CN112042822A - Compound feed for improving reproductive performance of sows in lactation period - Google Patents
Compound feed for improving reproductive performance of sows in lactation period Download PDFInfo
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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- A23K50/30—Feeding-stuffs specially adapted for particular animals for swines
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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
- A23K10/10—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
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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
- A23K10/10—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
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
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- 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
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- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
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- A23K20/10—Organic substances
- A23K20/142—Amino acids; Derivatives thereof
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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
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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
- A23K20/174—Vitamins
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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- A23K—FODDER
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- A23K20/20—Inorganic substances, e.g. oligoelements
- 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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Abstract
The invention belongs to the technical field of feeds, and particularly relates to a compound feed for improving reproductive performance of sows in a lactation period. Comprises the following components: corn, puffed corn, wood fiber, soybean oil, puffed soybean, fermented soybean meal, peruvian fish meal, L-lysine hydrochloride, DL-methionine, L-threonine, glutamine, sodium chloride, calcium carbonate, monocalcium phosphate, 60% choline chloride, saccharomyces cerevisiae cell walls, ethoxyquinoline, a complex enzyme preparation, bacillus licheniformis, bacillus subtilis, a sow compound vitamin and a sow compound mineral element. The feed can improve the milk yield of sows, the daily gain and the weaning weight of piglets, and improve the reproductive performance of sows and the growth performance of piglets; effectively preventing constipation of lactating sows, reducing death caused by clostridium perfringens and reducing the renewal rate of sows; the high protein and high energy design achieves the effects of protecting the sows and prolonging the service life of the sows, and improves the production benefit.
Description
Technical Field
The invention belongs to the technical field of feeds, and particularly relates to a compound feed for improving reproductive performance of sows in a lactation period.
Background
The feed provides all nutrients except water for the maintenance needs and production needs of the pigs. With the continuous improvement of breeding technology and breeding level, the litter size of sows is increased, and the sows need more nutrition to maintain high reproductive performance.
At present, no special feed for improving the reproductive performance of sows in the lactation period is available in the market.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the compound feed for improving the reproductive performance of the sows in the lactation period, which can improve the milk yield and the milk quality of the sows in the lactation period, improve the growth performance of piglets, effectively prevent constipation of the lactating sows, reduce the weight loss of the sows in the lactation period, promote the quick recovery of body conditions, protect the sows and prolong the service life of the sows.
The compound feed for improving the reproductive performance of the sows in the lactation period consists of the following components in parts by weight:
440 parts of 380-fold corn, 220 parts of 180-fold expanded corn, 22-28 parts of wood fiber, 20-35 parts of soybean oil, 170 parts of 120-fold expanded soybean, 40-90 parts of fermented soybean meal, 55-65 parts of Peru fish meal, 8-11 parts of L-lysine hydrochloride, 1.8-2.4 parts of DL-methionine, 2.5-3.5 parts of L-threonine and 8-12 parts of glutamine, 1-3 parts of sodium chloride, 11-12 parts of calcium carbonate, 9-12 parts of monocalcium phosphate, 2-3 parts of 60% choline chloride, 1.5-2.5 parts of saccharomyces cerevisiae cell wall, 0.15-0.25 part of ethoxyquinoline, 0.15-0.25 part of complex enzyme preparation, 0.1-0.2 part of 40 hundred million CFU/g bacillus subtilis, 0.1-0.2 part of 35 hundred million CFU/g bacillus licheniformis, 0.3 part of complex vitamin for sows and 2 parts of complex mineral elements for sows.
Preferably, the compound feed for improving the reproductive performance of the lactating sows consists of the following components in parts by weight:
429 parts of corn, 200 parts of puffed corn, 25 parts of wood fiber, 32 parts of soybean oil, 120 parts of puffed soybean, 80 parts of fermented soybean meal, 60 parts of Peru fish meal, 8 parts of L-lysine hydrochloride, 2.2 parts of DL-methionine, 3.3 parts of L-threonine, 10 parts of glutamine, 2 parts of sodium chloride, 11 parts of calcium carbonate, 10 parts of calcium dihydrogen phosphate, 2.5 parts of 60% choline chloride, 2 parts of saccharomyces cerevisiae cell wall, 0.2 part of ethoxyquinoline, 0.2 part of complex enzyme preparation, 0.15 part of bacillus subtilis (40 hundred million CFU/g), 0.15 part of bacillus (35 hundred percent CFU/g), 0.3 part of complex vitamin for sows and 2 parts of complex mineral elements for sows.
Wherein:
the puffed corn is obtained by high-temperature puffing after corn is crushed, and consumption absorption rate, palatability and cohesiveness are improved.
Wood fibers are commercially available products.
The complex enzyme preparation is purchased from a root-source organism.
Ethoxyquin is a class 5 antioxidant disclosed by national people's republic of China agricultural rural bulletin No. 2625.
The compound vitamin for the sow comprises the following components in parts by weight: 12-16 parts of 500000IU/g vitamin A, 500000IU/g vitamin D33-5 parts, 360 parts of 50% vitamin E340-.
Preferably, the compound vitamin for the sows consists of the following components in parts by weight: 14 parts of 500000IU/g vitamin A, 34 parts of 500000IU/g vitamin D, 350 parts of 50% vitamin E, 34 parts of 50% vitamin K, 115 parts of vitamin B, 210 parts of vitamin B, 64 parts of vitamin B, 123 parts of 1% vitamin B, 40 parts of D-calcium pantothenate, 70 parts of nicotinamide, 50 parts of biotin, 16 parts of folic acid, 2 parts of ethoxyquinoline and 418 parts of dephenolized cottonseed protein.
The composite mineral element for the sow comprises the following components in parts by weight: 4-6 parts of basic copper chloride, 90-110 parts of ferrous fumarate, 90-110 parts of ferric glycinate, 40-60 parts of zinc methionine, 180 parts of manganese methionine, 40-60 parts of calcium iodate, 40-60 parts of selenium yeast and 380 parts of calcium hydrophosphate.
Preferably, the compound mineral elements for the sows consist of the following components in parts by weight: 5 parts of basic copper chloride, 100 parts of ferrous fumarate, 100 parts of ferric glycinate, 50 parts of zinc methionine, 200 parts of manganese methionine, 50 parts of calcium iodate, 50 parts of yeast selenium and 395 parts of calcium hydrophosphate.
The method comprises the following steps of (1) premixing vitamins by using dephenolized cottonseed protein in compound vitamins of sows as a carrier, and uniformly mixing the vitamins in a compound feed; the sow uses calcium hydrogen phosphate in the compound mineral elements as a carrier, and the mineral elements are premixed to be evenly mixed in the batch.
Compared with the prior art, the invention has the following advantages:
(1) the feed can effectively improve the content of glutamine in plasma and milk of the lactating sow, simultaneously improve the concentration of proline, citrulline, valine, isoleucine, leucine and arginine in the plasma, and obviously increase the milk yield of the sow, the daily gain and the weaning weight of the piglet, thereby improving the reproductive performance of the sow and the growth performance of the piglet.
(2) The feed can effectively prevent constipation of lactating sows and reduce death caused by clostridium perfringens, thereby reducing the renewal rate of the sows.
(3) The feed disclosed by the invention is designed with high protein and high energy, can promote the development of the mammary gland of the sow and increase the milk yield, and can effectively solve the problem of insufficient milk caused by high yield of the modern sow; the weight loss of the sow is reduced during lactation, and the body condition is quickly recovered, so that the effects of protecting the sow, prolonging the service life of the sow and improving the production benefit are achieved.
Detailed Description
The present invention will be further described with reference to specific embodiments, but the present invention is not limited thereto.
The raw materials used in the examples were all commercially available raw materials except for those specifically mentioned.
Example 1
The compound feed for improving the reproductive performance of the sows in the lactation period consists of the following components in parts by weight:
429 parts of corn, 200 parts of puffed corn, 25 parts of wood fiber, 32 parts of soybean oil, 120 parts of puffed soybean, 80 parts of fermented soybean meal, 60 parts of Peru fish meal, 8 parts of L-lysine hydrochloride, 2.2 parts of DL-methionine, 3.3 parts of L-threonine, 10 parts of glutamine, 2 parts of sodium chloride, 11 parts of calcium carbonate, 10 parts of calcium dihydrogen phosphate, 2.5 parts of 60% choline chloride, 2 parts of saccharomyces cerevisiae cell wall, 0.2 part of ethoxyquinoline, 0.2 part of complex enzyme preparation, 0.15 part of bacillus subtilis (40 hundred million CFU/g), 0.15 part of bacillus (35 hundred percent CFU/g), 0.3 part of complex vitamin for sows and 2 parts of complex mineral elements for sows.
Wherein the content of the first and second substances,
the compound vitamin for the sows consists of the following components in parts by weight: 14 parts of 500000IU/g vitamin A, 34 parts of 500000IU/g vitamin D, 350 parts of 50% vitamin E, 34 parts of 50% vitamin K, 115 parts of vitamin B, 210 parts of vitamin B, 64 parts of vitamin B, 123 parts of 1% vitamin B, 40 parts of D-calcium pantothenate, 70 parts of nicotinamide, 50 parts of biotin, 16 parts of folic acid, 2 parts of ethoxyquinoline and 418 parts of dephenolized cottonseed protein.
The composite mineral element for the sow comprises the following components in parts by weight: 5 parts of basic copper chloride, 100 parts of ferrous fumarate, 100 parts of ferric glycinate, 50 parts of zinc methionine, 200 parts of manganese methionine, 50 parts of calcium iodate, 50 parts of yeast selenium and 395 parts of calcium hydrophosphate.
Example 2
The compound feed for improving the reproductive performance of the sows in the lactation period consists of the following components in parts by weight:
424 parts of corn, 200 parts of puffed corn, 25 parts of wood fiber, 22 parts of soybean oil, 170 parts of puffed soybean, 45 parts of fermented soybean meal, 60 parts of Peru fish meal, 8 parts of L-lysine hydrochloride, 2.2 parts of DL-methionine, 3.3 parts of L-threonine, 10 parts of glutamine, 2 parts of sodium chloride, 11 parts of calcium carbonate, 10 parts of calcium dihydrogen phosphate, 2.5 parts of 60% choline chloride, 2 parts of saccharomyces cerevisiae cell wall, 0.2 part of ethoxyquinoline, 0.2 part of complex enzyme preparation, 0.15 part of bacillus subtilis (40 hundred million CFU/g), 0.15 part of bacillus (35 hundred percent CFU/g), 0.3 part of complex vitamin for sows and 2 parts of complex mineral elements for sows.
Wherein the content of the first and second substances,
the compound vitamin for the sows consists of the following components in parts by weight: 14 parts of 500000IU/g vitamin A, 34 parts of 500000IU/g vitamin D, 350 parts of 50% vitamin E, 34 parts of 50% vitamin K, 115 parts of vitamin B, 210 parts of vitamin B, 64 parts of vitamin B, 123 parts of 1% vitamin B, 40 parts of D-calcium pantothenate, 70 parts of nicotinamide, 50 parts of biotin, 16 parts of folic acid, 2 parts of ethoxyquinoline and 418 parts of dephenolized cottonseed protein.
The composite mineral element for the sow comprises the following components in parts by weight: 5 parts of basic copper chloride, 100 parts of ferrous fumarate, 100 parts of ferric glycinate, 50 parts of zinc methionine, 200 parts of manganese methionine, 50 parts of calcium iodate, 50 parts of yeast selenium and 395 parts of calcium hydrophosphate.
Evaluation of application effects:
the comparative feeding test of the sow lactation stage is carried out by the cooperation of the company and the Laiwanlu improved variety pig breeding limited company. Test results show that the feed promotes the development of the mammary gland of the sow, increases the milk yield, and can effectively solve the problem of insufficient milk caused by high yield of the modern sow; the weight loss of the sow is reduced during lactation, the body condition is quickly recovered, and the productivity is greatly improved; can obviously improve the feed intake, litter size, litter weight, weaning litter size and weaning litter weight of the sow, and has considerable economic benefit. Therefore, the compound feed for improving the reproductive performance of the sows in the lactation period is very worthy of being popularized and applied in various large farms and farmers.
1. Materials and methods
1.1 selection of test materials: the test group is the compound feed for improving the reproductive performance of the sows in the lactation period in example 1, and the control group is products sold by a certain feed factory in a pig farm. Example 1 formula composition of a compound feed for improving reproductive performance of lactating sows is shown in table 1.
TABLE 1
1.2 example 1 the nutritional ingredients (per kg) of the formula feed for improving reproductive performance of lactating sows are shown in table 2.
TABLE 2
| Nutritional index | Content (wt.) |
| Crude protein (%) | 19.14 |
| Digestive energy Kcal/kg of pig | 3449 |
| Moisture (%) | 11.01 |
| Dry matter (%) | 88.99 |
| Crude fat (%) | 8.16 |
| Crude fiber (%) | 4.71 |
| Coarse ash (%) | 5.32 |
| Calcium (%) | 0.82 |
| Total phosphorus (%) | 0.69 |
| Available phosphorus (%) | 0.53 |
| Sodium chloride (%) | 0.36 |
| Porcine effective lysine (%) | 1.62 |
| Porcine effective methionine (%) | 0.52 |
| Porcine effective methionine + cystine (%) | 0.75 |
| Porcine effective threonine (%) | 0.9 |
| Porcine effective tryptophan (%) | 0.17 |
| Pig effective valine (%) | 0.72 |
| Porcine effective isoleucine (%) | 0.62 |
1.3 selection and grouping of test animals
The test is carried out from 16 days 3 and 16 days 2019 to 10 days 4 and 2019, 42 multiparous pregnant sows with similar gestation times, same-period conception and similar health conditions are selected and randomly divided into two groups, and 21 sows in the test group and the control group are selected. All pigs tested were grown up binary sows.
1.4 Breeding management
Sow observation and numbering are carried out in a pre-test period of 5 days, and transition of test materials is carried out. In the period of normal test, the reference group is respectively fed with corresponding test daily ration, 3 times of feeding are carried out every day, and in the process, except that the feeding of the sows is properly limited within 6 days on the day of farrowing, the sows freely take food and drink water. Clean the colony house every morning. Daily feed intake and health of the sows were recorded daily. Before and after the test, the sows are weighed on an empty stomach in the morning, the litter size, the total weight, the litter size and the weight of the litter are counted during the test, and the total consumption of the test materials is counted.
1.5 test items:
the initial weight of the sows, the final weight of the sows, the feed consumption of each sow in the test group and the control group, the litter size, the weaning litter size and the litter size of the weaning litter are recorded in each test group.
2 results and analysis:
2.1 conditions of the sows and piglets tested, see Table 3.
TABLE 3 conditions of the sows and piglets tested
As seen from table 3, the weight loss of the sows in the test group was 18.6% lower than that of the control group; the feed intake of the sows is improved by 9.6 percent in the test group compared with the control group, the litter size is increased, and the feed intake of the test group is improved by 11.3 percent in the test group compared with the control group; the birth nest alive young weight is increased by 11.9 percent in the test group compared with the control group; the litter size of weaned litters is increased by 15.1 percent in the test group compared with the control group; the weight of the weaned litter is increased by 14.3 percent compared with the control group.
3 small knot
Tests show that the compound feed for improving the reproductive performance of the sows in the lactation period can obviously reduce the weight loss of the sows in the lactation period, obviously improve the feed intake of the sows, the litter size, the litter weight, the weaning litter size and the weaning litter weight, and has considerable economic benefit. Therefore, the compound feed for improving the reproductive performance of the sows in the lactation period is very worthy of being popularized and applied in various large farms and farmers.
Claims (6)
1. The compound feed for improving the reproductive performance of sows in the lactation period is characterized in that: the composition comprises the following components in parts by weight:
440 parts of 380-fold corn, 220 parts of 180-fold expanded corn, 22-28 parts of wood fiber, 20-35 parts of soybean oil, 170 parts of 120-fold expanded soybean, 40-90 parts of fermented soybean meal, 55-65 parts of Peru fish meal, 8-11 parts of L-lysine hydrochloride, 1.8-2.4 parts of DL-methionine, 2.5-3.5 parts of L-threonine and 8-12 parts of glutamine, 1-3 parts of sodium chloride, 11-12 parts of calcium carbonate, 9-12 parts of monocalcium phosphate, 2-3 parts of 60% choline chloride, 1.5-2.5 parts of saccharomyces cerevisiae cell wall, 0.15-0.25 part of ethoxyquinoline, 0.15-0.25 part of complex enzyme preparation, 0.1-0.2 part of 40 hundred million CFU/g bacillus subtilis, 0.1-0.2 part of 35 hundred million CFU/g bacillus licheniformis, 0.3 part of complex vitamin for sows and 2 parts of complex mineral elements for sows.
2. The compound feed for improving reproductive performance of lactating sows according to claim 1, wherein the compound feed comprises: the composition comprises the following components in parts by weight:
429 parts of corn, 200 parts of puffed corn, 25 parts of wood fiber, 32 parts of soybean oil, 120 parts of puffed soybean, 80 parts of fermented soybean meal, 60 parts of Peru fish meal, 8 parts of L-lysine hydrochloride, 2.2 parts of DL-methionine, 3.3 parts of L-threonine, 10 parts of glutamine, 2 parts of sodium chloride, 11 parts of calcium carbonate, 10 parts of calcium dihydrogen phosphate, 2.5 parts of 60% choline chloride, 2 parts of saccharomyces cerevisiae cell wall, 0.2 part of ethoxyquinoline, 0.2 part of complex enzyme preparation, 0.15 part of 40 hundred million CFU/g bacillus subtilis, 0.15 part of 35 hundred million CFU/g bacillus licheniformis, 0.3 part of composite vitamin for sow and 2 parts of composite mineral elements for sow.
3. The compound feed for improving reproductive performance of lactating sows according to claim 1 or 2, wherein: the compound vitamin for the sow comprises the following components in parts by weight:
12-16 parts of 500000IU/g vitamin A, 500000IU/g vitamin D33-5 parts, 360 parts of 50% vitamin E340-.
4. The compound feed for improving reproductive performance of lactating sows as claimed in claim 3, wherein: the compound vitamin for the sow comprises the following components in parts by weight:
14 parts of 500000IU/g vitamin A, 34 parts of 500000IU/g vitamin D, 350 parts of 50% vitamin E, 34 parts of 50% vitamin K, 115 parts of vitamin B, 210 parts of vitamin B, 64 parts of vitamin B, 123 parts of 1% vitamin B, 40 parts of D-calcium pantothenate, 70 parts of nicotinamide, 50 parts of biotin, 16 parts of folic acid, 2 parts of ethoxyquinoline and 418 parts of dephenolized cottonseed protein.
5. The compound feed for improving reproductive performance of lactating sows according to claim 1 or 2, wherein: the composite mineral element for the sow comprises the following components in parts by weight:
4-6 parts of basic copper chloride, 90-110 parts of ferrous fumarate, 90-110 parts of ferric glycinate, 40-60 parts of zinc methionine, 180 parts of manganese methionine, 40-60 parts of calcium iodate, 40-60 parts of selenium yeast and 380 parts of calcium hydrophosphate.
6. The compound feed for improving reproductive performance of lactating sows as claimed in claim 5, wherein the compound feed comprises: the composite mineral element for the sow comprises the following components in parts by weight:
5 parts of basic copper chloride, 100 parts of ferrous fumarate, 100 parts of ferric glycinate, 50 parts of zinc methionine, 200 parts of manganese methionine, 50 parts of calcium iodate, 50 parts of yeast selenium and 395 parts of calcium hydrophosphate.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113615774A (en) * | 2021-08-18 | 2021-11-09 | 正大康地(开封)生物科技有限公司 | Lactating sow feed without fish meal and preparation method thereof |
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| CN103750055A (en) * | 2014-01-24 | 2014-04-30 | 山东邦基饲料有限公司 | Special feed for sows in suckling period |
| CN108740456A (en) * | 2018-09-25 | 2018-11-06 | 莱阳和美华饲料有限责任公司 | A kind of lactating sow feed and preparation method thereof |
| CN109221633A (en) * | 2018-08-29 | 2019-01-18 | 山东邦基饲料有限公司 | Milking sow mixed feeding complete feed |
| CN109497315A (en) * | 2019-01-14 | 2019-03-22 | 重庆汇光饲料有限公司 | Improve the biological fermentation feed and the preparation method and application thereof of sow reproductive performance |
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2020
- 2020-09-14 CN CN202010959956.XA patent/CN112042822A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103750055A (en) * | 2014-01-24 | 2014-04-30 | 山东邦基饲料有限公司 | Special feed for sows in suckling period |
| CN109221633A (en) * | 2018-08-29 | 2019-01-18 | 山东邦基饲料有限公司 | Milking sow mixed feeding complete feed |
| CN108740456A (en) * | 2018-09-25 | 2018-11-06 | 莱阳和美华饲料有限责任公司 | A kind of lactating sow feed and preparation method thereof |
| CN109497315A (en) * | 2019-01-14 | 2019-03-22 | 重庆汇光饲料有限公司 | Improve the biological fermentation feed and the preparation method and application thereof of sow reproductive performance |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113615774A (en) * | 2021-08-18 | 2021-11-09 | 正大康地(开封)生物科技有限公司 | Lactating sow feed without fish meal and preparation method thereof |
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