CN111406836A - Preparation method of piglet creep feed - Google Patents
Preparation method of piglet creep feed Download PDFInfo
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Abstract
The invention discloses a preparation method of a piglet creep feed, which mainly comprises the following steps: firstly, mixing and crushing corn and bean pulp, carrying out expansion treatment, then crushing again, mixing the obtained expanded material with flour, expanded soybean, fish meal, sugar, soybean oil, stone powder and calcium dihydrogen phosphate, granulating, cooling and crushing; and adding whey powder, protein powder, sodium chloride, calcium formate, amino acid, trace element premix and vitamin premix, performing secondary granulation on 45-55% of the mixed material, and finally uniformly mixing the rest powder and the granular material. The technological measures of the invention improve the physical structure, chemical characteristics and nutritional value of each main raw material, reduce the loss of vitamins, maintain the activity of an enzyme preparation, have good palatability, can obviously improve the digestion and absorption functions of piglets, greatly reduce the diarrhea proportion of the piglets, and improve the utilization rate of the swinery to the feed, thereby comprehensively improving the production performance of the pig farm.
Description
Technical Field
The invention relates to a preparation method of a piglet creep feed, belonging to the field of feed processing technologies.
Background
Since the African swine fever occurs in 2018, the stock of sows is rapidly reduced, so that a plurality of three-element sows are reserved for breeding to rapidly supplement the productivity of pig farms. The ternary sows have the disadvantages of insufficient milk, poor lactation habit, low immunity of the born piglets and high price of the piglets, so the demand of the breeding industry on high-grade creep feed is higher and higher.
The feed processing technology has important influence on the nutrient components of the feed, in particular to creep feed (commonly known as milk replacer and artificial milk). The feed with different quality and properties can be obtained by adopting different production processes. At present, the types of the creep feed in the market mainly comprise different types of powder, granules, powder and granules and the like, and the different types of the feed have advantages and disadvantages.
The powder material can cause nose choking, mouth pasting and the like in practical application; the hardness of the particles is high, which affects the palatability; the classification phenomenon can be caused by adding common powder. And the defects can influence the production performance of the pig farm in the practical application process.
Disclosure of Invention
The invention aims to provide a creep feed with good palatability and balanced nutrition so as to overcome the influence of unreasonable creep feed types and preparation processes on the production performance of a pig farm in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a preparation method of a piglet creep feed is researched and designed, and mainly comprises the following steps:
(1) firstly, taking corn and soybean meal according to a weight ratio of 45-55, crushing, and enabling 35-45% of crushed materials to pass through a 40-mesh sieve;
(2) performing expansion treatment on the mixed raw material obtained in the step (1) to ensure that the volume weight of the expanded mixed raw material reaches 450-500 g/L, cooling and then crushing again, wherein 55-65% of the crushed raw material can pass through a 60-mesh sieve;
(3) taking 55-60 parts by weight of the puffed material obtained in the step (2), uniformly mixing with 8-10 parts by weight of flour, 5-8 parts by weight of puffed soybeans, 3-5 parts by weight of fish meal, 4-5 parts by weight of sugar, 2-3 parts by weight of soybean oil, 1-3 parts by weight of stone powder and 1-2 parts by weight of monocalcium phosphate, granulating by using a granulator, cooling to room temperature, then crushing, and enabling 55-65% of crushed mixed material to pass through a 60-mesh sieve;
(4) adding 8-10 parts of whey powder, 2-3 parts of protein powder, 0.4-1 part of sodium chloride, 0.2-0.4 part of calcium formate, 0.6-1.2 parts of amino acid, 0.6-1.2 parts of trace element premixed feed and 1.5-3.5 parts of vitamin premixed feed into the material obtained in the step (3), uniformly mixing, and performing secondary granulation on 45-55% of the mixed material;
(5) and (3) finally, uniformly mixing the mixed material which is not granulated in the step (4) with the granular material prepared in the step (4) to obtain the powder-coated granular creep feed.
In the step (1), a No. 20 standard sieve sheet is adopted during crushing.
In the step (2), the expansion treatment temperature is controlled to be 90-110 ℃; the second time of crushing, 10 standard sieve sheets were used.
In the step (3), the granulation temperature is controlled to be 90-95 ℃, the tempering time is 180 seconds, the aperture of the circular mold is 2.5, and the compression ratio is 1: 4.5; after granulation, the powder is crushed by using a No. 10 standard sieve sheet.
In the step (4), the secondary granulation temperature is controlled to be 55-60 ℃, the modulation time is 180 seconds, the aperture of the circular mold is 2.5, and the compression ratio is 1: 4.5.
in the step (4), the trace element premix feed is prepared from the following raw materials: 15-18 parts of organic copper, 200-280 parts of organic iron, 100-150 parts of acid-resistant zinc oxide, 20-30 parts of organic manganese, 20-30 parts of 1% calcium iodate, 40-50 parts of 0.2% peptide selenium, 250-350 parts of starch and 100-400 parts of montmorillonite.
In the step (4), the vitamin premix feed is prepared from the following raw materials: 25-35 parts of vitamin A (50 ten thousand units), 120-30 parts of vitamin B, 235-45 parts of vitamin B, 640-50 parts of vitamin B, 6-19 parts of vitamin B12 (1%), 10-12 parts of vitamin D3 (50 ten thousand units), 120-160 parts of vitamin E (50%), 60-80 parts of nicotinamide (99%), 40-50 parts of pantothenic acid (92%) and 550-650 parts of rice hull powder.
Compared with the prior art, the invention has the positive and beneficial technical effects that:
1. according to the invention, through reasonably setting feed processing technology measures, the physical structure and chemical characteristics of each main raw material are improved, the nutritive value of the feed raw materials is further improved, the utilization rate of the pigsty to the feed can be improved by using the piglet milk substitute material, and thus the production performance of a pig farm is comprehensively improved.
2. The invention has simple process, improves the curing degree of the raw materials and can kill harmful bacteria carried by the raw materials by the powder wrapping process of expansion pre-curing treatment and two-time granulation of the corn and the bean pulp, simultaneously reduces the loss of vitamins, maintains the activity of an enzyme preparation, obviously improves the palatability of the milk replacer, and improves the daily feed intake by 30 g after 3 days of weaning.
3. Can obviously improve the digestion and absorption functions of the piglets, greatly reduce the diarrhea proportion of the piglets and greatly reduce the use of medicines.
Detailed Description
The present invention will be described in detail with reference to examples.
The equipment involved in the following examples is conventional in the art unless otherwise specified; the raw materials and reagents are all conventional commercial products in the field unless otherwise specified.
Example 1 a method for preparing a powder-coated creep feed, comprising the steps of:
(1) firstly, 50 parts of corn and 5 parts of bean pulp are mixed and ground by a micro grinder (No. 20 sieve sheet) until 60 percent of the material passes through a 60-mesh sieve; the function of the raw material micro powder is as follows: the pretreatment effect of the raw materials and the quality of finished products are improved.
(2) And (2) putting the raw material obtained after the first crushing in the step (1) into a puffing bin for carrying out expansion treatment at the expansion temperature of 100 ℃, wherein the volume weight of the raw material after expansion is 450-500 g/L, cooling and then crushing the raw material (using No. 10 sieve sheets), wherein the particle size of the crushed raw material is 60 percent and the crushed raw material passes through a 60-mesh sieve.
(3) Uniformly mixing 55 parts of the puffed material obtained in the step (2), 10 parts of flour, 5 parts of puffed soybean, 3 parts of fish meal, 5 parts of sugar, 3 parts of soybean oil, 1 part of stone powder and 1 part of monocalcium phosphate, and then performing primary granulation by using a granulator, wherein the granulation temperature is controlled to be 90-95 ℃, the conditioning time is 180 seconds, the aperture of a circular mold is 2.5, and the compression ratio is 1: 4.5, granulating, cooling to room temperature, and crushing (by using No. 10 sieve sheets), wherein the particle size of the crushed particles is 60 percent and the crushed particles pass through a 60-mesh sieve. The effect of one-time granulation: the raw materials which have great influence on the digestion and absorption of the piglets are cured at high temperature, the carried germs are killed, the digestion, absorption and conversion rate of the piglets on the feed are improved, and the sugar, the soybean oil, the stone powder and the calcium dihydrogen phosphate are premixed.
(4) And (3) adding 10 parts of whey powder, 2.5 parts of protein powder, 0.5 part of sodium chloride, 0.4 part of calcium formate, 1.2 parts of amino acid, 0.8 part of trace element premixed feed and 2.6 parts of vitamin premixed feed into the materials in the step (3) and then uniformly mixing the materials to uniformly distribute various nutrient components and improve the utilization efficiency of the feed.
The trace element premix feed is prepared from the following raw materials: 16 parts of organic copper, 240 parts of organic iron, 125 parts of acid-resistant zinc oxide, 25 parts of organic manganese, 25 parts of 1% calcium iodate, 45 parts of 0.2% peptide selenium, 300 parts of starch and 250 parts of montmorillonite.
The vitamin premixed feed is prepared from the following raw materials: 30 parts of vitamin A (50 ten thousand units), 125 parts of vitamin B, 240 parts of vitamin B, 645 parts of vitamin B, 13 parts of vitamin B12 (1%), 11 parts of vitamin D3 (50 ten thousand units), 140 parts of vitamin E (50%), 70 parts of nicotinamide (99%), 45 parts of pantothenic acid (92%) and 600 parts of rice hull powder.
Carrying out secondary granulation on 50% of the material in the step (4) through a granulator, wherein the granulation temperature is 55-60 ℃, the modulation time is 180 seconds, the aperture of a circular mold is 2.5, and the compression ratio is 1: and 4.5, granulating and cooling.
The effect of two-time granulation: the material is made into particles, so that the feed utilization efficiency of the weaned piglets is improved, diarrhea is reduced, the production performance is correspondingly improved, and the use of medicines in the breeding process is reduced.
And (5) uniformly mixing the granular material obtained in the step (4) with powder which is not granulated, and packaging to obtain the creep feed. The reasonable powder and particle mixing effect in the step is as follows: the powder is easy to teach, has good food calling effect, is low in particle material waste and high in curing degree, improves the production performance of piglets, and reduces feed waste.
Example 2 a method of preparing a powder-coated creep feed includes the steps of:
(1) firstly, 55 parts of corn and 5 parts of soybean meal are mixed and then crushed (a No. 20 sieve sheet is used in a Middy micro crusher of Yangzhou family), so that 60 percent of the material can pass through a 60-mesh sieve; so as to improve the pretreatment effect of the raw materials and the quality of finished products.
(2) And (2) putting the raw material obtained after the first crushing in the step (1) into a puffing bin for carrying out expansion treatment at the expansion temperature of 100 ℃, wherein the volume weight of the raw material after expansion is 450-500 g/L, cooling and then crushing the raw material (using No. 10 sieve sheets), wherein the particle size of the crushed raw material is 60 percent and the crushed raw material passes through a 60-mesh sieve, and the effect of the expansion treatment of the raw material is to improve the curing degree of the raw material and the quality of a finished product.
(3) Uniformly mixing 55 parts of the puffed material obtained in the step (2) with 10 parts of flour, 5 parts of puffed soybean, 3 parts of fish meal, 5 parts of sugar, 3 parts of soybean oil, 1 part of stone powder and 1 part of monocalcium phosphate, and then performing primary granulation by using a granulator, wherein the granulation temperature is controlled to be 90-95 ℃, the conditioning time is 180 seconds, the aperture of a circular mold is 2.5, and the compression ratio is 1: 4.5, granulating, cooling to room temperature, and crushing (by using No. 10 sieve sheets), wherein the particle size of the crushed particles is 60 percent and the crushed particles pass through a 60-mesh sieve. The effect of one-time granulation: the raw materials which have great influence on the digestion and absorption of the piglets are cured at high temperature, the carried germs are killed, the digestion, absorption and conversion rate of the piglets on the feed are improved, and the sugar, the soybean oil, the stone powder and the calcium dihydrogen phosphate are premixed.
(4) And (3) adding 10 parts of whey powder, 2.5 parts of protein powder, 0.5 part of sodium chloride, 0.4 part of calcium formate, 1.2 parts of amino acid, 1.2 parts of trace element premix feed and 3.2 parts of vitamin premix feed into the materials in the step (3) and uniformly mixing so as to uniformly distribute various nutrient components and improve the utilization efficiency of the feed.
The trace element premix feed is prepared from the following raw materials: 15 parts of organic copper, 200 parts of organic iron, 100 parts of acid-resistant zinc oxide, 20 parts of organic manganese, 20 parts of 1% calcium iodate, 40 parts of 0.2% peptide selenium, 250 parts of starch and 100 parts of montmorillonite.
The vitamin premixed feed is prepared from the following raw materials: 25 parts of vitamin A (50 ten thousand units), 120 parts of vitamin B, 235 parts of vitamin B, 640 parts of vitamin B, 6 parts of vitamin B12 (1%), 10 parts of vitamin D3 (50 ten thousand units), 120 parts of vitamin E (50%), 60 parts of nicotinamide (99%), 40 parts of pantothenic acid (92%) and 550 parts of rice hull powder.
Carrying out secondary granulation on 50% of the material obtained in the step (4) through a granulator, controlling the granulation temperature to be 55-60 ℃, regulating the time to be 180 seconds, controlling the aperture of a circular mold to be 2.5, and controlling the compression ratio to be 1: and 4.5, granulating and cooling.
The effect of two-time granulation: the material is made into particles, so that the feed utilization efficiency of the weaned piglets is improved, diarrhea is reduced, the production performance is correspondingly improved, and the use of medicines in the breeding process is reduced.
And (4) finally, uniformly mixing the granular material obtained in the step (4) with the rest powder which is not granulated, and packaging to obtain the powder-coated granular creep feed. Powder and granule mixing action: the powder is easy to teach the groove and has good food calling effect, the waste of the granular materials is less, the curing degree is high, the production performance of the piglets is improved, and the waste of the feed is reduced.
Example 3 a method of preparing a powder-coated creep feed, comprising the steps of:
(1) firstly, 45 parts of corn and 5 parts of soybean meal are mixed and then crushed (a No. 20 sieve plate is used in a Middy micro crusher of Yangzhou family), and the particle size of the mixture is 60 percent and the mixture passes through a 60-mesh sieve; the function of the raw material micro powder is as follows: the pretreatment effect of the raw materials and the quality of finished products are improved.
(2) And (2) putting the raw material obtained after the first crushing in the step (1) into a puffing bin for carrying out expansion treatment at the expansion temperature of 100 ℃, wherein the volume weight of the raw material after expansion is 450-500 g/L, cooling and then crushing the raw material (using No. 10 sieve sheets), wherein the particle size of the crushed raw material is 60 percent, and the crushed raw material passes through a 60-mesh sieve.
(3) Uniformly mixing 50 parts of the puffed material obtained in the step (2), 10 parts of flour, 8 parts of puffed soybean, 5 parts of fish meal, 5 parts of sugar, 3 parts of soybean oil, 1 part of stone powder and 1 part of monocalcium phosphate, and then performing primary granulation by using a granulator, wherein the granulation temperature is controlled to be 90-95 ℃, the conditioning time is 180 seconds, the aperture of a circular mold is 2.5, and the compression ratio is 1: 4.5, granulating, cooling to room temperature, and crushing (by using No. 10 sieve sheets), wherein the particle size of the crushed particles is 60 percent and the crushed particles pass through a 60-mesh sieve. The effect of one-time granulation: the raw materials which have great influence on the digestion and absorption of the piglets are cured at high temperature, the carried germs are killed, the digestion, absorption and conversion rate of the piglets on the feed are improved, and the sugar, the soybean oil, the stone powder and the calcium dihydrogen phosphate are premixed.
(4) And (3) adding 10 parts of whey powder, 2.5 parts of protein powder, 0.5 part of sodium chloride, 0.2 part of calcium formate, 0.6 part of amino acid, 0.6 part of trace element premixed feed and 1.6 parts of vitamin premixed feed into the materials obtained in the step (3) and uniformly mixing. The mixing function is as follows: the nutrient components are uniformly distributed, and the utilization efficiency of the feed is improved.
The trace element premix feed is prepared from the following raw materials: 18 parts of organic copper, 260 parts of organic iron, 150 parts of acid-resistant zinc oxide, 30 parts of organic manganese, 30 parts of 1% calcium iodate, 50 parts of 0.2% peptide selenium, 350 parts of starch and 400 parts of montmorillonite.
The vitamin premixed feed is prepared from the following raw materials: 35 parts of vitamin A (50 ten thousand units), 130 parts of vitamin B, 245 parts of vitamin B, 650 parts of vitamin B, 19 parts of vitamin B12 (1%), 12 parts of vitamin D3 (50 ten thousand units), 160 parts of vitamin E (50%), 80 parts of nicotinamide (99%), 50 parts of pantothenic acid (92%) and 650 parts of rice hull powder.
Carrying out secondary granulation on 50% of the mixed material through a granulator, controlling the granulation temperature to be 55-60 ℃, controlling the modulation time to be 180 seconds, controlling the aperture of a circular mold to be 2.5, and controlling the compression ratio to be 1: and 4.5, granulating and cooling.
The effect of two-time granulation: the material is made into particles, so that the feed utilization efficiency of the weaned piglets is improved, diarrhea is reduced, the production performance is correspondingly improved, and the use of medicines in the breeding process is reduced.
And (5) uniformly mixing the granular material obtained in the step (4) with powder which is not granulated, and packaging to obtain the creep feed. Powder and granule mixing action: the powder is easy to teach the groove and has good food calling effect, the waste of the granular materials is less, the curing degree is high, the production performance of the piglets is improved, and the waste of the feed is reduced.
Test examples
320 weaned piglets in 21 days are selected in a Tiankang Hongsheng test base, wherein the proportion of male piglets to female piglets is half. Randomized into 4 groups of 8 replicates each, each replicate 10 pigs (half of a boar and a half of a boar). The control group is the powder and grain creep feed which is prepared by common one-time granulation, the test 1 group is the daily ration of the embodiment 1 of the invention, the test 2 group is the daily ration of the embodiment 2 of the invention, and the test 3 group is the daily ration of the embodiment 3 of the invention. The test period is 14 days, and the feeding scheme refers to a feeding scheme of 76215 Tiankangchongshengzhan creep feed:
food calling and feeding are started at 7 days of age, and the food calling and feeding are preferably carried out before the milk is eaten.
Feeding at least 6 tons every day, and illuminating for 18-24 hours.
Feeding materials 2 times every ton, and taking the materials for about half an hour to finish the process, thereby reducing waste and keeping freshness; the feeding amount is changed from 'three-finger work', 'four-finger work', 'five-finger work' to 'one-grab' for transition.
The trough is cleaned for 1 time every day, and rancidity and mildew are avoided.
No supplement trough is arranged in 5 places, and positioning food calling is well done.
Positions unsuitable for placing the feed supplement tank: near the drinking bowl, near the pig manure, below the heat preservation lamp, near the front leg of the sow and near the back leg of the sow.
The best placing position of the trough: the position near the outlet of the heat preservation box and near the middle of the sow nipple.
The skin, hair color, health degree, daily feed intake, daily gain, feed conversion ratio, diarrhea rate, survival rate and other indexes of the piglets are observed in the test process.
Data processing: data were counted using SPSS 10.0 statistical software and single factor analysis of variance was performed.
TABLE 1 piglet skin coat color score criteria
| Standard score | Skin scoring criteria | Gross color scoring criteria |
| 3 | Ruddy complexion | Bright and soft |
| 2 | Reddish colour | Weak brightness and messy parts |
| 1 | Whitening hair | Coarse, long and irregular |
TABLE 2 Effect of different creep feeds on growth Performance and appearance characteristics of piglets
And (3) analysis: the control group adopts a one-time granulating powder and granulating process, the feed intake is 285 g, the feed intake is 25-40 g lower than that of a test group, the daily gain is 222.6 g, the daily gain is 39.9-55.2 g lower than that of the test group, and the feed-meat ratio is 0.08-0.15. And 10 pigs have diarrhea phenomena of different degrees in the test period, and the survival rate is 98.75 percent. Skin color and hair color belong to the middle upper level.
In the group of the example 1, the daily feed intake is 315 g, the daily gain is 262.5 g, the feed-meat ratio is 1.2:1, 4 diarrhea occurs in the test period, the diarrhea is improved by adjusting the feeding times in time, and the death phenomenon does not occur. And the scores of skin color and hair color are higher than those of the control group.
In the group of the example 2, the daily feed intake is 325 g, the daily gain is 277.8 g, the feed-meat ratio is 1.17:1, 6 diarrhea occurs in the test period, the diarrhea is improved by adjusting the feeding times in time, and the death phenomenon does not occur. And the scores of skin color and hair color are higher than those of the control group.
In the group of the example 3, the daily feed intake is 310 g, the daily gain is 274.3 g, the feed-meat ratio is 1.13:1, 4 diarrhea occurs in the test period, the diarrhea is improved by adjusting the feeding times in time, and the death phenomenon does not occur. And the scores of skin color and hair color are higher than those of the control group.
The experimental conclusion shows that compared with the common one-time granulation creep feed, the feed intake and daily gain weight of piglets fed with the creep feed provided by the invention are obviously improved, the survival rate and the diarrhea resistance rate are well improved, and the hair color and skin color improving effects of the piglets are very obvious. Not only reduces the dosage in the feeding process, but also can increase the income for farmers.
Although the present invention has been described in detail with reference to the embodiments, it will be understood by those skilled in the art that various changes in the specific parameters of the embodiments may be made without departing from the spirit of the present invention, and a plurality of specific embodiments are formed, which are common variations of the present invention, and will not be described in detail herein.
Claims (7)
1. A preparation method of a piglet creep feed comprises the following steps:
(1) firstly, mixing and crushing corn and soybean meal according to a weight ratio of 45-55, and enabling 35-45% of crushed materials to pass through a 40-mesh sieve;
(2) performing expansion treatment on the mixed raw material obtained in the step (1) to ensure that the volume weight of the expanded mixed raw material reaches 450-500 g/L, cooling and then crushing again, wherein 55-65% of the crushed raw material can pass through a 60-mesh sieve;
(3) taking 55-60 parts by weight of the puffed material obtained in the step (2), uniformly mixing with 8-10 parts by weight of flour, 5-8 parts by weight of puffed soybeans, 3-5 parts by weight of fish meal, 4-5 parts by weight of sugar, 2-3 parts by weight of soybean oil, 1-3 parts by weight of stone powder and 1-2 parts by weight of monocalcium phosphate, granulating by using a granulator, cooling to room temperature, then crushing, and enabling 55-65% of crushed mixed material to pass through a 60-mesh sieve;
(4) adding 8-10 parts of whey powder, 2-3 parts of protein powder, 0.4-1 part of sodium chloride, 0.2-0.4 part of calcium formate, 0.8-1.2 parts of amino acid, 0.8-1.2 parts of trace element premixed feed and 2.5-3.5 parts of vitamin premixed feed into the material obtained in the step (3), uniformly mixing, and performing secondary granulation on 45-55% of the mixed material;
(5) and (3) finally, uniformly mixing the mixed material which is not granulated in the step (4) with the granular material prepared in the step (4) to obtain the powder-coated granular creep feed.
2. The preparation method of the piglet creep feed according to claim 1, wherein in the step (1), the standard No. 20 sieve plate is adopted for crushing.
3. The preparation method of the piglet creep feed according to claim 1, wherein in the step (2), the expansion treatment temperature is controlled to be 90-110 ℃; the second time of crushing, 10 standard sieve sheets were used.
4. The preparation method of the creep feed according to claim 1, wherein in the step (3), the granulation temperature is controlled to be 90-95 ℃, the tempering time is 180 seconds, the aperture of the circular mold is 2.5, and the compression ratio is 1: 4.5; and after granulation, the powder is crushed by using a No. 10 standard sieve sheet.
5. The preparation method of the piglet creep feed according to claim 1, wherein in the step (4), the secondary granulation temperature is controlled to be 55-60 ℃, the preparation time is 180 seconds, the aperture of the circular mold is 2.5, and the compression ratio is 1: 4.5.
6. the preparation method of the piglet creep feed according to claim 1, wherein in the step (4), the microelement pre-mixed feed is prepared from the following raw materials: 15-18 parts of organic copper, 200-280 parts of organic iron, 100-150 parts of acid-resistant zinc oxide, 20-30 parts of organic manganese, 20-30 parts of calcium iodate with the mass percent of 1% of effective components, 40-50 parts of 0.2% of peptide selenium, 250-350 parts of starch and 100-400 parts of montmorillonite.
7. The preparation method of the piglet creep feed according to claim 1, wherein in the step (4), the vitamin premix feed is prepared from the following raw materials: 25-35 parts of 50 ten thousand units of vitamin A, 120-30 parts of vitamin B, 235-45 parts of vitamin B, 640-50 parts of vitamin B, 126-19 parts of vitamin B with the mass percent of 1% of active ingredients, 310-12 parts of 50 ten thousand units of vitamin D, 120-160 parts of vitamin E with the mass percent of 50% of active ingredients, 60-80 parts of nicotinamide with the mass percent of 99% of active ingredients, 40-50 parts of pantothenic acid with the mass percent of 92% of active ingredients and 550-650 parts of rice hull powder.
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| CN112205531A (en) * | 2020-10-29 | 2021-01-12 | 重庆市万虹饲料有限公司 | Milk powder-containing medium-grain milk replacer for piglets |
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