AU2021106804A4 - Low-emission environment-friendly premixed feed for reducing diarrhea rate of piglets, compound feed and preparation method thereof - Google Patents

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

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AU2021106804A4
AU2021106804A4 AU2021106804A AU2021106804A AU2021106804A4 AU 2021106804 A4 AU2021106804 A4 AU 2021106804A4 AU 2021106804 A AU2021106804 A AU 2021106804A AU 2021106804 A AU2021106804 A AU 2021106804A AU 2021106804 A4 AU2021106804 A4 AU 2021106804A4
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Prior art keywords
parts
feed
low
piglets
friendly
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AU2021106804A
Inventor
Hui Diao
Peng HE
Chongbo Huang
Shengyao Kuang
Shuwei Li
Chi MAO
Wenjie TANG
Xiaolan Wei
Jiayou Yan
Jie Zhang
Chengbo Zhong
Mengjia Zhou
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Sichuan Academy Of Animal Science
Sichuan Animtech Biological Development Co Ltd
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Sichuan Acad Of Animal Science
Sichuan Animtech Biological Development Co Ltd
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Assigned to Sichuan Academy of Animal Science, Sichuan Animtech Biological Development Co., Ltd reassignment Sichuan Academy of Animal Science Amend patent request/document other than specification (104) Assignors: Sichuan Academy of Animal Science, Sichuan Xuke Biological Development Co. LTD
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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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    • 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
    • A23K10/18—Addition of microorganisms or extracts thereof, e.g. single-cell proteins, to feeding-stuff compositions of live microorganisms
    • A—HUMAN NECESSITIES
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Abstract

The present invention discloses a low-emission environment-friendly premixed feed for reducing a diarrhea rate of piglets, a compound feed and a preparation method thereof. The compound feed comprises the following components by weight percentage: 42%-45.2% of corn, 10%-16.7% of wheat, 4%-7% of glucose, 4.5%-9% of quick-exploded soybeans, 6%-9% of soybean meal, 4%-7% of fermented soybean meal, 3.5%-7% of soy 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 low-emission environment-friendly premixed feed. The feed prepared by the present invention can significantly improve the average daily gain, average daily feed intake and feed-to-weight ratio of piglets, reduce the diarrhea rate of the piglets, increase the contents of serum immunoglobulins IgA, IgG and IgM in the piglets, and effectively reduce the contents of iron, copper, manganese and zinc in pig feces.

Description

Description
LOW-EMISSION ENVIRONMENT-FRIENDLY PREMIXED FEED FOR REDUCING DIARRHEA RATE OF PIGLETS, COMPOUND FEED AND PREPARATION METHOD THEREOF
Technical Field
The present invention belongs to the technical field of feed preparation, and particularly relates
to a low-emission environment-friendly premixed feed for reducing a diarrhea rate of piglets, a
compound feed and a preparation method thereof.
Background
China is the country with the largest pig farming scale in the world as well as the country with
the largest pork consumption in the world. With the continuous development of pig industry in
China, a large amount of live pig excrement has put tremendous pressure on the environment. Trace
elements are essential nutrients for animals. At present, most of pig farms in China still add high
doses of inorganic trace elements to the feed. However, it is discovered in the process of practical
application that the inorganic trace elements have serious disadvantages of high potential safety
hazard, low bioavailability, influence on animal intestinal health and product quality, and excretion
pollution. Studies show that high-dose addition of certain trace elements will increase the risk of
drug resistance in livestock and poultry. At the same time, high content of heavy metals in generated
feces is not conducive to the resource utilization of the feces and inevitably increases the risk of
environmental pollution. A large number of research results confirm that compared with the
inorganic trace elements, organic trace elements have higher safety and bioavailability, can improve
animal growth performance, enhance immune functions, anti-stress ability and reproductive
performance, can reduce the addition amount of the trace elements, reduce the content of the trace
elements in animal excrement and reduce the biological pollution of the heavy metals to the
environment.
The early weaning technology of piglets is a main technical means to improve the reproductive
performance of sows and save the feeding cost of the sows in the modem intensive breeding mode.
However, early weaning will cause severe weaning stress for the piglets, manifested by symptoms
of growth retardation, increased diarrhea rate and low feed conversion rate, thereby seriously
affecting the economic benefits of pig producers. In order to solve such problems, in the actual
production, high doses of zinc oxide and high doses of antibiotics are often added to alleviate the
weaning stress. However, as China banned the addition of growth-promoting antibiotics in the pig
Description
feed on July 1, 2020, the antibiotics can only be used in pig breeding based on veterinary
prescriptions, i.e., can only be used to treat diseases. Meanwhile, the limitation to the addition dose
of the zinc oxide in the feed is also put on the agenda in China.
The survey shows that after the ban on the pig feed, the growth performance of the piglets is
significantly reduced, the diarrhea rate and mortality are significantly increased, and the site doses
in pig breeding are increased significantly. In conclusion, it is of great significance to develop a
low-emission environment-friendly premixed feed and a compound feed that can stably and reliably
alleviate piglet weaning stress and reduce the diarrhea rate of the piglets.
Summary
In view of the above defects in the prior art, the present invention provides low-emission
environment-friendly feeds for reducing a diarrhea rate of piglets and a preparation method thereof.
The feed prepared by the present invention can significantly improve the average daily gain (ADG),
average daily feed intake (ADFI) and feed-to-weight ratio (F/G) of piglets, reduce the diarrhea rate
63.27% of the piglets, increase the contents of serum immunoglobulins IgA, IgG and IgM in the
piglets, and reduce the contents of iron, copper, manganese and zinc in pig feces. The contents of
the iron, the copper, the manganese and the zinc in the pig feces can be reduced respectively by
more than 44.55%, 80.99%, 34.91% and 58.94%.
To achieve the above purpose, the present invention adopts the following technical solution to
solve the technical problems:
A low-emission environment-friendly premixed feed for reducing a 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 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 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 multivitamins, 3-6 parts of complex enzyme preparation, 3-6 parts of phytase, 3-6 parts of
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
Description
parts of manganese citrate, 1-4 parts of selenocysteine, 0.1-0.4 part of chromium nicotinate, 0.5-1
part of seaweed iodine, 15-23 parts of silicon dioxide and 30.1-50.1 parts of rice chaff powder.
Further, the premixed feed 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,
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 piglet multivitamins, 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 selenocysteine, 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.
The raw materials used in the present invention are commercially available. The copper citrate,
the zinc lactate, the ferrous fumarate, the manganese citrate, the selenocysteine, the chromium
nicotinate, the seaweed iodine, the compound acidifier, the hawthorn extract, the piglet
multivitamins, the calcium formate, the calcium lactate, the calcium phosphate and defatted rice
bran are purchased from Sichuan Animtech Feed Co.,Ltd.
In the copper citrate, copper content is >34.5% and copper citrate content is >98.5%. The
copper citrate has the characteristics of stable chemical structure and high biological potency and
"dual" nutritional functions, and is an efficient, safe and environment-friendly animal copper
supplement.
Compared with inorganic zinc, the zinc lactate reduces the amount of zinc by more than 35%;
and compared with other organic zinc, the cost of zinc supplementation is reduced by more than
%. The ferrous fumarate can effectively increase the absorption efficiency of the iron, and has the
nutritional and physiological effects of promoting pig growth, regulating immune functions,
effectively preventing anemia and improving skin colors and hair conditions. Compared with
inorganic iron, the ferrous fumarate has the characteristics of good palatability, stable chemical
properties and high biological activity. Compared with other forms of organic iron, the ferrous
fumarate does not contain inorganic sulfate ions, and the effective content of divalent iron is as high
Description
as 31%, which is extremely cost-effective.
The chromium nicotinate can provide trace element chromium. Chromium is a glucose
tolerance factor and has biological activity similar to insulin. Chromium plays an important role in
regulating the metabolism of carbohydrates, lipids and proteins,and also helps metabolism of
animals and resists stress. The chemical structure of the chromium nicotinate is closest to the
glucose tolerance factor in the active form of chromium 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
any other sources of chromium. Mice absorb and retain more chromium in the chromium nicotinate
than chromium picolinate. At the same time, the price of the same content of chromium nicotinate is
only 1/3 of that of the chromium picolinate and 1/4 of that of chromium yeast, and chromium
nicotinate is extremely cost-effective and easy to detect.
The manganese citrate is prepared from citric acid and manganese oxide as main raw materials
through a complexation reaction. The main nutritional and physiological effect of manganese is to
act as an enzyme activator or component in the metabolism of carbohydrates, lipids, protein and
cholesterol. In addition, manganese is an essential substance for maintaining the normal metabolic
function of the brain. The manganese citrate provides the body with citric acid while providing a
manganese source. As an important substrate of the tricarboxylic acid cycle, the citric acid has
important physiological and biochemical functions.
The organic iodine of the seaweed iodine has unique effects, and can enhance the functions of
biologically active substances in the piglets, promote the secretion of insulin and adrenal hormones,
increase the activity of lipoproteinesterase and promote potassium iodate metabolism and use of
glucose and fatty acid in livers, lipids and muscle tissue to perform the effects of regulating blood
sugar metabolism and lipid metabolism.
The selenocysteine is a novel organic selenium. The most important nutritional and
physiological effect is to participate in the composition of glutathione peroxidase, which has a
strong reduction effect on hydrogen or lipid peroxides in the body, and protects the structural
integrity and normal function of cell membranes. The main source of inorganic selenium is sodium
selenite, which is highly toxic uneven in mixing in the feed, thereby easily leading to animal
poisoning. Compared with inorganic selenium: the use form of selenium in the selenocysteine is
consistent with that of selenium in animals, and the selenocysteine has extremely high
Description
bioavailability and easy detection. Compared with other forms of organic selenium, the
selenocysteine has the advantages of clear structure, stable content and clear metabolism
mechanism in the animals. The selenocysteine has the following effects: as a nutrient supplement:
the selenocysteine supplements the trace element selenium. A large number of studies on enhancing
immunity show that the selenium mainly affects immune systems in three immune modes: cellular
immunity, humoral immunity and nonspecific immunity.
The hawthorn extract is rich in a large number of natural organic acids, has natural sweet and
sour tastes, increases animal appetite, relieves irritation to stomach, increases bile secretion, and is
more conducive to digestion and absorption.
Further, coated zinc oxide and coated plant essential oil are purchased from Jinhe
Biotechnology Co., Ltd.
Further, the compound enzyme preparation and the phytase are purchased from Belgium
Huvepharma Co., Ltd.
Further, the lysine hydrochloride, the threonine, the tryptophan and the valine are purchased
from Ningxia Yipin Biotechnology Co., Ltd.
Further, the methionine and the silicon dioxide are purchased from Evonik Degussa Specialty
Chemicals (Shanghai) Co., Ltd.
Further, the calcium propionate is purchased from BASF (China) Co., Ltd.
Further, the ethoxyquin and the betaine are purchased from Yixing Tianshi Feed Co., Ltd.
Further, the yeast culture is purchased from Diamond V Biological Fermentation Technology
(Shenzhen) Co., Ltd.
Further, the compound acidifier is composed 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 piglet multivitamins include vitamin A, vitamin D3, vitamin E, vitamin K3,
vitamin B1, vitamin B2, vitamin B6, vitamin B12, nicotinamide, calcium pantothenate, folic acid,
biotin, ethoxyquin and a carrier of defatted rice bran.
The content of various vitamins in each kilogram of piglet multivitamins is: 35 million IU of
vitamin A, 310 million IU of vitamin D, 75 g of vitamin E, 10 g of vitamin K3, 10 g of vitamin B1,
g of vitamin B2, 15 g of vitamin B6, 0.1 g of vitamin B12, 100 g of nicotinamide, 56 g of
Description
calcium pantothenate, 5.2 g of folic acid, 0.4 g of biotin, 0.5 g of ethoxyquin and the balance of
defatted rice bran.
The above trace elements have the following effects:
(1) The acid binding power is low, which is conducive to the normal gastric acidic
environment and the effect of the acidifier.
(2) Ions are difficult to be dissociated, have no effect on the activity of digestive enzymes, and
have no effect on the acid-base balance and ion balance of the digestive tract.
(3) The epithelium and villi of the digestive tract are not damaged, which ensures the normal
digestive physical environment, improves digestion and absorption and enhances resistance to
diseases.
A low-emission environment-friendly compound feed for reducing a diarrhea rate of piglets
comprises the following components by weight percentage:
42%- 4 5. 2 % of corn, 10%-16.7% of wheat, 4%-7% of glucose, 4.5%-9% of quick-exploded
soybeans, 6%-9% of soybean meal, 4%-7% of fermented soybean meal, 3.5%-7% of soy 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 feed comprises the following components by weight percentage:
44% of corn, 12.5% of wheat, 5% of glucose, 7.5% of quick-exploded soybeans, 8% of
soybean meal, 5% of fermented soybean meal, 5% of soy protein concentrate, 5% of whey powder,
1% of yeast culture, 2% of soybean oil and 5% of the low-emission environment-friendly premixed
feed.
A preparation method of the low-emission environment-friendly compound feed comprises the
following steps:
(1) screening the corn and the wheat according to a formula to remove sundries therein;
(2) crushing the corn and the wheat to a particle size of 2-3mm, then adding half of the
soybean oil used in the formula, mixing uniformly, and then squeezing and expanding the mixture
to obtain an expanded mixture;
(3) mixing the expanded mixture, the quick-exploded soybeans, the fermented soybean meal,
the soybean protein concentrate, the yeast culture, remaining soybean oil, the low-emission
environment-friendly premixed feed, the whey powder and the glucose for 3-5 min, mixing
uniformly and then quenching and tempering the mixture at 65-70°C for 1-5 min.
Description
Through quenching and tempering, the starch is gelatinized, the protein is denatured and the
materials are softened to facilitate pelletization. At the same time, the palatability and stability of
the feed can be improved, and the digestibility of the feed are increased.
Further, the squeezing and expanding process uses a twin-screw extruder, and has expanding
parameters: die hole diameter/die hole length of 1/8, quenching and tempering temperature of 87C,
steam pressure of 0.6MPa, screw speed of 175r/min, expanding temperature of 126°C and feeding
speed of 11.5HZ.
Further, in the step (3), the quenching and tempering temperature is 67C, and the time is 1
min.
Further, the preparation method further comprises adopting a ring die with a compression ratio
of 4.5:1 and an aperture of 3.0 mm to make the product obtained in the step (3) into particles with a
length of 6.0 mm.
The present invention has the following beneficial effects:
1. The raw materials of the low-emission environment-friendly compound feed are selected
and processed through the digestibility of the raw materials and the optimal processing technology.
(1) High-quality raw materials with high digestibility, low antigen and low toxin, such as
quick-exploded soybeans, fermented soybean meal, soybean protein concentrate, yeast culture,
whey powder and glucose, are preferred. (2) The advanced and improved feed processing
technologies, such as screening, micronized powder and squeezing and expanding, are used for
preprocessing the corn, the wheat and the soybean meal. Especially, the feed expansion technology
is used. The product quality after squeezing and expanding is higher, which can effectively reduce
the loss of heat-sensitive nutrients, improve the structure and the flavor of the feed raw materials,
increase starch gelatinization, reduce anti-nutritional factors and achieve the purpose of sterilization
while increasing the digestibility of feed nutrients. Appropriate squeezing and expanding
technological parameters are conducive to improving the nutritional value of the feed and
increasing the digestibility of animals for feed nutrients, thereby reducing the emission of the
nutrients.
2. The trace elements and the vitamins of the low-emission environment-friendly premixed
feed are selected through the combination of the "optimal trace element nutrition balance principle"
and the "optimal vitamin nutrition principle". High-efficiency organic trace elements such as ferrous
fumarate, zinc lactate, copper citrate, manganese citrate, selenocysteine, chromium nicotinate,
Description
seaweed iodine and rare earth glucosamine, and the optimal piglet multivitamins are preferred to promote piglet intestinal development, increase the digestibility of the trace elements and achieve the effect of reducing the emission of trace elements in feces by reducing the amount at the source and increasing the efficiency of pigs. 3. The amino acid and enzyme preparations of the low-emission environment-friendly premixed feed are preferred using the principle of "ideal protein and amino acid balance mode" based on the pig net energy system and the pig standard ileal amino acid digestibility in combination with high-efficiency biological enzyme preparation technology. (1) Economical and efficient synthetic amino acids produced in industrial large scale, such as lysine hydrochloride, threonine, methionine, valine and tryptophan, are selected, which can effectively reduce the level of feed protein, increase the digestive efficiency of the amino acid and reduce intestinal burden of the piglets, thereby facilitating the digestion and absorption of other nutrients. (2) High-temperature resistant and high-efficiency composite enzyme preparations and high-temperature resistant phytase are preferred to further increase the digestibility of the feed. 4. Calcium, phosphorus and acidifiers of the low-emission environment-friendly premixed feed are selected and prepared through the "coupling principle of acidity and electrolyte balance of piglet ration". (1) Calcium formate, calcium lactate and calcium phosphate are preferred to reduce the influence of common calcium and phosphorus sources on feed acidity. (2) Preferably, a compound acidifier is added to supplement the insufficient gastric acid secretion of the piglets to promote the activation of endogenous enzymes in the piglet stomach and improve the digestion and absorption of the nutrients. (3) Preferably, tributyrin is added to repair intestinal villi, inhibit harmful bacteria in the intestine, and promote the absorption and utilization of the nutrients. (4) Preferably, benzoic acid is added to reduce abnormal fermentation of microorganisms in the hindgut, which can effectively control diarrhea of weaned piglets, reduce weaning stress and increase survival rate and daily weight gain. 5. An intestinal astringent, an immune balance agent and an intestinal microflora regulator of the low-emission environment-friendly premixed feed are selected and prepared through the combination of the "pig disease-resistant nutrition principle" and "no-resistance precision nutrition principle". Modified montmorillonite, coated tannic acid, and coated zinc oxide are preferred for convergence; coated plant essential oil, lysozyme, hawthorn extract and betaine are preferred for intestinal immune balance adjustment; Bacillus subtilis is preferred for adjusting intestinal
Description
microflora of piglets; and the effects of strongly inhibiting and killing the intestinal pathogenic
bacteria, regulating the intestinal microflora of the piglets, and balancing the immune function are
achieved, thereby effectively controlling the diarrhea of weaned piglets.
6. Compared with commercially available products, the product prepared by the present
application can significantly improve piglet ADG, ADFI and F/G, reduce the diarrhea rate of the
piglets by 63.27%, and increase the contents of the piglet serum immunoglobulins IgA, IgG and
IgM. In addition, the product can reduce the contents of iron, copper, manganese and zinc in the pig
feces. The contents of the iron, the copper, the manganese and the zinc in the pig feces can be
reduced respectively by more than 44.55%, 80.99%, 34.91% and 58.94%.
Detailed Description
Specific embodiments of the present invention are described below to facilitate those skilled
in the art to understand the present invention. However, it should be understood that the present
invention is not limited to the scope of the specific embodiments. For those ordinary skilled in the
art, as long as various changes are within the spirit and scope of the present invention defined and
determined by the attached claims, these changes are obvious. All inventions which utilize the
conception of the present invention are protected.
Embodiment 1
A low-emission environment-friendly compound feed for reducing a diarrhea rate of piglets
comprises the following components by weight percentage:
42% of corn, 16.7% of wheat, 4% of glucose, 9% of quick-exploded soybeans, 6% of soybean
meal, 7% of fermented soybean meal, 3.5% of soy protein concentrate, 4% of whey powder, 1.1%
of yeast culture, 1.7% of soybean oil and 5% of the low-emission environment-friendly premixed
feed.
The low-emission environment-friendly premixed 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
Description
acid, 12 parts of piglet multivitamins, 6 parts of 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 selenocysteine, 0.4 part of chromium nicotinate, 0.5 part of seaweed
iodine, 23 parts of silicon dioxide and 50.1 parts of rice chaff powder.
A preparation method of the low-emission environment-friendly compound feed for reducing
the diarrhea rate of piglets comprises the following specific process:
(1) screening the national standard first-class corn and wheat to remove iron, impurities and
debris;
(2) crushing the corn, the wheat and the soybean meal with a ©2.mm sieve, adding the
materials to a mixer according to the ratio of the present invention, and adding 1% of soybean oil at
the same time; mixing the materials in the mixer for 2 min, and then entering the twin-screw
extruder which has expanding parameters: die hole diameter/die hole length of 1/8, quenching and
tempering temperature of 87°C, steam pressure of 0.6MPa, screw speed of 175r/min, expanding
temperature of 126°C and feeding speed of 11.5HZ; after expanding is completed, fully cooling and
then crushing the materials by a $1.2mm sieve to obtain a puffed mixture of the corn, the wheat and
the soybean meal;
(3) mixing the materials in the following order: expanded mixture in step (2)-quick-exploded
soybeans-fermented soybean meal-soybean protein concentrate-yeast culture-remaining soybean
oil-low-emission environment-friendly compound premixed feed-whey powder-glucose; adding the
above raw materials into the mixer according to the ratio of the present invention, with the mixing
time of 3 min; after mixing uniformly, quenching and tempering the mixture at 67°C for 1 min;
using a ring die with a compression ratio of 4.5:1 and an aperture of 3.0 mm to make particles with
a length of 6.0 mm; and after fully cooling, screening and packaging the mixture into finished
particles.
Embodiment 2
A low-emission environment-friendly compound feed for reducing a diarrhea rate of piglets
comprises the following components by weight percentage:
42.3% of corn, 13.8% of wheat, 5.3% of glucose, 8.5% of quick-exploded soybeans, 7% of
soybean meal, 6.5% of fermented soybean meal, 4% of soy protein concentrate, 4.5% of whey
powder, 1.2% of yeast culture, 1.9% of soybean oil and 5% of the low-emission
Description
environment-friendly premixed feed. The low-emission environment-friendly premixed feed comprises the following components in parts by weight: 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 piglet multivitamins, 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 selenocysteine, 0.1 part of chromium nicotinate, 0.9 part of seaweed iodine, 21 parts of silicon dioxide and 38 parts of rice chaff powder. A preparation method of the low-emission environment-friendly compound feed for reducing the diarrhea rate of piglets comprises the following specific process: (1) screening the national standard first-class corn and wheat to remove iron, impurities and debris; (2) crushing the corn, the wheat and the soybean meal with a ©2.mm sieve, adding the materials to a mixer according to the ratio of the present invention, and adding 1% of soybean oil at the same time; mixing the materials in the mixer for 2 min, and then entering the twin-screw extruder which has expanding parameters: die hole diameter/die hole length of 1/8, quenching and tempering temperature of 87°C, steam pressure of 0.6MPa, screw speed of 175r/min, expanding temperature of 126°C and feeding speed of 11.5HZ; after expanding is completed, fully cooling and then crushing the materials by a ©1.2mm sieve to obtain a puffed mixture of the corn, the wheat and the soybean meal; (3) mixing the materials in the following order: expanded mixture in step (2)-quick-exploded soybeans-fermented soybean meal-soybean protein concentrate-yeast culture-remaining soybean oil-low-emission environment-friendly compound premixed feed-whey powder-glucose; adding the above raw materials into the mixer according to the ratio of the present invention, with the mixing time of 3 min; after mixing uniformly, quenching and tempering the mixture at 67°C for 1 min;
Description
using a ring die with a compression ratio of 4.5:1 and an aperture of 3.0 mm to make particles with
a length of 6.0 mm; and after fully cooling, screening and packaging the mixture into finished
particles.
Embodiment 3
A low-emission environment-friendly compound feed for reducing a diarrhea rate of piglets
comprises the following components by weight percentage:
42.7% of corn, 13.9% of wheat, 5.5% of glucose, 7% of quick-exploded soybeans, 6% of
soybean meal, 7% of fermented soybean meal, 5.1% of soy protein concentrate, 4.0% of whey
powder, 1.5% of yeast culture, 2.3% of soybean oil and 5% of the low-emission
environment-friendly premixed feed.
The low-emission environment-friendly premixed feed comprises the following components
in parts by weight:
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 multivitamins, 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 selenocysteine, 0.3 part of chromium nicotinate, 0.1 part of seaweed
iodine, 19 parts of silicon dioxide and 17.6 parts of rice chaff powder.
A preparation method of the low-emission environment-friendly compound feed for reducing
the diarrhea rate of piglets comprises the following specific process:
(1) screening the national standard first-class corn and wheat to remove iron, impurities and
debris;
(2) crushing the corn, the wheat and the soybean meal with a (D2.mm sieve, adding the
materials to a mixer according to the ratio of the present invention, and adding 1% of soybean oil at
the same time; mixing the materials in the mixer for 2 min, and then entering the twin-screw
extruder which has expanding parameters: die hole diameter/die hole length of 1/8, quenching and
Description
tempering temperature of 87°C, steam pressure of 0.6MPa, screw speed of 175r/min, expanding
temperature of 126°C and feeding speed of 11.5HZ; after expanding is completed, fully cooling and
then crushing the materials by a (D1.2mm sieve to obtain a puffed mixture of the com, the wheat and
the soybean meal;
(3) mixing the materials in the following order: expanded mixture in step (2)-quick-exploded
soybeans-fermented soybean meal-soybean protein concentrate-yeast culture-remaining soybean
oil-low-emission environment-friendly compound premixed feed-whey powder-glucose; adding the
above raw materials into the mixer according to the ratio of the present invention, with the mixing
time of 3 min; after mixing uniformly, quenching and tempering the mixture at 67°C for 1 min;
using a ring die with a compression ratio of 4.5:1 and an aperture of 3.0 mm to make particles with
a length of 6.0 mm; and after fully cooling, screening and packaging the mixture into finished
particles.
Embodiment 4
A low-emission environment-friendly compound feed for reducing a diarrhea rate of piglets
comprises the following components by weight percentage:
45.2% of corn, 10% of wheat, 6% of glucose, 4.5% of quick-exploded soybeans, 9% of
soybean meal, 4% of fermented soybean meal, 7% of soy protein concentrate, 6% of whey powder,
0.8% of yeast culture, 2.5% of soybean oil and 5% of the low-emission environment-friendly
premixed feed.
The low-emission environment-friendly premixed feed comprises the following components
in parts by weight:
The low-emission environment-friendly premixed 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
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 piglet multivitamins, 4 parts of complex
enzyme preparation, 5 parts of phytase, 3 parts of sweetener, 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,
Description
3 parts of copper citrate, 5 parts of manganese citrate, 4 parts of selenocysteine, 0.2 part of
chromium nicotinate, 0.7 part of seaweed iodine, 15 parts of silicon dioxide and 30.1 parts of rice
chaff powder.
A preparation method of the low-emission environment-friendly compound feed for reducing
the diarrhea rate of piglets comprises the following specific process:
(1) screening the national standard first-class corn and wheat to remove iron, impurities and
debris;
(2) crushing the corn, the wheat and the soybean meal with a ©2.mm sieve, adding the
materials to a mixer according to the ratio of the present invention, and adding 1% of soybean oil at
the same time; mixing the materials in the mixer for 2 min, and then entering the twin-screw
extruder which has expanding parameters: die hole diameter/die hole length of 1/8, quenching and
tempering temperature of 87°C, steam pressure of 0.6MPa, screw speed of 175r/min, expanding
temperature of 126°C and feeding speed of 11.5HZ; after expanding is completed, fully cooling and
then crushing the materials by a ©1.2mm sieve to obtain a puffed mixture of the corn, the wheat and
the soybean meal;
(3) mixing the materials in the following order: expanded mixture in step (2)-quick-exploded
soybeans-fermented soybean meal-soybean protein concentrate-yeast culture-remaining soybean
oil-low-emission environment-friendly compound premixed feed-whey powder-glucose; adding the
above raw materials into the mixer according to the ratio of the present invention, with the mixing
time of 3 min; after mixing uniformly, quenching and tempering the mixture at 67°C for 1 min;
using a ring die with a compression ratio of 4.5:1 and an aperture of 3.0 mm to make particles with
a length of 6.0 mm; and after fully cooling, screening and packaging the mixture into finished
particles.
Embodiment 5
A low-emission environment-friendly compound feed for reducing a diarrhea rate of piglets
comprises the following components by weight percentage: 44% of corn, 12.5% of wheat, 5% of glucose, 7 .5% of quick-exploded soybeans, 8% of
soybean meal, 5% of fermented soybean meal, 5% of soy 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 low-emission environment-friendly premixed feed comprises the following components
Description
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,
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 multivitamins,
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 selenocysteine,
0.2 part of chromium nicotinate, 0.8 part of seaweed iodine, 40 parts of modified montmorillonite,
parts of silicon dioxide and 45.0 parts of rice chaff powder.
A preparation method of the low-emission environment-friendly compound feed for reducing
the diarrhea rate of piglets comprises the following specific process:
(1) screening the national standard first-class corn and wheat to remove iron, impurities and
debris;
(2) crushing the corn, the wheat and the soybean meal with a ©2.mm sieve, adding the
materials to a mixer according to the ratio of the present invention, and adding 1% of soybean oil at
the same time; mixing the materials in the mixer for 2 min, and then entering the twin-screw
extruder which has expanding parameters: die hole diameter/die hole length of 1/8, quenching and
tempering temperature of 87°C, steam pressure of 0.6MPa, screw speed of 175r/min, expanding
temperature of 126°C and feeding speed of 11.5HZ; after expanding is completed, fully cooling and
then crushing the materials by a ©1.2mm sieve to obtain a puffed mixture of the corn, the wheat and
the soybean meal;
(3) mixing the materials in the following order: expanded mixture in step (2)-quick-exploded
soybeans-fermented soybean meal-soybean protein concentrate-yeast culture-remaining soybean
oil-low-emission environment-friendly compound premixed feed-whey powder-glucose; adding the
above raw materials into the mixer according to the ratio of the present invention, with the mixing
time of 3 min; after mixing uniformly, quenching and tempering the mixture at 67°C for 1 min;
using a ring die with a compression ratio of 4.5:1 and an aperture of 3.0 mm to make particles with
a length of 6.0 mm; and after fully cooling, screening and packaging the mixture into finished
Description
particles.
Test example
In the test, 120 21-day-old weaned and healthy DLY castrated piglets (6.520.45kg) are
selected and randomly divided into 6 groups. Each group includes 20 piglets, and bred in separate
pens. After pre-breeding for 3 days, a formal test is carried out for 4 weeks. The diets for the piglets
in each treatment group are as follows: test group 1 has the formula diet of embodiment 1, test
group 2 has the formula diet of embodiment 2, test group 3 has the formula diet of embodiment 3,
test group 4 has the formula diet of embodiment 4 and test group 5 has the formula diet of
embodiment 5. The diet formula of the control group is as follows: 44% of corn, 12.5% of wheat,
% of glucose, 7.5% of quick-exploded soybeans, 8% of soybean meal, 5% of fermented soybean
meal, 5% of soy protein concentrate, 5% of whey powder, 1% of yeast culture, 2% of soybean oil
and 5% of the commercially available compound premixed feed.
At the beginning and end of the test, the piglets are weighed on an empty stomach. During the
test, the feed consumption is recorded in unit of repeats, and the average daily gain (ADG), average
daily feed intake (ADFI), and feed-to-weight ratio (F/G) are calculated. During the entire test, the
feces of each pig is observed and the diarrhea rate of the piglets in each treatment group is
calculated. At the end of the test, 5 piglets are selected from each group for blood sampling, and
concentrations of serum lysozyme, IgA, IgG and IgM are detected. At the end of the test, the feces
of 2 piglets are collected repeatedly to detect the copper content in the feces.
At the beginning and end of the test, the piglets are weighed on an empty stomach. During the
test, the feed consumption is recorded in unit of repeats, and the average daily gain (ADG), average
daily feed intake (ADFI), and feed-to-weight ratio (F/G) are calculated. The feed-to-weight ratio =
feed consumption/weight gain. During the entire test, the health statuses of the piglets are observed
every day and the diarrhea rate of the piglets in each treatment group is calculated. Diarrhea rate=
number of piglets with diarrhea/total number of piglets x 100%
The contents of serum immunoglobulins IgA, IgG and IgM, superoxide dismutase (SOD),
peroxidase (POD), nitric oxide synthase (NOS), glutathione peroxidase (GSH-PX) and total
antioxidant capacity (T-AOC) are determined. The contents of iron, copper, manganese and zinc in
the pig feces are determined.
Table 1 Growth Performance and Diarrhea Rate of Weaned Piglets in Each Treatment Group
Items Gro Test Group 1 Test Group 2 Test Group 3 Test Group 4 SEM P Group Group
Description 5
ADG(g) 390ob 420a 425a 430a 440a 45Oa 9.7 <0.01 ADFI(g) 685 691a 698a 71oa 71Wa 700a 14.2 <0.01 Feed-to-weight 1.76a 1.65b 1.64b 1.65b 1.62b 1.5 6b 0.02 <0.01 ratio FIG Diarrhea 9.8% 3.6% 2.1% 1.9% 2.0% 1.0% 0.05 <0.01 rate00 The same letter on the shoulder letters of the same row in the table indicates no significant
difference (P>0.05), and different letters indicate significant differences (P<0.05). SEM: mean value
of standard errors (n=20).
It can be seen from Table 1 that the low-emission environment-friendly feed for reducing the
diarrhea rate of the piglets provided in embodiments 1 to 5 is used for feeding experiments.
Compared with the control group, the growth performance of weaned piglets can be significantly
improved, and the diarrhea rate of the piglets can be reduced by more than 63.27%.
Table 2 Serum Immunoglobulin Content of Weaned Piglets in Each Treatment Group
Control Test Test Test Test Test Items Group Group 1 Group 2 Group 3 Group 4 Group 5 SEM P
IgA(mg/dl) 0.17 0.40a 0.44a 0.48a 0.45a 0.50a 0.05 <0.01 IgG(mg/dl) 199b 255a 256a 273a 277a 285a 9.6 <0.01 IgM(mg/dl) 3 7 .4b 50.6a 51.5a 56.13 53.2a 56.5a 1.78 <0.01
The same letter on the shoulder letters of the same row in the table indicates no significant
difference (P>0.05), and different letters indicate significant differences (P<0.05). SEM: mean value
of standard errors (n=5).
It can be seen from Table 2 that the low-emission environment-friendly feed for reducing the
diarrhea rate of the piglets provided in embodiments 1 to 5 is used for feeding experiments.
Compared with the control group, the contents of serum immunoglobulins IgA, IgG and IgM can be
significantly increased.
Table 3 Antioxidant Indexes in Serum of Weaned Piglets in Each Treatment Group
Items Control Test Test Test Test Test SEM P Group Group 1 Group 2 Group 3 Group 4 Group 5 Serum POD (U/mL) 23.3c 36.5c 34.8 38.la 38.la 38.la 1.1 <0.01 Serum NOS (U/mL) 19.1a 20.8a 20.53 19 9a 21.5a 22.1a 1.5 0.525 Serum GSH-PX 372b 504a 503a 495a 488a 498a 7.5 <0.01 (U/mL) Serum T-AOC (U/mL) 1 .4 6b 2.67a 2.46a 2.73a 2.8 la 2.90a 0.2 <0.01 Serum SOD (U/mL) 33.8a 34.la 37.7a 36.5a 35.8a 37.2a 2.5 0.51 Note: The same letter on the shoulder letters of the same row in the table indicates no
significant difference (P>0.05), and different letters indicate significant differences (P<0.05). SEM:
Description
mean value of standard errors (n=5). It can be seen from Table 3 that the low-emission environment-friendly feed for reducing the diarrhea rate of the piglets provided in embodiments 1 to 5 is used for feeding experiments. Compared with the control group, the contents of serum POD, GSH-PX and T-AOC can be significantly increased. Table 4 Feces of Weaned Piglets in Each Treatment Group Items Control Test Test Test Test Group Test 5 SEM P Group Group 1 Group 2 Group 3 4 Group Iron (mg/kg) 1910a 1028b 1033b 1059b 1015b 103 8b 20.5 <0.01 Copper 605a 120b 115b 119b 122b 118b 6.5 <0.01 (mg/kg) Manganese 212a 155b 163b 155b 158b 138b 7.3 <0.01 (mg/kg) Zinc (mg/kg) 4980a 2167b 2045b 2273b 2281 2 19 0b 22.1 <0.01 Note: The same letter on the shoulder letters of the same row in the table indicates no significant difference (P>0.05), and different letters indicate significant differences (P<0.05). SEM: mean value of standard errors (n=5). It can be seen from Table 4 that the low-emission environment-friendly feed for reducing the diarrhea rate of the piglets provided in embodiments 1 to 5 is used for feeding experiments. Compared with the control group, the contents of iron, copper, manganese and zinc in the pig feces can be significantly reduced. The contents of the iron, the copper, the manganese and the zinc in the feces can be reduced respectively by more than 44.55%, 80.99%, 34.91% and 58.94%.
Through the above analysis, the compound feed and the low-emission environment-friendly premixed feed provided by the present invention can significantly increase the average daily gain, significantly reduce the feed-to-weight ratio, significantly reduce the diarrhea rate of the piglets by 63.27%, significantly increase the contents of serum immunoglobulins IgA, IgG and IgM and effectively reduce the contents of iron, copper, manganese and zinc in the pig feces. The contents of the iron, the copper, the manganese and the zinc in the feces can be reduced respectively by more than 44.55%, 80.99%, 34.91% and 58.94%.

Claims (9)

Claims
1. A low-emission environment-friendly premixed feed for reducing a diarrhea rate of piglets,
comprising 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 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 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 multivitamins, 3-6 parts of complex enzyme preparation, 3-6 parts of phytase, 3-6 parts of
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 selenocysteine, 0.1-0.4 part of chromium nicotinate, 0.5-1
part of seaweed iodine, 15-23 parts of silicon dioxide and 30.1-50.1 parts of rice chaff powder.
2. The low-emission environment-friendly premixed feed for reducing the diarrhea rate of
piglets according to claim 1, 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,
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 piglet multivitamins, 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 selenocysteine, 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 premixed 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 silicon dioxide.
4. A low-emission environment-friendly compound feed for reducing a diarrhea rate of piglets,
Claims
comprising the following components by weight percentage:
42%-45.2% of corn, 10%-16.7% of wheat, 4%-7% of glucose, 4.5%-9% of quick-exploded
soybeans, 6%-9% of soybean meal, 4%-7% of fermented soybean meal, 3.5%-7% of soy 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 of any one of claims 1-3.
5. The low-emission environment-friendly compound feed according to claim 4, comprising
the following components by weight percentage:
44% of corn, 12.5% of wheat, 5% of glucose, 7.5% of quick-exploded soybeans, 8% of
soybean meal, 5% of fermented soybean meal, 5% of soy protein concentrate, 5% of whey powder,
1% of yeast culture, 2% of soybean oil and 5% of the low-emission environment-friendly premixed
feed of any one of claims 1-3.
6. A preparation method of the low-emission environment-friendly compound feed of claim 4
or 5, comprising the following steps:
(1) screening the corn and the wheat according to a formula to remove sundries therein;
(2) crushing the corn and the wheat to a particle size of 2-3mm, then adding half of the
soybean oil used in the formula, mixing uniformly, and then squeezing and expanding the mixture
to obtain an expanded mixture;
(3) mixing the expanded mixture, the quick-exploded soybeans, the fermented soybean meal,
the soybean protein concentrate, the yeast culture, remaining soybean oil, the low-emission
environment-friendly premixed feed, the whey powder and the glucose for 3-5 min, mixing
uniformly and then quenching and tempering the mixture at 65-70°C for 1-5 min.
7. The preparation method according to claim 6, wherein the squeezing and expanding process
uses a twin-screw extruder, and has expanding parameters: die hole diameter/die hole length of 1/8,
quenching and tempering temperature of 87C, steam pressure of 0.6MPa, screw speed of 175r/min,
expanding temperature of 126°C and feeding speed of 11.5HZ.
8. The preparation method according to claim 6, wherein in the step (3), the quenching and
tempering temperature is 67C, and the time is 1 min.
9. The preparation method according to claim 6, further comprising adopting a ring die with a
compression ratio of 4.5:1 and an aperture of 3.0 mm to make the product obtained in the step (3)
into particles with a length of 6.0 mm.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116420819A (en) * 2023-06-14 2023-07-14 四川省畜牧科学研究院 Feed premix and feed for stock pigs of Chuan-xiang black pigs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116420819A (en) * 2023-06-14 2023-07-14 四川省畜牧科学研究院 Feed premix and feed for stock pigs of Chuan-xiang black pigs

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