CN115349578A - Mutton sheep total mixed ration added with egg fat powder and application - Google Patents
Mutton sheep total mixed ration added with egg fat powder and application Download PDFInfo
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- CN115349578A CN115349578A CN202211285075.XA CN202211285075A CN115349578A CN 115349578 A CN115349578 A CN 115349578A CN 202211285075 A CN202211285075 A CN 202211285075A CN 115349578 A CN115349578 A CN 115349578A
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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
- A23K50/00—Feeding-stuffs specially adapted for particular animals
- A23K50/10—Feeding-stuffs specially adapted for particular animals for ruminants
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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
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/142—Amino acids; Derivatives thereof
- A23K20/147—Polymeric derivatives, e.g. peptides or proteins
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/158—Fatty acids; Fats; Products containing oils or fats
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/174—Vitamins
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/20—Inorganic substances, e.g. oligoelements
- A23K20/26—Compounds containing phosphorus
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/20—Inorganic substances, e.g. oligoelements
- A23K20/30—Oligoelements
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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
- Y02P60/87—Re-use of by-products of food processing for fodder production
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Animal Husbandry (AREA)
- Zoology (AREA)
- Molecular Biology (AREA)
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- Biotechnology (AREA)
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- Fodder In General (AREA)
Abstract
The invention discloses a mutton sheep total mixed ration added with egg fat powder and application thereof. In particular to a method for preparing total mixed ration for mutton sheep by adopting egg fat powder to replace soybean meal. The total mixed ration for mutton sheep mainly comprises corn, egg fat powder, wheat bran, alfalfa hay, corn straw, salt, stone powder, calcium hydrophosphate, vitamin and trace element premix. The novel feed egg fat powder provided by the invention is characterized in that gossypol-free protein and fat are integrated. Compared with the conventional corn-soybean meal feed, the total mixed ration for the mutton sheep provided by the invention can effectively improve the weight gain and average daily gain of fattening sheep, improve the feed conversion rate and dressing percentage, and has no difference in meat quality. Therefore, the fully mixed ration provided by the invention can obtain better benefit on the premise of not adding bean pulp, is more beneficial to the short-term rapid fattening of the mutton sheep, is safe to use and has extremely high popularization value.
Description
Technical Field
The invention belongs to the technical field of feeds, and particularly relates to a protein powder and a mutton sheep total mixed ration prepared by using the protein powder to replace soybean meal.
Background
Soybeans play a significant role in providing feeds required by animal husbandry, but the total yield of the soybeans is low, and the soybeans are mainly imported. At present, the demand for the soybeans still needs to be solved through import, the international situation is unstable, the price of the soybeans is increased day by day, and the breeding profit is continuously reduced. Increasing the source of protein raw materials, improving the self-sufficient capability of the protein feed raw materials, reducing the dependence of the feed on protein raw materials such as bean pulp and the like, and relieving the problems of shortage of protein feed resources and high import dependence. On the one hand, a large number of researchers have been working on mining other protein materials, such as cottonseed meal, rapeseed meal, sunflower seed meal. On the other hand, the continuous maturity of the cottonseed dephenolization technology and the rumen bypass technology provides a new direction for the wide application of unconventional protein raw materials, the optimization of feed nutrition absorption and the reduction of feed resource waste in feces.
The protein is the basic substance of life and forms the basic framework of life; fat is an energy substance and is an energy source necessary for the life activity and production of animals. Studies have shown that proteins have a growth-dependent relationship with energy on protein deposition. Energy supply is usually neglected in common daily feed, the proportion of concentrate in the daily feed is increased once to meet the needs of animals in a special period, the animals have to use the body fat tissues as fuel to supply energy for synthetic protein, and dairy cows in perinatal period are most likely to cause ketosis, so that the economy of farmers is harmed. In the market, a plurality of fat products are applied to rapid fattening and breeding of mutton sheep, but the fat products have no clear response due to the proportion problem in the practical application. The dosage problem exists when the grease is added separately, and excessive addition or high content of unsaturated fatty acid easily has toxic effect on rumen microorganisms but is not beneficial to rumen fermentation, so that the growth of animals is influenced; too low has no obvious effect. In the actual production, the trouble of inconvenient operation, unclear effect and the like exists when the grease is added into the daily ration.
The invention selects a novel plant concentrated feed raw material, namely the egg fat powder, and the egg fat powder is used as a main protein-energy raw material for preparing the daily ration for the first time, so that the daily weight gain effect of the mutton sheep can be improved, the feed efficiency is improved, and meanwhile, the feed is simpler and more convenient to process. The invention discloses a novel protein fat feed, which is characterized in that the protein fat powder is never used and reported in animal daily ration, and the invention aims to explore the application of the novel protein fat feed in the daily ration of mutton sheep, determine the optimal proportion and the application method, and form a special technology. Therefore, the invention carries out simulation and verification through a standard feeding test mode, carries out comprehensive evaluation on the daily ration, obtains a reasonable result and further provides the invention.
Disclosure of Invention
In order to solve the technical problems, the invention provides a method for preparing a mutton sheep total mixed ration by using egg fat powder instead of soybean meal. The daily ration prepared by the method can improve the weight gain performance of fattening sheep, improve feed reward and improve meat production performance.
In order to realize the purpose, the invention adopts the following technical scheme:
the total mixed ration for the mutton sheep added with the egg fat powder comprises, by weight, 10 to 60 parts of corn, 2 to 30 parts of the egg fat powder, 4 to 10 parts of wheat bran, 10 to 20 parts of alfalfa hay, 10 to 20 parts of corn straw, 0.5 to 1.0 part of salt, 0.3 to 0.9 part of mountain flour, 0.2 to 0.7 part of calcium hydrophosphate, and 0.5 to 1.5 parts of vitamin and microelement premix.
Preferably, the egg fat powder mainly comprises 50% of vegetable protein and 5-20% of fat by weight, and the fat is cottonseed oil.
The egg fat powder also comprises starch, calcium and phosphorus, and the nutrient components of the egg fat powder comprise 96-97.5% of dry matter, 92-94% of organic matter, 50-60% of crude protein, 1-6% of crude fat, 15-22% of nitrogen-free extract, 0.15-0.3% of calcium and 0.8-1.5% of phosphorus.
The total mixed ration for mutton sheep as described above preferably comprises VA, VD, VE, ferrum, copper, manganese, zinc, selenium, iodine and cobalt in the vitamin and trace element premix.
The total mixed ration for mutton sheep preferably comprises 13000 to 17000IU, VD 2000 to 2500IU, VE 30 to 70mg, iron 45 to 55mg, copper 10 to 15mg, manganese 40 to 50mg, zinc 20 to 30mg, selenium 0.3 to 0.7mg, iodine 0.3 to 0.7mg and cobalt 0.05 to 0.30mg in each gram of the vitamin and microelement premix.
The total mixed ration for mutton sheep is prepared from 51.2 parts of corn, 12.55 parts of egg fat powder, 4 parts of wheat bran, 15 parts of alfalfa hay, 15 parts of corn straw, 0.8 part of salt, 0.75 part of stone powder, 0.5 part of calcium hydrophosphate and 1 part of vitamin and trace element premix.
Preferably, the vegetable protein content of the egg fat powder is 50%, and the fat content of the egg fat powder is 10%.
The application of the total mixed ration for the mutton sheep in feeding the mutton sheep is characterized in that the total mixed ration for the mutton sheep is fed every morning and afternoon.
A method for preparing a mutton sheep total mixed ration to feed mutton sheep by using egg fat powder instead of soybean meal comprises the steps of feeding the mutton sheep total mixed ration in the morning and in the afternoon every day, and additionally feeding 150 to 200g of corn stalks to each sheep in the noon; during feeding, the mutton sheep freely drink water, and the feeding amount is 1.15 to 1.2 times of the standard feed intake provided by the required amount of the mutton sheep (NY/T816-2021).
The invention is prepared by mixing the components in a specific proportion, meets the nutritional requirements of the mutton sheep, and improves the growth performance and slaughtering performance of the mutton sheep under the condition of not adding soybean meal and extra fat.
The invention has the beneficial effects that:
the egg fat powder is used for completely replacing bean pulp to be used in the mutton sheep fattening feed, meets the requirements of various nutrient substances such as protein, energy and the like of the mutton sheep every day, promotes the mutton sheep to quickly fatten in a short period, and provides the novel full-mixed ration.
The total mixed ration provided by the invention has the following remarkable advantages:
1. the egg fat powder provided by the invention is beneficial to feed enterprises to deal with the situation that protein resources, particularly bean pulp, are in short supply and high in price, and is used as technical reserve for dephenolized cottonseed high-fat protein powder.
2. The method is favorable for fully utilizing cottonseed resources to realize efficient and safe utilization, relieves the shortage form of protein feed, and is favorable for the feed industry to become a novel industry with resource conservation and environmental friendliness.
3. According to the method for preparing the total mixed ration for the mutton sheep by using the egg fat powder instead of the bean pulp, the bean pulp is not added under the condition that the market conditions of the bean pulp are high, the types of concentrated feed are reduced, extra fat additives are reduced, the feed cost and the processing technology are reduced to a certain extent, and the economic benefit of cultivation is remarkably improved.
4. The novel total mixed ration for the mutton sheep, provided by the invention, can improve the weight gain, the average daily weight gain, the dry matter feed intake and the feed conversion rate of fattening sheep; the pre-slaughter live weight, carcass weight, slaughter rate, eye muscle area and GR value are all superior to those of the control group.
The novel total mixed ration provided by the invention has the advantages that the growth performance and slaughter performance of the mutton sheep are higher than those of a control group under the conditions that fat deposition is not increased and the meat quality is influenced, the use is safe, and the novel total mixed ration without the bean pulp has strong popularization value.
Detailed Description
The invention aims to provide a novel total mixed ration which aims at meeting the requirements of various nutrient substances such as protein, energy and the like of mutton sheep every day and promoting the mutton sheep to quickly fatten in a short period by using a novel feed raw material, namely egg fat powder to completely replace bean pulp to be used in mutton sheep fattening feed according to NY/T816-2021 mutton sheep nutrition requirement standard in response to the situation that the supply of bean pulp is tense and the feed production is influenced and the animal production needs protein and fat.
The following examples are intended to further illustrate the invention but are not to be construed as limiting the invention. Modifications and substitutions may be made thereto without departing from the spirit and scope of the invention.
If not specifically indicated, the technical means used in the examples are conventional means well known to those skilled in the art, and the 3 egg fat powders used in the examples are respectively egg fat powder PF5, egg fat powder PF10 and egg fat powder PF20, which are produced by Xinjiang Jinlan vegetable protein Co., ltd, and the gossypol content of the product is lower than the national standard of 400mg/kg, and meets the national industry standard GH/T1042-2007. The rest raw materials are commercially available. Wherein, per gram of premix, namely the mixture of vitamins and trace elements, contains: VA 15000IU, VD 2200IU, VE 50mg, iron 55mg, copper 12.5mg, manganese 47mg, zinc 24mg, selenium 0.5mg, iodine 0.5mg and cobalt 0.2mg.
Example 1 preparation of Mixed diets for sheep
The mutton sheep are divided into 4 groups, and feeding modes of 4 mixed daily rations and protein feeds are respectively designed. Wherein 1 control group adopts typical corn soybean daily ration, and the protein feed is soybean meal; in 3 test groups, the soybean meal was replaced with egg fat powder PF5 (protein content 50%, fat content 5%), PF10 (protein content 50%, fat content 10%) and PF20 (protein content 50%, fat content 20%), and 4 mixed ration formulas are shown in table 2. The egg fat powder comprises PF5, PF10 and PF20, the protein in the 3 egg fat powder raw materials is consistent with the fat source, and the measured values of the nutrient components of PF5, PF10 and PF20 are shown in Table 1.
In table 1, the main nutritional ingredients (dry matter, organic matter, crude protein, crude fat, crude fiber, nitrogen-free extract, calcium and phosphorus) of the egg fat powder required for formulation of the daily ration are determined strictly according to the national standard, the water content in the egg fat powder is determined according to GBT6435-2014, and the dry matter content is calculated; GBT6438-2007 measures the crude ash content in the egg fat powder, and calculates the organic matter content; GBT6432-2018 measures the content of crude protein in the egg fat powder; GBT6433-2006 measures the crude fat content in the egg fat powder; GB/T6434-2006 determines the content of crude fiber in the egg fat powder; GBT6436-2018 measures the calcium content in the egg fat powder; GBT6437-2018 measures the phosphorus content in the egg fat powder.
Dry matter (%) =100% -moisture
Organics (%) =100% -coarse ash
Nitrogen-free extract (%) = dry matter (%) -crude protein (%) -crude fat (%) -crude fiber (%) -crude ash (%)
Table 1: egg fat powder nutrient content value (dry matter basis)
Table 2: test group diet composition and nutritional level
From the above table 2, it can be seen that the formula has different compositions and consistent content of basic nutrients, and the equivalent energy and the equivalent protein level are guaranteed.
EXAMPLE 2 Effect of egg fat powder on the growth Effect of mutton sheep
The mutton sheep production performance test is carried out in a Mongolian Bayan-Yan-Du-nong-Ke yard base at 2022 months, and small-tailed Han sheep of about 4 months with similar ages in days and weights (34.00 +/-2.5 kg) are selected and grouped according to the principle of similar average weights, each group has 3 repetitions, and each repetition has 5 repetitions. The sheep pen of experiment is full open-type colony house. The test pre-feeding period is 10 days, during which all test sheep are numbered, epidemic-prevention and in-vivo and in-vitro anthelmintic. Positive feeding period 65 days, 06: 30. 18: feeding at 00 hours, wherein the feeding amount is 1.15 to 1.2 times of the standard feed intake provided by the mutton sheep required amount (NY/T816-2021), and the feed is fed at 12 noon: and feeding each sheep with 150 to 200g of corn stalks. Free drinking water, and timely treatment of diseases. During the whole breeding period, the chicken is cleaned regularly and disinfected once every half a month (2% of caustic soda and 3% of bleaching powder are used in turn). Test period 0, 30 and 65 days before feeding are weighed one by one on empty stomach and body weight is recorded. After the positive feeding period begins, the amount of the residual materials is collected every day, the daily feed intake is calculated, the specific daily feed intake is adjusted according to the requirement of the free feed intake (the amount of the residual materials accounts for 10 percent of the feed intake), and the influence result of the egg fat powder on the growth and the feed efficiency of the mutton sheep is shown in a table 3. Wherein:
average daily feed intake = daily total feed-daily feed allowance.
Average daily gain = (final weight-initial weight)/number of days tested.
Feed weight ratio = average daily feed intake/average daily gain.
TABLE 3 Effect of egg fat powder on growth and feed efficiency of mutton sheep
Note: the same index, the same row shouldered with different lower case letters indicates that the difference is significant (P < 0.05).
The result shows that the weight gain performance and the feed conversion rate of the sheep using 3 kinds of egg white powder to replace soybean meal are higher than those of the control group, wherein the growth performance of the sheep in the PF10 group is the best, and the feed efficiency is the best. The feeding effect is optimal when the fat content in the egg fat powder is 10 percent.
EXAMPLE 3 Effect of egg fat powder on meat production Performance of mutton sheep
On the basis of the feeding in example 2, slaughter trials were carried out when the mutton sheep had fattened to around 55 kg. The results of measurements and calculations for pre-slaughter live weight, carcass weight, slaughter rate, carcass fat content value (GR value), eye muscle area are shown in Table 4.
Wherein, the carcass weight (kg) = live weight before slaughter-weight of head, hoof, skin, tail, reproductive organs and peripheral fat, viscera (except kidney and perirenal fat).
Dressing percentage (%) = (carcass weight/live weight before slaughter) × 100%.
Eye muscle area: drawing out the cross section contour of the eye muscle at the position of the vertebra between 11 th and 12 th costal bones by using a pencil on parchment paper, calculating the area (cm) of the eye muscle by adopting a formula 2 ) Height × width × 0.7.
GR value: the thickness of the tissue at 11cm from the midline of the ridge between 11 th and 12 th costal bones of the mutton sheep was measured with a vernier caliper and was indicative of the carcass fat content.
TABLE 4 Effect of egg fat powder on slaughter Performance of mutton sheep
Note: the same index, shoulder-noted different lower case letters on the same row indicates significant difference (P < 0.05).
The result shows that the slaughtering rate of the sheep fed with the daily ration containing the egg fat powder PF10 is the highest, namely the meat production performance is the best, the eye muscle area is the largest, and the meat production index is the best.
Example 4 Effect of egg fat powder on mutton sheep meat quality
Mutton quality tests were carried out on mutton slaughtered as in example 3, giving colour, drip loss, pH 0 h 、pH 24 h And delta pH, and specific detection results of the analysis and the determination methods are shown in Table 5.
Color of meat& pH 0h : measuring the lightness (L), redness (a) and yellowness (b) of the test sheep by colorimetry of Conicamida CR-10 type and measuring the pH value of the meat sample by a pH measuring instrument, wherein the pH value is measured 0h 。
Drip loss& pH 24 h : the meat sample is weighed by an analytical balance to be the initial weight of the meat sample, and the meat sample is hung in the disposable paper cup by utilizing the thin iron wire, so that the meat sample is prevented from contacting the side wall and the bottom of the paper cup; weighing meat sample after 24 hr, and measuring pH value of meat sample 24 h Drip loss and Δ pH were calculated.
Drip loss (%) = [ (initial weight of meat sample-final weight of meat sample)/initial weight of meat sample ] × 100%.
ΔpH = pH 0h - pH 24h 。
TABLE 5 Effect of egg fat powder on mutton sheep meat quality
Note: the same index, shoulder-noted different lower case letters on the same row indicates significant difference (P < 0.05).
The results show that the egg fat powder PF10 has a tendency to improve meat quality.
The test results show that: the egg fat powder PF10 is used for replacing soybean meal to feed the mutton sheep in the mixed ration of mutton sheep, the effect reaches or exceeds the soybean ration, and the egg fat powder PF10 can be used for replacing the soybean meal to be used in the nutrition and ration of the mutton sheep.
When the novel mutton sheep total mixed ration provided by the invention is used for feeding sheep, the weight gain, the average daily gain, the dry matter feed intake and the feed conversion rate of fattening sheep can be improved; the live weight, carcass weight and dressing percentage before slaughtering are all improved. According to the results, the growth performance and slaughtering performance of the mutton sheep are higher than those of the control group under the condition that the meat quality is not influenced by the novel fully-mixed ration, the use is safe, and the novel fully-mixed ration without the bean pulp has extremely high popularization value.
The daily ration formula provided by the invention improves the weight gain and meat production performance of the small-tailed Han sheep, and the average daily gain of 370g never appears in a test taking the small-tailed Han sheep as a main body. The invention fully develops the potential of the small tailed han sheep and also provides support for the subsequent pure breed optimization cultivation. The invention uses 3 kinds of egg fat powder, wherein PF10 (crude protein content is 50%, fat content is 10%) is used for preparing the daily ration with the best effect, and the formula of the invention can be used for mass production.
Claims (8)
1. A mutton sheep total mixed ration added with egg fat powder is characterized by comprising 10 to 60 parts of corn, 2 to 30 parts of egg fat powder, 4 to 10 parts of wheat bran, 10 to 20 parts of alfalfa hay, 10 to 20 parts of corn straw, 0.5 to 1.0 part of salt, 0.3 to 0.9 part of mountain flour, 0.2 to 0.7 part of calcium hydrophosphate and 0.5 to 1.5 parts of premix of vitamins and trace elements in parts by weight;
the egg fat powder mainly comprises 50% of vegetable protein and 5 to 20% of fat by weight, wherein the fat is cottonseed oil.
2. The mutton sheep total mixed ration according to claim 1, wherein the egg fat powder further comprises starch, calcium and phosphorus, and the nutrient components of the egg fat powder comprise 96-97.5% of dry matter, 92-94% of organic matter, 50-60% of crude protein, 1-6% of crude fat, 15-22% of nitrogen-free extract, 0.15-0.3% of calcium and 0.8-1.5% of phosphorus.
3. The mutton sheep whole mixed ration of claim 1 wherein said vitamin and trace element premix comprises VA, VD, VE, iron, copper, manganese, zinc, selenium, iodine, and cobalt.
4. The total mixed ration for mutton sheep as claimed in claim 1, wherein each gram of the premix comprises VA 13000-17000IU, VD 2000-2500IU, VE 30-70mg, iron 45-55mg, copper 10-15mg, manganese 40-50mg, zinc 20-30mg, selenium 0.3-0.7 mg, iodine 0.3-0.7 mg and cobalt 0.05-0.30mg.
5. The total mixed ration for mutton sheep according to claim 1, wherein the total mixed ration for mutton sheep comprises 51.2 parts of corn, 12.55 parts of egg fat powder, 4 parts of wheat bran, 15 parts of alfalfa hay, 15 parts of corn straw, 0.8 part of salt, 0.75 part of stone powder, 0.5 part of calcium hydrophosphate and 1 part of vitamin and trace element premix.
6. The mutton sheep whole mixed ration according to claim 1, wherein the vegetable protein content of the egg fat powder is 50% and the fat content is 10%.
7. Use of the whole mutton sheep ration according to any one of claims 1 to 6 in feeding mutton sheep, wherein the whole mutton sheep ration is fed every morning and afternoon.
8. A method for preparing a mutton sheep total mixed ration to feed by using egg fat powder instead of soybean meal is characterized in that the mutton sheep total mixed ration of any one of claims 1 to 7 is fed every morning and afternoon, and each sheep is fed with 150 to 200g of corn stalks at noon; during feeding, the mutton sheep had free water.
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Application publication date: 20221118 |