoxyquinoline and betaine were purchased from Tianshi fodder Co., Ltd, Yixing, Inc.

Further, yeast cultures were purchased from dengwei biofermentation technology (shenzhen).

Further, the compound acidifier consists of slow-release phosphoric acid, citric acid, fumaric acid, lactic acid and carrier silicon dioxide, wherein the slow-release phosphoric acid accounts for 10%, the citric acid accounts for 20%, the fumaric acid accounts for 25%, the lactic acid accounts for 15%, and the balance is the carrier silicon dioxide.

Further, the compound vitamins for piglets comprise vitamin A, vitamin D3, vitamin E, vitamin K3, vitamin B1, vitamin B2, vitamin B6, vitamin B12, nicotinamide, calcium pantothenate, folic acid, biotin, ethoxyquinoline and defatted rice bran as a carrier;

the content of each vitamin in each kilogram of piglet compound vitamin is as follows: 3500 million IU of vitamin A, 31000 million IU of vitamin D, 75 g of vitamin E, 310 g of vitamin K, 110 g of vitamin B, 225 g of vitamin B, 615 g of vitamin B, 120.1 g of vitamin B, 100 g of nicotinamide, 56 g of calcium pantothenate, 5.2 g of folic acid, 0.4 g of biotin, 0.5 g of ethoxyquinoline and the balance of defatted rice bran.

The trace elements have the following effects:

(1) the acid has low binding force, and is beneficial to the normal gastric acid environment and the exertion of the effect of the acidifier.

(2) The ions are not easy to dissociate, and have no influence on the activity of digestive enzyme and the acid-base balance and the ion balance of the digestive tract.

(3) Has no damage to digestive tract epithelium and villi, ensures the normal digestive physical environment, improves the digestive ability and the absorption ability, and simultaneously improves the resistance to diseases.

A low-emission environment-friendly compound feed for reducing the diarrhea rate of piglets comprises the following components in percentage by weight:

42-45.2% of corn, 10-16.7% of wheat, 4-7% of glucose, 4.5-9% of quick-fried soybean, 6-9% of soybean meal, 4-7% of fermented soybean meal, 3.5-7% of soybean protein concentrate, 4-6% of whey powder, 0.8-1.5% of yeast culture, 1.7-2.5% of soybean oil and 4.59-5.59% of the low-emission environment-friendly premixed feed.

Further, the paint comprises the following components in percentage by weight:

44% of corn, 12.5% of wheat, 5% of glucose, 7.5% of quick-fried soybean, 8% of soybean meal, 5% of fermented soybean meal, 5% of soybean protein concentrate, 5% of whey powder, 1% of yeast culture, 2% of soybean oil and 5% of the low-emission environment-friendly premixed feed.

The preparation method of the low-emission environment-friendly compound feed comprises the following steps:

(1) screening the corn and the wheat according to the formula, and removing impurities in the corn and the wheat;

(2) crushing corn and wheat to a particle size of 2-3 mm, adding half of soybean oil in the formula, uniformly mixing, and performing extrusion and puffing to obtain a puffed mixture;

(3) mixing the puffed mixture, the quick-fried soybeans, the fermented soybean meal, the soybean protein concentrate, the yeast culture, the balance of soybean oil, the low-emission environment-friendly premixed feed, whey powder and glucose for 3-5 min, uniformly mixing, and tempering at 65-70 ℃ for 1-5 min.

The conditioning can gelatinize starch, modify protein, soften materials, facilitate granulation, improve palatability and stability of the feed, and increase digestibility of the feed.

Furthermore, the extrusion puffing process uses a double-screw extrusion puffing machine, and the puffing parameters are as follows: the diameter of the die hole/the length of the die hole is 1/8, the tempering temperature is 87 ℃, the steam pressure is 0.6MPa, the screw rotating speed is 175r/min, the puffing temperature is 126 ℃, and the feeding speed is 11.5 HZ.

Further, the tempering temperature in the step (3) is 67 ℃, and the time is 1 min.

Further, the method also comprises the step of preparing the product obtained in the step (3) into granules with the length of 6.0mm by using a ring die with the compression ratio of 4.5:1 and the hole diameter of 3.0 mm.

The invention has the beneficial effects that:

1. the raw materials of the low-emission environment-friendly compound feed are selected and processed by utilizing the digestibility of the raw materials and the optimal processing technology. (1) Preferably high-quality raw materials with high digestibility, low antigen and low toxin, such as quick-exploded soybean, fermented soybean meal, soybean protein concentrate, yeast culture, whey powder and glucose; (2) the corn, wheat and bean pulp are pretreated by advanced improved feed processing technology, such as screening, micro-powder, extrusion and puffing, and the like. Particularly, the product quality after extrusion and puffing is higher in the feed puffing process, the loss of heat-sensitive nutrient components can be effectively reduced, the structure and the flavor of feed raw materials can be improved, the starch gelatinization degree can be improved, the anti-nutritional factors can be reduced, the digestibility of the nutrient components of the feed can be improved, and the aim of sterilization can be fulfilled. The proper extrusion and expansion process parameters are beneficial to improving the nutritive value of the feed and improving the digestibility of the animal to the feed nutrients, thereby reducing the discharge of the nutritive substances.

2. The screening of trace elements and vitamins of the low-emission environment-friendly premix feed is carried out by combining the optimal trace element nutrition balance principle with the optimal vitamin nutrition principle. The high-efficiency organic trace elements such as ferrous fumarate, zinc lactate, copper citrate, manganese citrate, seleno-amino acid, chromium nicotinate, iodine seaweed, rare earth chitosamine and the like and the optimal piglet composite vitamins are preferably selected, the piglet intestinal development is promoted, the trace element digestion and absorption rate is improved, and the emission reduction effect of the fecal pollution trace elements is achieved through source decrement and pig body synergy.

3. The optimization of the low-emission environment-friendly premixed feed amino acid and enzyme preparation is carried out by utilizing the principle of 'ideal protein amino acid balance mode' based on a pig net energy system and the pig standard ileum amino acid digestibility and combining with the high-efficiency biological enzyme preparation technology. (1) The synthetic amino acids such as lysine hydrochloride, threonine, methionine, valine and tryptophan which are produced in an economical and efficient industrialized large-scale mode are selected, the protein level of the feed can be effectively reduced, the digestion efficiency of the amino acids is improved, the intestinal load of the pigs is reduced, and therefore digestion and absorption of other nutrient substances are facilitated. And (2) preferably selecting a high-temperature-resistant high-efficiency complex enzyme preparation and a high-temperature-resistant phytase, and further improving the digestibility of the feed.

4. The selection and preparation of low-emission environment-friendly premix feed calcium phosphorus, an acidifier and the like are carried out by utilizing the principle of coupling the acidity of a piglet diet system and the balance of electrolytes. (1) Preferably calcium formate, calcium lactate and calcium dihydrogen phosphate, so as to reduce the influence of common calcium phosphorus sources on the acidity of the feed system; (2) preferably, the compound acidifier is added to supplement the gastric acid hyposecretion of the piglets, promote the activation of endogenous enzymes in the stomach of the piglets and improve the digestion and absorption of nutrient substances; (3) the preferred addition of tributyrin can repair intestinal villi, inhibit intestinal harmful bacteria, and promote absorption and utilization of nutrients. (4) The benzoic acid is preferably added, so that the abnormal microbial fermentation of the hindgut segment is reduced, the diarrhea of the weaned piglets can be effectively controlled, the weaning stress is reduced, and the survival rate and the daily gain are increased.

5. The selection and preparation of the intestinal tract astringent, the immune balancing agent and the intestinal tract microflora regulator of the low-emission environment-friendly premixed feed are carried out by combining the 'pig disease-resistant nutrition principle' with the 'non-resistant accurate nutrition principle'. Preferably, the modified montmorillonite, the coated tannic acid and the coated zinc oxide are converged; preferably, coated plant essential oil, lysozyme, hawthorn extract, betaine and the like are selected for intestinal immune balance regulation; preferably, Bacillus subtilis regulates the intestinal microflora of the offspring. The functions of powerfully inhibiting and killing intestinal pathogenic bacteria, regulating pig intestinal microflora and balancing immunity are achieved, so that the diarrhea of the weaned piglets is effectively controlled.

6. Compared with the products sold in the market, the product prepared by the application can obviously improve the ADG, ADFI and F/G of the piglets, reduce the diarrhea rate of the piglets by 63.27%, improve the content of immunoglobulin IgA, IgG and IgM in the serum of the piglets, and in addition, can also reduce the content of iron, copper, manganese and zinc in pig manure. Can respectively reduce the contents of iron, copper, manganese and zinc in the feces of the piglets by more than 44.55 percent, 80.99 percent, 34.91 percent and 58.94 percent.

Detailed Description

The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.

Example 1

42% of corn, 16.7% of wheat, 4% of glucose, 9% of fast-exploded soybean, 6% of soybean meal, 7% of fermented soybean meal, 3.5% of soybean protein concentrate, 4% of whey powder, 1.1% of yeast culture, 1.7% of soybean oil and 5% of low-emission environment-friendly premixed feed.

The low-emission environment-friendly premix feed comprises the following components in parts by weight:

120 parts of lysine hydrochloride, 35 parts of threonine, 18 parts of methionine, 7 parts of tryptophan, 15 parts of valine, 16 parts of betaine, 16 parts of choline chloride, 12 parts of tributyrin, 42 parts of benzoic acid, 76 parts of sodium chloride, 57 parts of compound acidifier, 50 parts of calcium formate, 110 parts of calcium lactate, 180 parts of monocalcium phosphate, 35 parts of modified montmorillonite, 8 parts of coated plant essential oil, 8 parts of hawthorn extract, 3 parts of rare earth chitosamine, 7 parts of bacillus subtilis, 5 parts of lysozyme, 6 parts of coated tannic acid, 12 parts of compound vitamin, 6 parts of piglet complex enzyme preparation, 3 parts of phytase, 5 parts of sweetener, 8 parts of calcium propionate, 3 parts of ethoxyquinoline, 46 parts of coated zinc oxide, 5 parts of ferrous fumarate, 4 parts of zinc lactate, 4 parts of copper citrate, 3 parts of manganese citrate, 1 part of seleno-amino acid, 0.4 part of chromium nicotinate, 0.5 part of algae iodine, 23 parts of silicon dioxide, 23 parts of sodium chloride, 5 parts of coated plant essential oil, 5 parts of calcium lactate, and calcium lactate, And 50.1 parts of rice chaff powder.

The preparation method of the low-emission environment-friendly compound feed for reducing the diarrhea rate of the piglets comprises the following specific processes:

(1) sieving the national standard first-grade corn and wheat, and removing iron, impurities and mud stones;

(2) respectively crushing corn, wheat and bean pulp by using sieve sheets with the diameter of 2.0mm, adding the crushed materials into a mixer according to the proportion of the invention, simultaneously adding 1% of soybean oil, mixing the materials in the mixer for 2 minutes, and then feeding the mixture into a double-screw extrusion puffing machine, wherein the puffing parameters are as follows: the diameter of the die hole/the length of the die hole is 1/8, the tempering temperature is 87 ℃, the steam pressure is 0.6MPa, the screw rotating speed is 175r/min, the puffing temperature is 126 ℃, and the feeding speed is 11.5 HZ. After the puffing is finished, fully cooling, and crushing by a sieve sheet with the diameter of 1.2mm to obtain a puffed mixture of corn, wheat and bean pulp;

(3) the materials are prepared according to the following sequence: and (2) puffing the mixture, quickly exploding soybeans, fermenting soybean meal, soybean protein concentrate, yeast culture, balancing soybean oil, low-emission environment-friendly composite premixed feed, whey powder and glucose, adding the raw materials into a mixer according to the proportion of the invention, mixing for 3 minutes, tempering at a low temperature of 67 ℃ for 1 minute after uniform mixing, preparing into granules by using a ring die with a compression ratio of 4.5:1 and a pore diameter of 3.0mm, wherein the granules are 6.0mm in length, fully cooling, sieving and packaging to obtain finished granules.

Example 2

42.3% of corn, 13.8% of wheat, 5.3% of glucose, 8.5% of quick-exploded soybean, 7% of soybean meal, 6.5% of fermented soybean meal, 4% of soybean protein concentrate, 4.5% of whey powder, 1.2% of yeast culture, 1.9% of soybean oil and 5% of low-emission environment-friendly premixed feed.

125 parts of lysine hydrochloride, 37 parts of threonine, 19 parts of methionine, 9 parts of tryptophan, 18 parts of valine, 19 parts of betaine, 18 parts of choline chloride, 11 parts of tributyrin, 39 parts of benzoic acid, 81 parts of sodium chloride, 59 parts of compound acidifier, 46 parts of calcium formate, 99 parts of calcium lactate, 170 parts of monocalcium phosphate, 47 parts of modified montmorillonite, 6 parts of coated plant essential oil, 12 parts of hawthorn extract, 5 parts of rare earth chitosamine, 11 parts of bacillus subtilis, 7 parts of lysozyme, 12 parts of coated tannic acid, 8 parts of compound vitamin, 3 parts of complex enzyme preparation, 6 parts of phytase, 4 parts of sweetener, 9 parts of calcium propionate, 4 parts of ethoxyquinoline, 37 parts of coated zinc oxide, 7 parts of ferrous fumarate, 5 parts of zinc lactate, 2 parts of copper citrate, 2 parts of manganese citrate, 3 parts of seleno-amino acid, 0.1 part of chromium nicotinate, 0.9 part of algae iodine, 21 parts of silicon dioxide, and sodium chloride, 38 parts of rice bran powder.

Example 3

42.7% of corn, 13.9% of wheat, 5.5% of glucose, 7% of quick-exploded soybean, 6% of soybean meal, 7% of fermented soybean meal, 5.1% of soybean protein concentrate, 4.0% of whey powder, 1.5% of yeast culture, 2.3% of soybean oil and 5% of low-emission environment-friendly premixed feed.

130 parts of lysine hydrochloride, 39 parts of threonine, 20 parts of methionine, 10 parts of tryptophan, 22 parts of valine, 18 parts of betaine, 19 parts of choline chloride, 10 parts of tributyrin, 38 parts of benzoic acid, 82 parts of sodium chloride, 61 parts of compound acidifier, 39 parts of calcium formate, 101 parts of calcium lactate, 165 parts of monocalcium phosphate, 49 parts of modified montmorillonite, 7 parts of coated plant essential oil, 15 parts of hawthorn extract, 7 parts of rare earth chitosamine, 9 parts of bacillus subtilis, 10 parts of lysozyme, 9 parts of coated tannic acid, 9 parts of piglet compound vitamin, 5 parts of complex enzyme preparation, 4 parts of phytase, 6 parts of sweetener, 11 parts of calcium propionate, 6 parts of ethoxyquinoline, 39 parts of coated zinc oxide, 9 parts of ferrous fumarate, 7 parts of zinc lactate, 1 part of copper citrate, 4 parts of manganese citrate, 2 parts of selenomethionate, 0.3 part of chromium nicotinate, 0.1 part of algae iodine, 19 parts of silicon dioxide, 19 parts of beta-cyclodextrin, 17.6 parts of rice bran powder.

Example 4

45.2% of corn, 10% of wheat, 6% of glucose, 4.5% of quick-fried soybean, 9% of soybean meal, 4% of fermented soybean meal, 7% of soybean protein concentrate, 6% of whey powder, 0.8% of yeast culture, 2.5% of soybean oil and 5% of low-emission environment-friendly premixed feed.

the low-emission environment-friendly premix feed preferably comprises the following components in parts by weight: 135 parts of lysine hydrochloride, 43 parts of threonine, 21 parts of methionine, 12 parts of tryptophan, 25 parts of valine, 22 parts of betaine, 22 parts of choline chloride, 9 parts of tributyrin, 36 parts of benzoic acid, 85 parts of sodium chloride, 63 parts of a compound acidifier, 36 parts of calcium formate, 95 parts of calcium lactate, 140 parts of monocalcium phosphate, 50 parts of modified montmorillonite, 5 parts of coated plant essential oil, 13 parts of hawthorn extract, 8 parts of rare earth chitosamine, 15 parts of bacillus subtilis, 9 parts of lysozyme, 7 parts of coated tannic acid, 11 parts of compound vitamin, 4 parts of a piglet complex enzyme preparation, 5 parts of phytase, 3 parts of a sweetening agent, 13 parts of calcium propionate, 5 parts of ethoxyquinoline, 36 parts of coated zinc oxide, 6 parts of ferrous fumarate, 8 parts of zinc lactate, 3 parts of copper citrate, 5 parts of manganese citrate, 4 parts of seleno-amino acid, 0.2 part of chromium nicotinate, 0.7 part of algae iodine, 15 parts of silicon dioxide, 15 parts of sodium chloride, 6 parts of coated plant essential oil, 6 parts of zinc lactate, 8 parts of calcium lactate, 5 parts of calcium lactate, 4 parts of calcium lactate, 5 parts of modified montmorillonite, 4 parts of composite, 4 parts of calcium lactate, 4 parts of composite acidifier, and the like, 30.1 parts of rice chaff powder.

Example 5

44% of corn, 12.5% of wheat, 5% of glucose, 7.5% of quick-fried soybean, 8% of soybean meal, 5% of fermented soybean meal, 5% of soybean protein concentrate, 5% of whey powder, 1% of yeast culture, 2% of soybean oil and 5% of low-emission environment-friendly premixed feed.

128 parts of lysine hydrochloride, 40 parts of threonine, 20 parts of methionine, 10 parts of tryptophan, 20 parts of valine, 20 parts of betaine, 20 parts of choline chloride, 10 parts of tributyrin, 40 parts of benzoic acid, 80 parts of sodium chloride, 60 parts of compound acidifier, 40 parts of calcium formate, 100 parts of calcium lactate, 160 parts of monocalcium phosphate, 6 parts of coated plant essential oil, 10 parts of hawthorn extract, 5 parts of rare earth chitosamine, 10 parts of bacillus subtilis, 8 parts of lysozyme, 10 parts of coated tannic acid, 10 parts of piglet compound vitamin, 4 parts of compound enzyme preparation, 4 parts of phytase, 4 parts of sweetener, 10 parts of calcium propionate, 4 parts of ethoxyquinoline, 40 parts of coated zinc oxide, 6 parts of ferrous fumarate, 5 parts of zinc, 2 parts of copper citrate, 4 parts of manganese citrate, 3 parts of selenoamine, 0.2 part of chromium nicotinate, 0.8 parts of algae iodine, 40 parts of modified montmorillonite, 20 parts of silicon dioxide, 5 parts of calcium lactate, 5 parts of calcium citrate and the like, And 45.0 parts of rice bran powder.

Test examples

120 21-day-old weaned and healthy DLY castrated piglets (6.52 +/-0.45 kg) are selected for the test, randomly divided into 6 groups, and each group has 20 piglets which are fed in a single column. After 3 days of pre-feeding, 4 weeks positive experiments were performed. The piglet diets of each treatment group were as follows: the trial 1 group was the example 1 formula diet, the trial 2 group was the example 2 formula diet, the trial 3 group was the example 3 formula diet, the trial 4 group was the example 4 formula diet, and the trial 5 group was the example 5 formula diet. The formula of the feed of the control group is as follows: 44% of corn, 12.5% of wheat, 5% of glucose, 7.5% of quick-fried soybean, 8% of soybean meal, 5% of fermented soybean meal, 5% of soybean protein concentrate, 5% of whey powder, 1% of yeast culture, 2% of soybean oil and 5% of a commercially available composite premixed feed.

At the beginning and end of the test, the piglets are weighed on an empty stomach, the feed consumption is recorded by taking the repetition as a unit during the test, and the Average Daily Gain (ADG), the Average Daily Feed Intake (ADFI) and the feed-weight ratio (F/G) are calculated; observing the excrement condition of each pig during the whole test period, and calculating the diarrhea rate of each treated piglet; when the test is finished, selecting 5 piglets from each group for blood sampling, and detecting the concentrations of lysozyme, IgA, IgG and IgM in the serum; at the end of the test, 2 piglets were collected repeatedly each time and the content of copper in the feces was measured.

At the beginning and end of the trial, piglets were weighed on an empty stomach, and during the trial the feed consumption was recorded in repeats, and the Average Daily Gain (ADG), Average Daily Feed Intake (ADFI) and the feed-to-weight ratio (F/G), feed consumption/weight gain, were calculated; during the whole test period, the health condition of the swinery is observed every day, and the diarrhea rate of each piglet is calculated; the diarrhea rate is that the diarrhea rate of the piglet is multiplied by 100 percent/the total head of the piglet;

serum immune autumn protein IgA, IgG and IgM contents, and superoxide dismutase (SOD), Peroxidase (POD), Nitric Oxide Synthase (NOS), glutathione peroxidase (GSH-PX) and total antioxidant power (T-AOC) were measured. The pig manure contains iron, copper, manganese and zinc.

TABLE 1 growth Performance and diarrhea Rate of weaned piglets in each treatment group

The same row in the table is annotated with the same letter to indicate that the difference is not significant (P >0.05) and different letters to indicate that the difference is significant (P < 0.05). SEM: mean of standard error (n ═ 20).

As can be seen from Table 1, the low-emission environment-friendly feed for reducing the diarrhea rate of the piglets provided in the embodiments 1 to 5 is adopted for feeding experiments, compared with a control group, the feed can remarkably improve the growth performance of the weaned piglets, and can reduce the diarrhea rate of the piglets by more than 63.27%

TABLE 2 serum immunoglobulin content of weaned piglets in each treatment group

The same row in the table is annotated with the same letter to indicate that the difference is not significant (P >0.05) and different letters to indicate that the difference is significant (P < 0.05). SEM: mean of standard error (n-5).

As can be seen from Table 2, the low-emission environment-friendly feed for reducing the diarrhea rate of piglets provided in examples 1 to 5 is used for feeding experiments, and compared with a control group, the contents of serum immunoglobulin IgA, IgG and IgM can be remarkably improved.

TABLE 3 anti-oxidation index in the serum of weaned piglets in each treatment group

Note: the same row in the table is annotated with the same letter to indicate that the difference is not significant (P >0.05) and different letters to indicate that the difference is significant (P < 0.05). SEM: mean of standard error (n-5).

As can be seen from Table 3, the low-emission environment-friendly feed for reducing the diarrhea rate of piglets provided in examples 1 to 5 can significantly improve the contents of serum POD, GSH-PX and T-AOC compared with a control group when being used for feeding experiments.

TABLE 4 feces of weaned piglets in each treatment group

As can be seen from Table 4, the low-emission environment-friendly feed for reducing the diarrhea rate of piglets provided in examples 1 to 5 is used for feeding experiments, and compared with a control group, the contents of iron, copper, manganese and zinc in pig manure can be remarkably reduced. Can respectively reduce the contents of iron, copper, manganese and zinc in the excrement by more than 44.55%, 80.99%, 34.91% and 58.94%.

In conclusion, by adopting the compound feed and the low-emission environment-friendly premix feed provided by the invention, the average daily gain can be obviously improved, the feed-to-weight ratio can be obviously reduced, the diarrhea rate of piglets can be obviously reduced by 63.27%, the contents of serum immunoglobulin IgA, IgG and IgM can be obviously improved, and the contents of iron, copper, manganese and zinc in pig manure can be obviously reduced. Can respectively reduce the contents of iron, copper, manganese and zinc in the excrement by more than 44.55%, 80.99%, 34.91% and 58.94%.

Claims

1. The low-emission environment-friendly premix feed for reducing the diarrhea rate of piglets is characterized by comprising the following components in parts by weight:

2. The low-emission environment-friendly premix feed for reducing the diarrhea rate of piglets according to claim 1, which is characterized by comprising the following components in parts by weight:

128 parts of lysine hydrochloride, 40 parts of threonine, 20 parts of methionine, 10 parts of tryptophan, 20 parts of valine, 20 parts of betaine, 20 parts of choline chloride, 10 parts of tributyrin, 40 parts of benzoic acid, 80 parts of sodium chloride, 60 parts of compound acidifier, 40 parts of calcium formate, 100 parts of calcium lactate, 160 parts of monocalcium phosphate, 40 parts of modified montmorillonite, 6 parts of coated plant essential oil, 10 parts of hawthorn extract, 5 parts of rare earth chitosamine and 10 parts of bacillus subtilis, 8 parts of lysozyme, 10 parts of coated tannic acid, 10 parts of piglet compound vitamin, 4 parts of a complex enzyme preparation, 4 parts of phytase, 4 parts of a sweetening agent, 10 parts of calcium propionate, 4 parts of ethoxyquin, 40 parts of coated zinc oxide, 6 parts of ferrous fumarate, 5 parts of zinc lactate, 2 parts of copper citrate, 4 parts of manganese citrate, 3 parts of seleno-amino acid, 0.2 part of chromium nicotinate, 0.8 part of seaweed iodine, 20 parts of silicon dioxide and 46.0 parts of rice chaff powder.

3. The low-emission environment-friendly premix feed for reducing the diarrhea rate of piglets according to claim 1, wherein the compound acidifier comprises slow-release phosphoric acid, citric acid, fumaric acid, lactic acid and carrier silica.

4. The low-emission environment-friendly compound feed for reducing the diarrhea rate of piglets is characterized by comprising the following components in percentage by weight:

42-45.2% of corn, 10-16.7% of wheat, 4-7% of glucose, 4.5-9% of fast-exploded soybean, 6-9% of soybean meal, 4-7% of fermented soybean meal, 3.5-7% of soybean protein concentrate, 4-6% of whey powder, 0.8-1.5% of yeast culture, 1.7-2.5% of soybean oil, and 4.59-5.59% of the low-emission environment-friendly premix feed according to any one of claims 1-3.

5. The low-emission environment-friendly compound feed as claimed in claim 4, which is characterized by comprising the following components in percentage by weight:

44% of corn, 12.5% of wheat, 5% of glucose, 7.5% of fast-exploded soybean, 8% of soybean meal, 5% of fermented soybean meal, 5% of soybean protein concentrate, 5% of whey powder, 1% of yeast culture, 2% of soybean oil and 5% of the low-emission environment-friendly premixed feed as claimed in any one of claims 1 to 3.

6. The preparation method of the low-emission environment-friendly compound feed as claimed in claim 4 or 5, characterized by comprising the following steps:

7. The preparation method of claim 6, wherein the extrusion-puffing process uses a twin-screw extrusion-puffing machine, and the puffing parameters are as follows: the diameter of the die hole/the length of the die hole is 1/8, the tempering temperature is 87 ℃, the steam pressure is 0.6MPa, the screw rotating speed is 175r/min, the puffing temperature is 126 ℃, and the feeding speed is 11.5 HZ.

8. The method according to claim 6, wherein the tempering temperature in the step (3) is 67 ℃ and the time is 1 min.

9. The method according to claim 6, further comprising forming the product obtained in step (3) into pellets having a length of 6.0mm by using a ring mold having a compression ratio of 4.5:1 and a pore diameter of 3.0 mm.