CN111328930A - Functional premix for pregnant sows and preparation method thereof - Google Patents

Functional premix for pregnant sows and preparation method thereof Download PDF

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CN111328930A
CN111328930A CN202010241450.5A CN202010241450A CN111328930A CN 111328930 A CN111328930 A CN 111328930A CN 202010241450 A CN202010241450 A CN 202010241450A CN 111328930 A CN111328930 A CN 111328930A
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pregnant sows
premix
sows
feed
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易学武
刘建强
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Hunan Meilong Forage Technology Co ltd
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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
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    • A23K50/30—Feeding-stuffs specially adapted for particular animals for swines
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K10/00—Animal feeding-stuffs
    • 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
    • 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
    • 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
    • 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
    • A23K20/105—Aliphatic or alicyclic compounds
    • 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
    • A23K20/163—Sugars; Polysaccharides
    • 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
    • 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
    • A23K20/22—Compounds of alkali metals
    • 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
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    • A23K20/26—Compounds containing phosphorus
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
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    • A23K20/30—Oligoelements
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    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
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    • Y02P60/87—Re-use of by-products of food processing for fodder production

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Abstract

A functional premix for pregnant sows is prepared from the following raw materials in parts by weight: 2-3 parts of saccharomycetes, 25-30 parts of inulin, 20-25 parts of calcium carbonate, 12-18 parts of calcium hydrophosphate, 4-8 parts of potassium chloride, 4-10 parts of salt, 0.8-1.5 parts of vitamin additive, 1.5-2.5 parts of trace element additive, 1-3 parts of choline chloride and 12-20 parts of carrier. The functional premix for pregnant sows adopts the matching of inulin and yeast, is beneficial to improving the balance of intestinal flora of the sows, is suitable for symptoms of unsmooth intestinal tracts, constipation and the like of animals, improves the health conditions of pregnancy and parturition of the sows, and also has the advantages of enhancing the immunity of the animals and increasing the palatability of feed. The premix does not contain antibiotics, and is beneficial to reducing animal-derived antibiotic residues.

Description

Functional premix for pregnant sows and preparation method thereof
Technical Field
The invention relates to the technical field of pig feed, in particular to a functional premix for pregnant sows and a preparation method thereof.
Background
The embryonic development of the pregnant sow plays an important role in the weight of the newborn piglet. The pregnant sow has strong metabolism during pregnancy and slow fetal prophase development, so the requirement on the nutrition level during pregnancy is very high, the feed utilization rate can be reduced, meanwhile, the too high sow is easy to be over-fertilized, the embryonic death rate is increased, the number of born piglets is reduced, the next breeding cycle can be influenced, and the oestrus can be stopped; conversely, if the nutrition is insufficient, the litter size and birth weight are affected, as well as the milk performance during lactation.
With the improvement and optimization of the domestic pig breeds, the growth speed and the lean meat percentage of the pigs are greatly improved, the traditional pig raising method is effectively improved, and scientific pig raising becomes the fundamental place for improving the economic benefit. But people also encounter a plurality of problems which are difficult to solve in the production practice, wherein the constipation phenomenon of pregnant sows is very common and the harm is very large; on one hand, excrement fills the intestinal tract to press the birth canal and influence the birth of a fetus, and on the other hand, toxic and harmful substances generated by metabolism cannot be discharged in time to cause damage to sows, sow anorexia, weak constitution, weak labor, difficult birth or prolonged labor process, and dead fetus easily occurs. Constipation of sows is caused by many reasons, mainly due to physiological changes of pregnant sows, over-fatness, over-emaciation or lack of movement, too high or too low level of feed fiber, higher protein level and the like.
At present, the problem of constipation of pregnant sows is mainly solved by supplementing green feed and adding mineral epsom salt, but the existing method has the defects that when the feed is improperly used or drinking water is insufficient, the epsom salt can cause adverse reactions such as serious dehydration of an organism, reduction of palatability of the feed, reduction of lactation yield of the sows and the like, and the problems can not be fundamentally solved because the feed is easy to repeat after stopping taking the feed.
CN110623140A discloses a premix for pregnant sows and a preparation method thereof, wherein the premix for the pregnant sows comprises the following components in parts by weight: 20-40 parts of corn, 6-10 parts of peanut bran, 15-30 parts of inulin, 1-4 parts of salt, 1-5 parts of arginine, 5-10 parts of fructooligosaccharide, 3-8 parts of probiotics, 5-10 parts of xylooligosaccharide, 1-10 parts of selenium yeast, 1-12 parts of astragalus polysaccharide, 3-6 parts of organic chromium, 2-5 parts of valine, 2-5 parts of lysine, 1-5 parts of enramycin, 12-20 parts of an enzyme preparation, 10-15 parts of composite Chinese herbal medicine, 4-9 parts of fatty acid and 15-35 parts of coated composite vitamin. The premix has various raw materials and complex preparation process, and is difficult to solve the problem of constipation of the existing pregnant sows.
Therefore, how to develop the premix for the pregnant sow feed with low cost and good quality is a market demand and is also a research hotspot and difficulty of animal producers and researchers.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: overcomes the defects of the prior art, and provides a functional premix for pregnant sows and a preparation method thereof, wherein the premix has wide raw material sources and low cost, and can effectively prevent constipation of the pregnant sows.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a functional premix for pregnant sows is prepared from the following raw materials in parts by weight: 2-3 parts of saccharomycetes, 25-30 parts of inulin, 20-25 parts of calcium carbonate, 12-18 parts of calcium hydrophosphate, 4-8 parts of potassium chloride, 4-10 parts of salt, 0.8-1.5 parts of vitamin additive, 1.5-2.5 parts of trace element additive, 1-3 parts of choline chloride and 12-20 parts of carrier.
Preferably, the functional premix for the pregnant sows is prepared from the following raw materials in parts by weight: 2.5 parts of yeast, 30 parts of inulin, 20 parts of calcium carbonate, 15 parts of calcium hydrophosphate, 5 parts of potassium chloride, 6 parts of salt, 0.8 part of vitamin additive, 1.8 parts of trace element additive, 1.4 parts of choline chloride and 17.5 parts of carrier.
In an exemplary embodiment, the yeast is active dry yeast with a viable count of 2 hundred million/gram or more.
In one exemplary embodiment, the inulin is a byproduct obtained by removing proteins, colloids, crude fibers and minerals from rhizome of Jerusalem artichoke (also called jerusalem artichoke) by water extraction, ion exchange, membrane filtration, spray drying and other production processes, and is white powder, wherein the content of fructose is more than or equal to 75%, and the water content is less than 8%.
In an exemplary embodiment, the vitamin additive is a sow vitamin compound premix, and each kilogram of premix contains the following vitamins of VA: 40000-45000 KIU, VD: 10000-12000 KIU, VE: 80-160 g, VK3: 5-10 g, VB1 not less than 8g, VB2 not less than 25g, VB6 not less than 8g, VB12 not less than 80mg, nicotinic acid not less than 80g, pantothenic acid not less than 50g, and biotin not less than 1 g.
In an exemplary embodiment, the trace element additive comprises 30 to 60g/Kg of copper, 200 to 360g/Kg of iron, 180 to 260g/Kg of zinc, 120 to 160g/Kg of manganese, 0.8 to 3g/Kg of iodine, and 0.8 to 1.0g/Kg of selenium as mineral elements.
In an exemplary embodiment, the choline chloride is choline chloride having a choline content of greater than or equal to 50% (W/W).
In an exemplary embodiment, the carrier is bran powder, which is a byproduct of the processing of rice grains.
The functional premix for the pregnant sows is prepared by mixing 5-8% (W/W, weight percentage) of the total weight of the pregnant sow feed with a daily ration main material in the feed to prepare the pregnant sow feed.
The daily ration in the feed for pregnant sows consists of the following components in parts by weight: 55 parts of corn, 12 parts of soybean meal and 25 parts of wheat bran, wherein the daily ration accounts for 92-95% of the total weight of the pregnant sow feed.
The daily ration in the feed for pregnant sows consists of the following components in parts by weight: 49 parts of corn, 8 parts of soybean meal, 30 parts of wheat bran and 5 parts of puffed soybean, wherein the daily ration accounts for 92-95% of the total weight of the pregnant sow feed.
The technical scheme adopted for further solving the technical problems is as follows:
a preparation method of a functional premix for pregnant sows comprises the following steps:
1) premixing: mixing yeast, vitamin additive and microelement additive in proportion and stirring uniformly;
2) and (3) remixing: weighing inulin, calcium carbonate, calcium hydrophosphate, potassium chloride, salt, choline chloride and a carrier according to a proportion, adding the raw materials into the hopper premixed in the step 1) in batches, mixing again, and stirring uniformly;
3) packaging: and (3) packaging the functional premix prepared by remixing in the step 2) according to specifications in bags.
The functional premix for the pregnant sows has the beneficial effects that:
the functional premix for pregnant sows disclosed by the invention adopts the matching of inulin and saccharomycetes, so that the health conditions of pregnancy and delivery of sows are improved, wherein the saccharomycetes are taken as probiotic varieties which are approved by the regulation of the agricultural department and are rich in protein, nucleic acid, vitamins and various enzymes, and the gastrointestinal microbial system is improved, so that the gastrointestinal environment is stabilized, the gastrointestinal fermentation is regulated, the stability of pH is improved, a beneficial environment is provided for the proliferation of anaerobic beneficial flora, the decomposition, digestion, absorption and utilization of the intestines and stomach on feed nutrients are promoted, the comfort of the digestive tract of sows is promoted, and the functions of balancing intestinal flora of sows and the like are solved; meanwhile, the feed additive also has the advantages of enhancing the immunity of animals and increasing the palatability of the feed;
inulin, also known as inulin or natural fructans and fructooligosaccharides, is mainly present in compositae plants. As a prebiotic, inulin can not be digested and absorbed in the front section of the pig intestinal tract, can play a biological role in the rear section of the pig intestinal tract, can help to improve the balance of the sow intestinal flora, and is suitable for symptoms such as unsmooth animal intestinal tract and dry stool.
The invention adopts potassium chloride as electrolyte ions to maintain osmotic pressure in the sow, is beneficial to relieving stress of the sow and improving constipation.
The functional premix for pregnant sows disclosed by the invention is free of antibiotic addition, and is beneficial to reducing animal-derived antibiotic residues.
Detailed Description
The present invention is further illustrated by the following examples.
Comparative example
The conventional pregnant sow compound premix feed sold in the market is adopted, and the compound premix feed 8258 (the main raw materials are high-quality compound vitamins, compound trace elements, amino acids, calcium, phosphorus, salt, fish meal, enzyme-producing probiotics, compound enzyme preparation and novel plant extract; purchase link: https:// www.zhue.cn/goods-3080.html) for the pregnant sow sold in Bibang feed pig Yishop flagship stores in Shancheng is purchased in the application.
Example 1
The functional premix for the pregnant sows is prepared from the following raw materials in parts by weight: 2.5 parts of yeast, 30 parts of inulin, 20 parts of calcium carbonate, 15 parts of calcium hydrophosphate, 5 parts of potassium chloride, 6 parts of salt, 0.8 part of vitamin additive, 1.8 parts of trace element additive, 1.4 parts of choline chloride and 17.5 parts of carrier.
The yeast is active dry yeast with viable count more than or equal to 2 hundred million/g.
The inulin is a byproduct obtained by taking rhizome of jerusalem artichoke (also called jerusalem artichoke) as a raw material, removing protein, colloid, crude fiber and mineral substances, and carrying out production processes of water extraction, ion exchange, membrane filtration, spray drying and the like, and is white powder, wherein the content of fructose is more than or equal to 75 percent, and the moisture is less than 8 percent.
The vitamin additive is a sow vitamin compound premix, and each kilogram of premix contains the following vitamins of VA: 40000-45000 KIU, VD: 10000-12000 KIU, VE: 80-160 g, VK3: 5-10 g, VB1 not less than 8g, VB2 not less than 25g, VB6 not less than 8g, VB12 not less than 80mg, nicotinic acid not less than 80g, pantothenic acid not less than 50g, and biotin not less than 1 g.
The microelement additive contains 30-60 g/Kg of copper, 200-360 g/Kg of iron, 180-260 g/Kg of zinc, 120-160 g/Kg of manganese, 0.8-3 g/Kg of iodine and 0.8-1.0 g/Kg of selenium as mineral elements.
The choline chloride is choline chloride with choline content more than or equal to 50% (W/W).
The carrier is bran powder which is a byproduct of processing of rice grains.
The preparation method of the functional premix for the pregnant sows comprises the following steps:
1) premixing: mixing yeast, vitamin additive and microelement additive in proportion and stirring uniformly;
2) and (3) remixing: weighing inulin, calcium carbonate, calcium hydrophosphate, potassium chloride, salt, choline chloride and a carrier according to a proportion, adding the raw materials into the hopper premixed in the step 1) in batches, mixing again, and stirring uniformly;
3) packaging: and (3) packaging the functional premix prepared by remixing in the step 2) according to specifications in bags. The functional premix for the pregnant sows is prepared by mixing 8% (W/W, weight percentage) of the total weight of the pregnant sow feed with a daily ration main material in the feed to prepare the pregnant sow feed.
The daily ration in the feed for pregnant sows consists of the following components in parts by weight: 55 parts of corn, 12 parts of soybean meal and 25 parts of wheat bran, wherein the daily ration accounts for 92% of the total weight of the pregnant sow feed.
The premix of the control example and the example 1 and the feed for pregnant sows prepared from the premix are used for feeding comparison tests of pregnant sows, and the specific test materials and methods are as follows:
1 test animal
30 sows were selected from 120 sows in the late gestation period (day 35 of gestation) according to gestation, breed and delivery date, and were randomly divided into 2 groups of 15 sows each.
2 test daily ration
The test was divided into 2 treatments, i.e., a control group (using the feed for pregnant sows of the control example) and a test group (using the feed for pregnant sows of example 1). The raw material composition and the nutrient content of the pregnant sow feed of the control group and the test group are shown in table 1.
Table 1 test daily ration composition
Figure RE-GDA0002487185100000061
Figure RE-GDA0002487185100000071
3 feeding management
The test is carried out in a large pig farm in Hunan, the feeding date is from 35 days of gestation to delivery, and the pigs only eat and drink water freely. The temperature in the house was 28 ℃ and the humidity was 55%. Each ring has a separate trough and drinker.
4 determination of indices and laboratory analysis
And (4) determining the litter size of the sow, the birth weight of the piglet, the constipation number of the sow and the daily feed intake of the sow. Conventional analysis of feed analytical determinations were carried out according to the method provided by AOAC (1990). Amino acids were measured with an amino acid autoanalyzer.
5 statistical analysis of data
And the test data is sorted by an EXCEL table and then analyzed and processed by SAS8.0 software.
TABLE 2 Effect of functional premix on the production Performance of pregnant sows
Figure RE-GDA0002487185100000072
As can be seen from table 2, the average daily feed intake of pregnant sows fed with the feed for pregnant sows consisting of the functional premix for pregnant sows of example 1 was 2.75kg, compared to the control group, which was 26.15% higher (P <0.05) than that of the control group (2.18 kg). Meanwhile, the constipation rate of the sows fed to the test group is as low as 7.96 percent and is extremely lower than 65.37 percent of the control group (P is less than 0.01); it is shown that the functional premix for pregnant sows in example 1 significantly improves constipation of pregnant sows, and the applicant has analyzed the phenomenon: as the inulin in the functional premix for the pregnant sows, also called inulin or natural fructan and fructo-oligosaccharide, is used as a prebiotic, the inulin can not be digested and absorbed in the front section of the intestinal tract of the sows and can play a biological role in the rear section of the intestinal tract of the pigs, so that the inulin can be helpful for improving the balance of the intestinal flora of the sows and is suitable for symptoms of unsmooth intestinal tract of animals, constipation and the like; the yeast matched with inulin for use is rich in protein, nucleic acid, vitamins and various enzymes, and has the functions of improving the gastrointestinal microflora, stabilizing the gastrointestinal tract environment, regulating and controlling gastrointestinal fermentation, improving the stability of pH, providing a beneficial environment for the proliferation of anaerobic beneficial flora, promoting the decomposition, digestion, absorption and utilization of feed nutrients by the intestines and stomach, promoting the comfort of the digestive tract of sows, solving the problem of the balance of intestinal flora of sows and the like; meanwhile, the premix feed has the advantages of enhancing animal immunity and increasing feed palatability, and compared with the existing premix feed for pregnant sows, the inulin can improve the intestinal environment of pregnant sows and further reduce the raw material cost of the premix feed for pregnant sows.
In addition, the litter size and weight average of piglets of the sows fed with the pregnant sow feed consisting of the functional premix for pregnant sows in example 1 are superior to those of the control group fed with the pregnant sow feed added with the conventional pregnant sow composite premix.
Examples 2 to 5
The functional premixes of examples 2-5 for pregnant sows are different from those of example 1 mainly in the addition ratio of the components of the functional premix, and the component ratios of the functional premixes for pregnant sows are shown in table 3.
Table 3 ingredient ratio table of functional premix for pregnant sows of examples 2 to 4
Figure RE-GDA0002487185100000081
Figure RE-GDA0002487185100000091
The functional premix for the pregnant sows in the embodiments 2 to 5 is prepared by mixing 8% (W/W, weight percentage) of the total weight of the pregnant sow feed with a daily ration main material in the feed to prepare the pregnant sow feed, wherein the daily ration in the pregnant sow feed is the same as that in the embodiment 1.
The premix prepared in the control example and the examples 2-4 and the pregnant sow feed prepared from the premix are used for feeding contrast tests of pregnant sows, and the specific test materials and methods are as follows:
table 4 examples 2-4 effects of functional premixes for pregnant sows on the performance of pregnant sows
Figure RE-GDA0002487185100000092
As can be seen from Table 4, compared with the control group, the average daily feed intake of the pregnant sows fed with the pregnant sow feed consisting of the functional premix for pregnant sows in examples 2 to 4 is increased by 0.37 to 0.54kg, and correspondingly (2.18kg) is increased by 16.9 to 24.78% (P < 0.05). Meanwhile, the constipation rate of the sows fed to the test group is reduced to be below 9.34 percent and is extremely lower than 65.37 percent of the control group (P is less than 0.01); the functional premix for pregnant sows in examples 2-4 shows that constipation of pregnant sows is remarkably improved.
In addition, the applicant, in making a functional premix optimization experiment for pregnant sows, also found that: when the inulin is added in an amount higher than 30% by weight of the total premix, the pregnant sows are prone to occasional or continuous diarrhea with increasing inulin addition. When the inulin content is lower than 20% of the total weight of the premix, even if yeast is added in large amount (more than 3% of the premix), the constipation adjusting effect on pregnant sows is still poor (namely, 30% of pregnant sows in a test group have 1-2 constipation phenomena in the test period), and especially under the condition of not adding yeast, nearly 50% of pregnant sows have constipation phenomena in the test period.
According to the different species and physiological conditions of the pregnant sows, the addition amounts (percentage of the total weight of the premix) of the yeast and the inulin in the functional premix for the pregnant sows can be respectively 2.6 percent and 27 percent, 2.2 percent and 30 percent, 2.4 percent and 28 percent; the above technical features can be understood and implemented by those skilled in the art through the text description, and therefore, the accompanying drawings are not needed to be described.

Claims (10)

1. A functional premix for pregnant sows is characterized by being prepared from the following raw materials in parts by weight: 2-3 parts of saccharomycetes, 25-30 parts of inulin, 20-25 parts of calcium carbonate, 12-18 parts of calcium hydrophosphate, 4-8 parts of potassium chloride, 4-10 parts of salt, 0.8-1.5 parts of vitamin additive, 1.5-2.5 parts of trace element additive, 1-3 parts of choline chloride and 12-20 parts of carrier.
2. The functional premix for pregnant sows as claimed in claim 1, which is prepared from the following raw materials in parts by weight: 2.5 parts of yeast, 30 parts of inulin, 20 parts of calcium carbonate, 15 parts of calcium hydrophosphate, 5 parts of potassium chloride, 6 parts of salt, 0.8 part of vitamin additive, 1.8 parts of trace element additive, 1.4 parts of choline chloride and 17.5 parts of carrier.
3. The functional premix for pregnant sows according to claim 1 or 2, wherein the yeast is active dry yeast with viable count of 2 hundred million/g or more.
4. The functional premix for pregnant sows as claimed in claim 1 or 2, wherein inulin is a by-product obtained by removing proteins, gums, crude fibers and minerals from the rhizome of Jerusalem artichoke by water extraction, ion exchange, membrane filtration, spray drying, etc., and is in the form of white powder with fructose content not less than 75% and moisture content less than 8%.
5. The functional premix for pregnant sows as claimed in claim 1 or 2, wherein the vitamin additive is a sow vitamin complex premix, and the vitamin contained in each kilogram of premix is VA: 40000-45000 KIU, VD: 10000-12000 KIU, VE: 80-160 g, VK3：5～10g, VB1 is more than or equal to 8g, VB2 is more than or equal to 25g, VB6 is more than or equal to 8g, VB12 is more than or equal to 80mg, nicotinic acid is more than or equal to 80g, pantothenic acid is more than or equal to 50g, and biotin is more than or equal to 1 g.
6. The functional premix for pregnant sows as claimed in claim 1 or 2, wherein the trace element additive comprises 30-60 g/Kg of copper, 200-360 g/Kg of iron, 180-260 g/Kg of zinc, 120-160 g/Kg of manganese, 0.8-3 g/Kg of iodine and 0.8-1.0 g/Kg of selenium.
7. The functional premix for pregnant sows as claimed in claim 1 or 2, wherein the choline chloride is choline chloride having choline content of 50% (W/W) or more, and the carrier is rice husk powder, which is a byproduct after processing of rice grains.
8. The functional premix for pregnant sows as claimed in claim 1 or 2, wherein the functional premix for pregnant sows is prepared by mixing 5-8% (W/W, weight percentage) of the total weight of the feed for pregnant sows with a daily ration main material in the feed to prepare the feed for pregnant sows.
9. The functional premix for pregnant sows as claimed in claim 8, wherein the daily ration in the feed for pregnant sows accounts for 92-95% of the total weight of the feed for pregnant sows, and the daily ration comprises the following components in parts by weight: 55 parts of corn, 12 parts of soybean meal and 25 parts of wheat bran, or the daily ration in the feed for pregnant sows consists of the following components in parts by weight: 49 parts of corn, 8 parts of soybean meal, 30 parts of wheat bran and 5 parts of puffed soybean.
10. A method of preparing a functional premix for pregnant sows as claimed in any of claims 1 to 7, comprising the steps of:
1) premixing: mixing yeast, vitamin additive and microelement additive in proportion and stirring uniformly;
2) and (3) remixing: weighing inulin, calcium carbonate, calcium hydrophosphate, potassium chloride, salt, choline chloride and a carrier according to a proportion, adding the raw materials into the hopper premixed in the step 1) in batches, mixing again, and stirring uniformly;
3) packaging: and (3) packaging the functional premix prepared by remixing in the step 2) according to specifications in bags.
CN202010241450.5A 2020-03-31 2020-03-31 Functional premix for pregnant sows and preparation method thereof Pending CN111328930A (en)

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Application publication date: 20200626