CN116268185A - Feed based on hair hydrolysis waste liquid and preparation method thereof - Google Patents
Feed based on hair hydrolysis waste liquid and preparation method thereof Download PDFInfo
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- CN116268185A CN116268185A CN202310065039.0A CN202310065039A CN116268185A CN 116268185 A CN116268185 A CN 116268185A CN 202310065039 A CN202310065039 A CN 202310065039A CN 116268185 A CN116268185 A CN 116268185A
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Classifications
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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
- A23K10/20—Animal feeding-stuffs from material of animal origin
- A23K10/26—Animal feeding-stuffs from material of animal origin from waste material, e.g. feathers, bones or skin
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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
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
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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
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
- A23K10/37—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material
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- 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
- A23K50/30—Feeding-stuffs specially adapted for particular animals for swines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
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Abstract
The invention discloses a feed based on hair hydrolysis waste liquid and a preparation method thereof, which belong to the technical field of hair hydrolysis waste liquid utilization, and the feed comprises the following components in parts by weight: 1 to 10 parts of hair hydrolysis waste liquid concentrated powder, 1 to 10 parts of astragalus, 1 to 5 parts of mulberry leaf and 200 to 220 parts of basic ration. The feed provided by the invention is particularly pregnant sow feed, the concentrated hair hydrolysis waste liquid powder obtained by hydrolyzing primary mother liquor after extracting cystine from hair with hydrochloric acid, astragalus and mulberry leaves are used as additives, the reproductive performance of sows can be improved, the actual economic benefit is achieved, and a new thought is provided for the secondary comprehensive utilization of the primary mother liquor after extracting cystine from hair by hydrolyzing hydrochloric acid.
Description
Technical Field
The invention relates to the technical field of hair hydrolysis waste liquid utilization, in particular to a feed based on hair hydrolysis waste liquid and a preparation method thereof.
Background
Currently, the industrial cystine preparation mostly adopts a process of hydrolyzing animal hair by hydrochloric acid (simply referred to as a hair hydrolysis process), and the basic process flow of extracting cystine from hair comprises the following steps: firstly, the hair is subjected to hydrochloric acid hydrolysis and primary neutralization to obtain a crude cystine I and primary mother liquor (or primary waste liquor, which contains about 17-18 amino acids), and then arginine is extracted from the primary mother liquor. Although the process extracts arginine from the primary mother liquor after extracting cystine by hydrolyzing hair with hydrochloric acid, the yield of arginine is low, generally only 1-3.5%; meanwhile, the primary mother liquor after arginine extraction cannot be well utilized, so that a large amount of amino acid is lost, and the economic benefit is low.
Disclosure of Invention
The invention aims to provide a feed based on hair hydrolysis waste liquid and a preparation method thereof, and the feed is particularly pregnant sow feed, wherein concentrated hair hydrolysis waste liquid powder, astragalus and mulberry leaves obtained by hydrolyzing primary mother liquid after cystine is extracted from hair by hydrochloric acid are used as additives, so that the reproductive performance of sows can be improved, practical economic benefit is achieved, and a new thought is provided for the secondary comprehensive utilization of the primary mother liquid after cystine is extracted from hair by hydrochloric acid hydrolysis.
In a first aspect, embodiments of the present application provide a feed based on hair hydrolysis waste liquid, the feed comprising, in parts by weight:
1 to 10 parts of hair hydrolysis waste liquid concentrated powder, 1 to 10 parts of astragalus, 1 to 5 parts of mulberry leaf and 200 to 220 parts of basic ration.
Further, the weight ratio of the concentrated powder of the hair hydrolysis waste liquid to the astragalus root to the mulberry leaf is (3-6): 1-3): 1-2.
Further, the weight parts of the concentrated powder of the hair hydrolysis waste liquid, the sum X of the weight parts of the astragalus membranaceus and the weight parts of the mulberry leaves and the weight parts Y of the basic ration satisfy a relation one;
the first relation: X/Y is more than or equal to 0.02 and less than or equal to 0.05.
Further, the preparation method of the hair hydrolysis waste liquid concentrated powder comprises the following steps:
neutralizing primary mother liquor obtained by hydrolyzing hair with hydrochloric acid to extract cystine with alkali to neutrality, and plate-frame filtering to obtain first filtrate;
and filtering the first filtrate by using a nanofiltration membrane, and concentrating and spray-drying to obtain concentrated powder of the hair hydrolysis waste liquid.
Further, the basic ration is corn-soybean meal type ration.
In a second aspect, embodiments of the present application provide a method for preparing the feed according to the first aspect, the method comprising:
pulverizing and mixing radix astragali and folium Mori to obtain Chinese medicinal premix;
soaking the Chinese medicinal premix in water, and performing reduced pressure distillation extraction to obtain distillate and residue-containing residual liquid;
decocting the residual liquid containing the medicinal residues under normal pressure, and filtering to obtain decoction;
combining and concentrating the distillate and the decoction, and then spray-drying to obtain astragalus/mulberry leaf mixed extract powder;
and adding the astragalus/mulberry leaf mixed extract powder and the hair hydrolysis waste liquid concentrated powder into basic ration for mixing to obtain the feed based on the hair hydrolysis waste liquid.
Further, the step of extracting by reduced pressure distillation comprises the following steps: and (3) carrying out reduced pressure distillation at the temperature of 48-52 ℃ and the vacuum degree of 0.18-0.20 Mpa, and stopping the reduced pressure distillation when the volume of distillate is half of the added volume of the water.
Further, the operating parameters of the reduced pressure distillation extraction include: the temperature is 49-51 ℃ and the vacuum degree is 0.19Mpa.
Further, the working parameters of the decoction include: the decoction time is 1-3 hours.
Further, the weight ratio of the water to the Chinese medicinal premix is (20-30): 1, and the soaking time is more than 12 hours.
Compared with the prior art, the scheme provided by the embodiment of the application has at least the following beneficial effects:
the embodiment of the application provides a feed based on hair hydrolysis waste liquid, which is particularly pregnant sow feed, wherein concentrated hair hydrolysis waste liquid powder obtained by hydrolyzing primary mother liquid after extracting cystine from hair with hydrochloric acid, astragalus membranaceus and mulberry leaves are used as additives, various amino acids such as arginine, proline, leucine, lysine, methionine, valine, threonine and the like and unknown growth factors contained in the concentrated hair hydrolysis waste liquid powder are fully utilized, more nutrition is provided for a sow, placenta angiogenesis and development are promoted, and meanwhile, the synergistic effect of astragalus membranaceus polysaccharide and mulberry leaves is matched, so that the influence of stress syndromes such as inappetence, body metabolic disturbance and the like caused by external factors such as supercooling or overheating in summer of the sow is reduced, and normal development of a fetal pig is facilitated. Therefore, the reproductive performance of the sow is obviously improved through the combined action of the concentrated hair hydrolysis waste liquid powder, the astragalus and the mulberry leaf, so that practical economic benefits are brought, and a new thought is provided for the secondary comprehensive utilization of the primary mother liquor after cystine is extracted from the hydrochloric acid hydrolyzed hair.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a preparation method of a feed based on hair hydrolysis waste liquid provided by the embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present invention will be described in detail with reference to specific examples.
The general idea of the technical scheme provided by the embodiment of the invention is as follows:
in a first aspect, embodiments of the present application provide a feed based on hair hydrolysis waste liquid, the feed comprising, in parts by weight:
1 to 10 parts of hair hydrolysis waste liquid concentrated powder, 1 to 10 parts of astragalus, 1 to 5 parts of mulberry leaf and 200 to 220 parts of basic ration.
The embodiment of the application provides a feed based on hair hydrolysis waste liquid, which is particularly pregnant sow feed, wherein concentrated hair hydrolysis waste liquid powder obtained by hydrolyzing primary mother liquid after extracting cystine from hair with hydrochloric acid, astragalus membranaceus and mulberry leaves are used as additives, various amino acids such as arginine, proline, leucine, lysine, methionine, valine, threonine and the like and unknown growth factors contained in the concentrated hair hydrolysis waste liquid powder are fully utilized, more nutrition is provided for a sow, placenta angiogenesis and development are promoted, and meanwhile, the synergistic effect of astragalus membranaceus polysaccharide and mulberry leaves is matched, so that the influence of stress syndromes such as inappetence, body metabolic disturbance and the like caused by external factors such as supercooling or overheating in summer of the sow is reduced, and normal development of a fetal pig is facilitated. Therefore, the reproductive performance of the sow is improved by the combined action of the concentrated hair hydrolysis waste liquid powder, the astragalus and the mulberry leaf, so that practical economic benefit is brought, and a new thought is provided for the secondary comprehensive utilization of the primary mother liquor after cystine is extracted from the hair by hydrochloric acid hydrolysis.
In some specific embodiments, the hair hydrolysis waste concentrate powder may be 1 part, 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, etc. by weight.
In some specific embodiments, the parts by weight of astragalus may be 1 part, 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, etc.
In some specific embodiments, the parts by weight of mulberry leaf may be 1 part, 2 parts, 3 parts, 4 parts, 5 parts, etc.
In some particular embodiments, the parts by weight of the base ration may be 200 parts, 201 parts, 202 parts, 203 parts, 204 parts, 205 parts, 206 parts, 207 parts, 208 parts, 209 parts, 210 parts, 211 parts, 212 parts, 213 parts, 214 parts, 215 parts, 216 parts, 217 parts, 218 parts, 219 parts, 220 parts, and the like.
As an implementation mode of the application example, the weight part ratio of the hair hydrolysis waste liquid concentrated powder, the astragalus membranaceus and the mulberry leaf is (3-6): 1-3): 1-2.
The application finds that when the weight part ratio of the concentrated powder of the hair hydrolysis waste liquid, the astragalus and the mulberry leaf is controlled to be (3-6): 1-3): 1-2, the synergistic effect of the concentrated powder of the hair hydrolysis waste liquid, the astragalus and the mulberry leaf is good, and the reproductive performance of the sow can be obviously improved. Preferably, the weight part ratio of the concentrated hair hydrolysis waste liquid powder to the astragalus root to the mulberry leaf is 4.5:2:1.7.
As an implementation mode of the embodiment of the application, the weight part of the hair hydrolysis waste liquid concentrated powder, the sum X of the weight part of the astragalus membranaceus and the weight part of the mulberry leaf, and the weight part Y of the basic ration satisfy a relation one;
the first relation: X/Y is more than or equal to 0.02 and less than or equal to 0.05.
The application further discovers through a large number of screening experiments that when the total addition amount of the concentrated hair hydrolysis waste liquid powder, the astragalus membranaceus and the mulberry leaves is 2% -5% of the basic ration, the breeding performance of the sow is promoted more favorably.
In the present application, the above-mentioned "X/Y" specifically means a value obtained by dividing "the sum X of the parts by weight of the hair-hydrolyzing waste liquid concentrated powder, the parts by weight of the astragalus membranaceus and the parts by weight of the mulberry leaf" by "the parts by weight of the basic ration Y".
The preparation method of the hair hydrolysis waste liquid concentrated powder comprises the following steps:
neutralizing primary mother liquor obtained by hydrolyzing hair with hydrochloric acid to extract cystine with alkali to neutrality, and plate-frame filtering to obtain first filtrate;
and filtering the first filtrate by using a nanofiltration membrane, and concentrating and spray-drying to obtain concentrated powder of the hair hydrolysis waste liquid.
In the method, primary mother liquor (the pH value is generally about 4.8) obtained by the conventional process for extracting cystine through hydrolyzing hair by hydrochloric acid is neutralized to be neutral by alkali, and then plate and frame filtration is carried out to remove particle impurities and the like, so as to obtain primary filtered first filtrate; then adopting nanofiltration membrane to filter, removing pigment, salt and the like, reducing ash, improving the product quality and the product stability of the concentrated powder of the hair hydrolysis waste liquid, thereby improving the utilization value of the concentrated powder; meanwhile, the concentrated hair hydrolysis waste liquid powder contains various amino acids such as arginine, proline, leucine, lysine, methionine, valine, threonine and the like and unknown growth factors, so that the problem of serious waste of the amino acids in the prior art is avoided, and the utilization rate of the concentrated hair hydrolysis waste liquid powder is effectively improved.
In the present application, operations such as "plate and frame filtration", "nanofiltration membrane filtration", "spray drying" related to the preparation method of the hair hydrolysis waste liquid concentrated powder may be performed according to the prior art disclosed in the art and by using the existing separation device if no particular description and limitation are provided, and the description of the present application is not repeated.
As an implementation mode of the embodiment of the application, the basic ration is corn-soybean meal type ration.
The base ration employed in the present application may be a conventional corn-soybean meal ration as disclosed in the art. In some embodiments, the formulation of the corn-soybean meal type ration may include: 40-70wt% of corn, 10-35wt% of wheat bran (or rice bran), 15-30wt% of soybean meal and the like.
In a second aspect, an embodiment of the present application provides a method for preparing the feed according to the first aspect, as shown in fig. 1, where the method includes:
pulverizing and mixing radix astragali and folium Mori to obtain Chinese medicinal premix;
soaking the Chinese medicinal premix in water, and performing reduced pressure distillation extraction to obtain distillate and residue-containing residual liquid;
decocting the residual liquid containing the medicinal residues under normal pressure, and filtering to obtain decoction;
combining and concentrating the distillate and the decoction, and then spray-drying to obtain astragalus/mulberry leaf mixed extract powder;
and adding the astragalus/mulberry leaf mixed extract powder and the hair hydrolysis waste liquid concentrated powder into basic ration for mixing to obtain the feed based on the hair hydrolysis waste liquid.
The mixed material of the astragalus and the mulberry leaves is subjected to reduced pressure distillation firstly, and then the mixed extract powder of the astragalus and the mulberry leaves is decocted, so that the polysaccharide content in the obtained mixed extract powder of the astragalus and the mulberry leaves is rich, the quality of the effective components is improved, and the effect of the mixed extract powder on reducing the influence of the sow stress syndrome is improved.
As an implementation of the embodiment of the present application, the step of extracting by reduced pressure distillation includes: and (3) carrying out reduced pressure distillation at the temperature of 48-52 ℃ and the vacuum degree of 0.18-0.20 Mpa, and stopping the reduced pressure distillation when the volume of distillate is half of the added volume of the water.
The embodiment of the application adopts the reduced pressure distillation extraction under specific conditions (48-52 ℃ and 0.18-0.20 Mpa vacuum degree), and the obtained astragalus/mulberry leaf mixed extract powder has good quality. Preferably, the temperature of the reduced pressure distillation extraction is 49-51 ℃ and the vacuum degree is 0.19Mpa.
As an implementation of the embodiment of the present application, the working parameters of the decoction include: the decoction time is 1-3 hours.
In some embodiments, the time of the decoction may be 1 hour, 2 hours, 3 hours, etc.
As an implementation mode of the application example, the weight ratio of the water to the Chinese medicinal premix is (20-30) 1, and the soaking time is more than 12 hours.
In some specific embodiments, the weight ratio of the water to the Chinese herbal premix is preferably 25:1; the soaking time is preferably 24 hours.
The features and capabilities of the present invention are described in further detail below in connection with the examples.
Examples 1 to 15 provide a feed based on hair hydrolysis waste liquid, comprising, in parts by weight (unit: kg):
1 to 10 parts of hair hydrolysis waste liquid concentrated powder, 1 to 10 parts of astragalus, 1 to 5 parts of mulberry leaf and 200 to 220 parts of basic ration;
the preparation method of the hair hydrolysis waste liquid concentrated powder comprises the following steps:
neutralizing primary mother liquor obtained by hydrolyzing hair with hydrochloric acid to extract cystine with alkali to neutrality, and plate-frame filtering to obtain first filtrate;
adopting a commercial nanofiltration membrane as a separation medium and the existing membrane separation, membrane concentration and spray drying equipment, filtering the first filtrate by the nanofiltration membrane, evaporating and concentrating until the solid content is 24wt%, and finally spray drying to obtain concentrated powder of hair hydrolysis waste liquid;
the basic ration is commercially available corn-soybean meal type ration, and comprises the following main components: 15wt% of soybean meal, 70wt% of corn meal, 12wt% of rice bran, 1.0wt% of calcium hydrophosphate, 0.8wt% of shell powder, 0.35wt% of salt and the like.
The preparation method of the feed provided in the above examples 1 to 15 comprises the following steps:
pulverizing and mixing radix astragali and folium Mori to obtain Chinese medicinal premix;
soaking the traditional Chinese medicine premix in water for 24 hours by adopting the existing reduced pressure distillation equipment, then performing reduced pressure distillation at 48 ℃ under the vacuum degree of 0.18Mpa, and stopping the reduced pressure distillation when the volume of the distillate is half of the added volume of the water to obtain the distillate and the residual feed liquid containing dregs;
decocting the residue material liquid containing the residue for 2 hours under normal pressure, and filtering to obtain decoction;
combining the distillate and the decoction by adopting the existing concentration equipment and spray drying equipment, concentrating the distillate to obtain a solid content of 24wt%, and finally spray drying to obtain astragalus membranaceus/mulberry leaf mixed extract powder;
and adding the astragalus/mulberry leaf mixed extract powder and the hair hydrolysis waste liquid concentrated powder into basic ration for mixing to obtain the feed based on the hair hydrolysis waste liquid.
The specific amounts of each component in examples 1-15 are shown in Table 1. Wherein, in table 1: x is the sum of the weight parts of the concentrated powder of the hair hydrolysis waste liquid, the weight parts of the astragalus membranaceus and the weight parts of the mulberry leaves; y is the weight part of the basic ration; "X/Y" is a value obtained by dividing "the sum of the weight parts of the hair-hydrolyzing waste liquid concentrated powder, the weight parts of the astragalus membranaceus and the weight parts of the mulberry leaves" by "the weight parts of the basic ration Y".
TABLE 1
Example 16
This example provides a feed based on hair hydrolysis waste liquid and a preparation method thereof, which differ from example 15 only in that: the temperature of the reduced pressure distillation extraction for preparing the astragalus/mulberry leaf mixed extract powder is adjusted to 50 ℃ and the vacuum degree is 0.19Mpa; the rest steps and parameters are the same.
Comparative example 1
This example provides a feed and a method for its preparation, which differs from example 15 only in that: replacing the concentrated hair hydrolysis waste liquid powder with arginine, and correspondingly omitting the preparation process of the concentrated hair hydrolysis waste liquid powder; the rest steps and parameters are the same.
Comparative example 2
This example provides a feed and a method for its preparation, which differs from example 15 only in that: adjusting the dosage of the astragalus to 0 part (i.e. astragalus is not added); the rest steps and parameters are the same.
Comparative example 3
This example provides a feed and a method for its preparation, which differs from example 15 only in that: adjusting the dosage of folium Mori to 0 part (i.e. folium Mori is not added); the rest steps and parameters are the same.
Comparative example 4
This example provides a feed and a method for its preparation, which differs from example 15 only in that: the temperature of the reduced pressure distillation extraction for preparing the astragalus/mulberry leaf mixed extract powder is adjusted to 65 ℃ and the vacuum degree is 0.06Mpa; the rest steps and parameters are the same.
Test case
The 210 pregnant sows were randomly divided into 21 groups of 10, each group was divided into a normal feeding group (1 group in total, only basic ration of the same formulation was fed) and an experimental group (20 groups in total, pregnant sows were fed with feeds prepared according to examples 1 to 16 and comparative examples 1 to 4, respectively), and the feeding method was as follows: feeding for 1 time every day, and starting feeding after mating: 1 to 3 days after mating, the feed supply amount is 1.8 kg; the feed supply amount is 2.0 kg 4-30 days after mating; the feed supply amount is 2.8 kg 31-90 days after mating; the feed supply amount is 3.8 kg from 91 days after mating to delivery; throughout this period, water is supplied periodically, and external environmental factors such as temperature are maintained under appropriate conditions.
After the end of the delivery, the number of piglets per litter (calculated as the number of surviving piglets) and the weight of the piglets born (calculated as the number of surviving piglets) were counted and the average number of piglets per litter (calculated as the number of surviving piglets) and the average weight of the piglets born (calculated as the number of surviving piglets) were calculated for each group, and the results are shown in table 3.
TABLE 3 Table 3
As can be seen from table 3, the feed based on hair hydrolysis waste liquid provided in the examples of the present application improves reproductive performance of sows, and is significantly superior to comparative examples 1 to 4; meanwhile, the effects of example 4, example 5, example 7, example 11, example 14, example 15, example 16 and the like are better, which shows that the obtained feed has better effect of promoting the reproductive performance of the sow when the weight ratio is (3-6): (1-3): (1-2) of concentrated powder of hair hydrolysis waste liquid, astragalus root and mulberry leaf and the addition amount is controlled to be 2-5 wt% of the daily ration.
In summary, the embodiment of the application provides a feed based on hair hydrolysis waste liquid, which is specifically a pregnant sow diet, wherein concentrated hair hydrolysis waste liquid powder obtained by hydrolyzing primary mother liquid after cystine is extracted from hair by hydrochloric acid, astragalus and mulberry leaf are used as additives, various amino acids such as arginine, proline, leucine, lysine, methionine, valine, threonine and the like and unknown growth factors contained in the concentrated hair hydrolysis waste liquid powder are fully utilized, more nutrition is provided for a sow to a fetus, placenta angiogenesis and development are promoted, and meanwhile, the synergistic effect of astragalus polysaccharide and mulberry leaf are matched, so that the influence of stress syndromes such as inappetence, body metabolic disorder and the like caused by external factors such as supercooling in winter or overheat in summer of the sow is reduced, and normal development of the pregnant sow is facilitated. Therefore, the reproductive performance of the sow is obviously improved through the combined action of the concentrated hair hydrolysis waste liquid powder, the astragalus and the mulberry leaf, so that practical economic benefits are brought, and a new thought is provided for the secondary comprehensive utilization of the primary mother liquor after cystine is extracted from the hydrochloric acid hydrolyzed hair.
Various embodiments of the present application may exist in a range format; it should be understood that the description in a range format is merely for convenience and brevity and should not be interpreted as a rigid limitation on the scope of the application. It is therefore to be understood that the range description has specifically disclosed all possible sub-ranges and individual values within that range. For example, it should be considered that a description of a range from 1 to 6 has specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., as well as single numbers within the range, such as 1, 2, 3, 4, 5, and 6, wherever applicable. In addition, whenever a numerical range is referred to herein, it is meant to include any reference number (fractional or integer) within the indicated range.
In addition, in the description of the present application, the terms "include", "comprise", "comprising" and the like mean "including but not limited to". Relational terms such as "first" and "second", and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The embodiments described above are some, but not all embodiments of the invention. The detailed description of the embodiments of the invention is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Claims (10)
1. A feed based on hair hydrolysis waste liquid, which is characterized by comprising, in parts by weight:
1 to 10 parts of hair hydrolysis waste liquid concentrated powder, 1 to 10 parts of astragalus, 1 to 5 parts of mulberry leaf and 200 to 220 parts of basic ration.
2. The feed of claim 1, wherein the weight ratio of the concentrated hair hydrolysis waste powder to the astragalus root to the mulberry leaf is (3-6): 1-3): 1-2.
3. The feed of claim 1, wherein the weight part of the hair hydrolysis waste liquid concentrated powder, the sum X of the weight part of the astragalus membranaceus and the weight part of the mulberry leaf, and the weight part Y of the basic ration satisfy a relation one;
the first relation: X/Y is more than or equal to 0.02 and less than or equal to 0.05.
4. A feed according to any one of claims 1 to 3, wherein the process for preparing the hair hydrolysis waste concentrate comprises:
neutralizing primary mother liquor obtained by hydrolyzing hair with hydrochloric acid to extract cystine with alkali to neutrality, and plate-frame filtering to obtain first filtrate;
and filtering the first filtrate by using a nanofiltration membrane, and concentrating and spray-drying to obtain concentrated powder of the hair hydrolysis waste liquid.
5. A feed according to any one of claims 1 to 3, wherein the base ration is a corn-soybean meal ration.
6. A method of preparing the feed of any one of claims 1 to 5, comprising:
pulverizing and mixing radix astragali and folium Mori to obtain Chinese medicinal premix;
soaking the Chinese medicinal premix in water, and performing reduced pressure distillation extraction to obtain distillate and residue-containing residual liquid;
decocting the residual liquid containing the medicinal residues under normal pressure, and filtering to obtain decoction;
combining and concentrating the distillate and the decoction, and then spray-drying to obtain astragalus/mulberry leaf mixed extract powder;
and adding the astragalus/mulberry leaf mixed extract powder and the hair hydrolysis waste liquid concentrated powder into basic ration for mixing to obtain the feed based on the hair hydrolysis waste liquid.
7. The method according to claim 6, wherein the step of extracting by distillation under reduced pressure comprises: and (3) carrying out reduced pressure distillation at the temperature of 48-52 ℃ and the vacuum degree of 0.18-0.20 Mpa, and stopping the reduced pressure distillation when the volume of distillate is half of the added volume of the water.
8. The method according to claim 6, wherein the operating parameters of the reduced pressure distillation extraction include: the temperature is 49-51 ℃ and the vacuum degree is 0.19Mpa.
9. The method of claim 6, wherein the operating parameters of the decoction include: the decoction time is 1-3 hours.
10. The method according to claim 6, wherein the weight ratio of the water to the premix of the Chinese medicinal materials is (20-30): 1, and the soaking time is > 12 hours.
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