CN109123184A - A kind of laying duck mixed feed improving laying duck immunity - Google Patents
A kind of laying duck mixed feed improving laying duck immunity Download PDFInfo
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- CN109123184A CN109123184A CN201810971664.0A CN201810971664A CN109123184A CN 109123184 A CN109123184 A CN 109123184A CN 201810971664 A CN201810971664 A CN 201810971664A CN 109123184 A CN109123184 A CN 109123184A
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- laying duck
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- feed
- mixed feed
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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
- A23K50/70—Feeding-stuffs specially adapted for particular animals for birds
- A23K50/75—Feeding-stuffs specially adapted for particular animals for birds for poultry
-
- 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
-
- 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
- A23K20/142—Amino acids; Derivatives thereof
-
- 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
-
- 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
- A23K20/10—Organic substances
- A23K20/189—Enzymes
-
- 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
-
- 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
Abstract
The invention discloses a kind of mixed feeds for improving laying duck laying period immunity, it calculates in percentage by weight, including the following raw material: corn 45%-50%, wheat-middlings 10%-15%, dregs of beans 20%-22%, corn protein powder 4%-6%, mountain flour 8%-9%, calcium monohydrogen phosphate 0.8%-1%, Chinese herb feed additive 1%-2%, probiotics 0.01%-0.02%, premix 1%-1.5%.Laying duck laying period mixed feed nutrition science of the invention is reasonable, laying duck nutritional need can sufficiently be met, Chinese herb astragalus, cortex cinnamomi, Rhizoma Atractylodis Macrocephalae, Radix Codonopsis, radix bupleuri, honeysuckle, cordate houttuynia, Radix Glycyrrhizae, dried orange peel and probiotics chitosan, bacillus licheniformis, bacillus subtilis are added in feed, can effectively be enhanced laying duck immunity of organisms, the growth for inhibiting disease microorganism, be improved laying duck to the digestive utilization ratio of feed.
Description
Technical field
The present invention relates to a kind of laying duck laying period mixed feed, in particular to a kind of laying duck immunity that can be improved
Mixed feed.The present invention is opened by Hubei Shendan Health Food Co., Ltd. (agriculture egg processing key lab of rural area portion) research
It distributes into.
Background technique
Tradition prevention disease and the method for treating disease are that various antibiotics are added in feed in laying duck cultivation,
But medicament residue, the drug resistance for enhancing disease bacterium can be generated using the drug of antibiotics in feed for a long time, makes animal body certainly
The difficulty of the treatment of the immunity degradation, disease of body is increasing.With country to food health and environmental protection increasingly
Pay attention to, many is prevented or restricted from animal and fowl fodder also to go out in succession using the laws and regulations of antibiotic and other chemical synthetic drugs
Platform forbids abuse of antibiotics to have become a kind of trend in the breeding process.In intensive, scale cultivation, disease
Probability of happening is big, and the probability of happening for reducing disease prevents outer, immunity of the raising animal itself to disease other than using drug
It is also a kind of method of effectively prevention disease.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of raising egg in view of the deficiency of the prior art
The laying duck laying period mixed feed of duck immunity, laying duck immunity is improved using Chinese herb feed additive and probiotics.
To solve the above problems, the invention adopts the following technical scheme:
A kind of laying duck laying period mixed feed improving laying duck immunity, it is by northeast corn, wheat-middlings, dregs of beans, corn
Albumen powder, mountain flour, calcium monohydrogen phosphate, Chinese herb feed additive, probiotics, premix mixing granulation form, the weight of each component
Measure percentage are as follows: corn 45%-50%, wheat-middlings 10%-15%, dregs of beans 20%-22%, corn protein powder 4%-6%, mountain flour
It is 8%-9%, calcium monohydrogen phosphate 0.8%-1%, Chinese herb feed additive 0.5%-1.5%, probiotics 0.01%-0.02%, pre-
Mixing 1%-1.5%, the sum of each component meet 100%.
According to the above scheme, the Chinese herb feed additive includes: Radix Astragali 22-25%, cortex cinnamomi 13- by weight percentage
15%, Rhizoma Atractylodis Macrocephalae 13-15%, Radix Codonopsis 10-12%, radix bupleuri 6-8%, honeysuckle 6-8%, cordate houttuynia 8-10%, Radix Glycyrrhizae 6-8%, old
Skin 8-10%, each group lease making are uniformly mixed after crushed 80 meshes.
According to the above scheme, the probiotics include: chitosan 25-30% (weight percent), bacillus licheniformis
Hundred million CFU/g of 100-200, hundred million CFU/g of bacillus subtilis 100-200, carrier is glucose.
According to the above scheme, the premix include: by weight percentage methionine 13-15%, lysine 15-20%,
Choline chloride 8-10%, it multi-vitamins 6.7-10%, composite mineral matter 6.7-10%, ethoxyquinoline 1.25-1.5%, plants
Sour enzyme 1-1.2%, salt 25-30%, rice chaff 5.3-18.7%.
According to the above scheme, the multi-vitamins composition are as follows: vitamin A (8000000 ± 800000IU/kg), vitamin D
(3000000 ± 300000IU/kg), vitamin E (30000 ± 3000IU/kg), Vitamin K3 (2500 ± 250mg/kg), dimension
Raw element B1 (2500 ± 250mg/kg), vitamin B2 (6000 ± 600mg/kg), vitamin B6 (4000 ± 400mg/kg), dimension life
Plain B12 (25 ± 2.5mg/kg), D-Biotin (200 ± 20mg/kg), D-VB5 (10000 ± 1000mg/kg), folic acid (1000
± 100mg/kg), niacin (3000 ± 300mg/kg), vitamin C (200000 ± 20000mg/kg)；The composite mineral matter group
Become: iron (50000 ± 5000mg/kg), copper (10000 ± 1000mg/kg), manganese (100000 ± 10000mg/kg), zinc
(100000 ± 10000mg/kg), selenium (300 ± 30mg/kg), iodine (1200 ± 120mg/kg).
Compared with prior art, beneficial effects of the present invention mainly show as follows:
(1) present invention in laying duck mixed feed using Chinese herbal medicine it is reasonably combined, have antibacterial, whet the appetite, promotees digest,
Functions, the long-time services such as QI invigorating, improvement immunity can improve laying duck survival rate, laying rate and egg size.
(2) present invention can improve laying duck intestines using bacillus licheniformis, bacillus subtilis in laying duck mixed feed
Road environment inhibits the growth of disease microorganism, promotes digestion, improves immunity, and chitosan can promote intestine beneficial bacteria colony
Growth improves intestinal microbial balance.
(3) antibiotic-free uses in laying duck mixed feed of the invention, meets national related feed provisions of laws and regulations, egg
The produced duck's egg antibiotic-free of duck remains, is green, safe and healthy, environmentally friendly.
It in short, laying duck laying period mixed feed nutrition science of the invention is reasonable, can sufficiently meet laying duck nutritional need, raise
Chinese herb astragalus, cortex cinnamomi, Rhizoma Atractylodis Macrocephalae, Radix Codonopsis, radix bupleuri, honeysuckle, cordate houttuynia, Radix Glycyrrhizae, dried orange peel and probiotics shell are added in material
Glycan, bacillus licheniformis, bacillus subtilis, the life that can effectively enhance laying duck immunity of organisms, inhibit disease microorganism
Length improves laying duck to the digestive utilization ratio of feed, and then improves laying duck survival rate, laying rate and egg size.
Specific embodiment
For a better understanding of the present invention, below with reference to the embodiment content that the present invention is furture elucidated, but the present invention is not
It is limited only to the following examples.
In following embodiments, the methionine is commercially available 99% methionine；The lysine is commercially available 70% lysine sulphur
Hydrochlorate；The choline chloride is commercially available 50% choline chloride；The multi-vitamins composition are as follows: vitamin A (8000000IU/
Kg), vitamin D (3000000IU/kg), vitamin E (30000IU/kg), Vitamin K3 (2500mg/kg), vitamin B1
(2500mg/kg), vitamin B2 (6000mg/kg), vitamin B6 (4000mg/kg), vitamin B12 (25mg/kg), D- biology
Element (200mg/kg), D-VB5 (10000mg/kg), folic acid (1000mg/kg), niacin (3000mg/kg), vitamin C
(200000mg/kg)；The composite mineral matter composition are as follows: iron (50000mg/kg), copper (10000mg/kg), manganese (100000mg/
Kg), zinc (100000mg/kg), selenium (300mg/kg), iodine (1200mg/kg).
Embodiment 1
A kind of laying duck mixed feed improving laying duck immunity, is calculated, including the following raw material: northeast in percentage by weight
Corn 48.68%, wheat-middlings 15%, dregs of beans 20%, corn protein powder 5%, mountain flour 8.5%, calcium monohydrogen phosphate 0.8%, Chinese herbal medicine add
Add agent 0.5%, probiotics 0.02%, premix 1.5%.
Wherein, the weight percent of premix each component are as follows: methionine 15%, choline chloride 10%, is answered at lysine 15%
Close vitamin 6.7%, composite mineral matter 6.7%, ethoxyquinoline 1.5%, phytase 1%, salt 26%, rice chaff 18.1%；
The weight percent of Chinese herb feed additive each component are as follows: Radix Astragali 25%, cortex cinnamomi 13%, Rhizoma Atractylodis Macrocephalae 13%, Radix Codonopsis 10%, radix bupleuri 7%,
Honeysuckle 8%, cordate houttuynia 8%, Radix Glycyrrhizae 8%, dried orange peel 8%, group lease making are uniformly mixed after crushed 80 meshes；Probiotics are each
Constituent content are as follows: chitosan 25% (weight percent), 10,000,000,000 CFU/g of bacillus licheniformis, bacillus subtilis 10,000,000,000
CFU/g, carrier are glucose.
Experimental program: it is laying duck 1200 identical to choose 200 ages in days gene, close according to body condition, production performance is close
Principle be divided into two groups, every group of 3 repetitions, each repetition 200.1 group uses commercial goods feed, as a control group；2 groups make
With mixed feed of the invention, as test group.Feeding management, immune disinfection are operated according to normal procedure.Preliminary trial period 1 week, examination
Test the phase 90 days.
Test result: laying duck survival rate, laying rate and egg size are as follows: after the test
| Group | Survival rate/% | Laying rate/% | Egg size/g |
| 1 | 90 | 88 | 62.5 |
| 2 | 96 | 92 | 64.9 |
As can be seen from the above table, gone out using mixed feed laying duck high survival rate of the invention and use commercial goods feed laying duck
Survival rate 6%, laying rate are higher by 4%, and average egg weight is higher by 2.4g, illustrate that laying duck mixed feed of the present invention can effectively increase
Strong laying duck immunity of organisms, and then improve laying duck survival rate, laying rate and egg size.
Embodiment 2
A kind of laying duck mixed feed improving laying duck immunity, which is characterized in that calculate in percentage by weight, including such as
Lower raw material: northeast corn 49.19%, wheat-middlings 13.7%, dregs of beans 20%, corn protein powder 5.8%, mountain flour 8.5%, calcium monohydrogen phosphate
0.8%, Chinese herb feed additive 1%, probiotics 0.01%, premix 1%.
Wherein, the weight percent of premix each component are as follows: methionine 15%, choline chloride 8%, is answered at lysine 13%
Close vitamin 10%, composite mineral matter 10%, ethoxyquinoline 1.5%, phytase 1%, salt 30%, rice chaff 11.5%；In
The weight percent of Chinese herbal medicine additive agent each component are as follows: Radix Astragali 22%, cortex cinnamomi 15%, Rhizoma Atractylodis Macrocephalae 13%, Radix Codonopsis 12%, radix bupleuri 6%, gold
Honeysuckle flower 6%, cordate houttuynia 10%, Radix Glycyrrhizae 6%, dried orange peel 10%, each group lease making are uniformly mixed after crushed 80 meshes；Probiotics
Each component content are as follows: chitosan 25% (weight percent), 10,000,000,000 CFU/g of bacillus licheniformis, bacillus subtilis 20,000,000,000
CFU/g, carrier are glucose.
Experimental program: it is laying duck 1800 identical to choose 300 ages in days gene, close according to body condition, production performance is close
Principle be divided into two groups, every group of 3 repetitions, each repetition 300.1 group uses commercial goods feed, as a control group；2 groups make
With mixed feed of the invention, as test group.Feeding management, immune disinfection are operated according to normal procedure.Preliminary trial period 1 week, examination
Test the phase 90 days.
Test result: laying duck survival rate, laying rate and egg size are as follows: after the test
| Group | Survival rate/% | Laying rate/% | Egg size/g |
| 1 | 92 | 84 | 66.7 |
| 2 | 94 | 86 | 69.4 |
As can be seen from the above table, go out height using mixed feed laying duck survival rate of the invention and use commercial goods feed laying duck
2%, laying rate is higher by 2%, and average egg weight is higher by 2.7g.
Embodiment 3
A kind of laying duck mixed feed improving laying duck immunity, which is characterized in that calculate in percentage by weight, including such as
Lower raw material: northeast corn 45.49%, wheat-middlings 13.5%, dregs of beans 22%, corn protein powder 6%, mountain flour 9%, calcium monohydrogen phosphate 1%,
Chinese herb feed additive 1.5%, probiotics 0.01%, premix 1.5%.
Wherein, the weight percent of premix each component are as follows: methionine 14%, choline chloride 10%, is answered at lysine 14%
Close vitamin 6.7%, composite mineral matter 6.7%, ethoxyquinoline 1.5%, phytase 1%, salt 30%, rice chaff 16.1%；
The weight percent of Chinese herb feed additive each component are as follows: Radix Astragali 22%, cortex cinnamomi 13%, Rhizoma Atractylodis Macrocephalae 15%, Radix Codonopsis 10%, radix bupleuri 8%,
Honeysuckle 7%, cordate houttuynia 9%, Radix Glycyrrhizae 7%, dried orange peel 9%, each group lease making are uniformly mixed after crushed 80 meshes；Probiotics
Each component content are as follows: chitosan 25% (weight percent), 10,000,000,000 CFU/g of bacillus licheniformis, bacillus subtilis 20,000,000,000
CFU/g, carrier are glucose.
Experimental program: it is laying duck 1200 identical to choose 230 ages in days gene, close according to body condition, production performance is close
Principle be divided into two groups, every group of 3 repetitions, each repetition 200.1 group uses commercial goods feed, as a control group；2 groups make
With mixed feed of the invention, as test group.Feeding management, immune disinfection are operated according to normal procedure.Preliminary trial period 1 week, examination
Test the phase 90 days.
Test result: laying duck survival rate, laying rate and egg size are as follows: after the test
| Group | Survival rate/% | Laying rate/% | Egg size/g |
| 1 | 93 | 90 | 61.7 |
| 2 | 96 | 92 | 64.9 |
As can be seen from the above table, gone out using mixed feed laying duck high survival rate of the invention and use commercial goods feed laying duck
Survival rate 3%, laying rate are higher by 2%, and average egg weight is higher by 3.2g.
In conclusion the laying duck mixed feed fed in above-described embodiment can be improved by the culture experiment to laying duck
The survival rate of duck group 2-6%, duck group's laying rate improve 2-4%, and egg size increases 2-4g, and duck's egg is without any hormone, antibiotic residue.
The present invention has enhancing laying period laying duck immunity, reduces the generation of disease, improves laying duck to the digestive utilization ratio of feed, reduces
The effect that antibiotics uses.
The above is only a preferred embodiment of the present invention, it is noted that come for those of ordinary skill in the art
It says, without departing from the concept of the premise of the invention, several modifications and variations can also be made, these belong to of the invention
Protection scope.
Claims (5)
1. a kind of laying duck mixed feed for improving laying duck immunity, which is characterized in that calculate in percentage by weight, including as follows
Raw material: corn 45%-50%, wheat-middlings 10%-15%, dregs of beans 20%-22%, corn protein powder 4%-6%, mountain flour 8%-9%, calcium monohydrogen phosphate
0.8%-1%, Chinese herb feed additive 0.5%-1.5%, probiotics 0.01%-0.02%, premix 1%-1.5%.
2. a kind of laying duck mixed feed for improving laying duck immunity according to claim 1, which is characterized in that in described
Chinese herbal medicine additive agent is calculated in percentage by weight, including the following raw material: Radix Astragali 22-25%, cortex cinnamomi 13-15%, Rhizoma Atractylodis Macrocephalae 13-15%, party
Join 10-12%, radix bupleuri 6-8%, honeysuckle 6-8%, cordate houttuynia 8-10%, Radix Glycyrrhizae 6-8%, dried orange peel 8-10%, each group lease making crushed 80
It is uniformly mixed after mesh.
3. a kind of laying duck mixed feed for improving laying duck immunity according to claim 1, which is characterized in that described is micro-
The each component content of ecological agent are as follows: chitosan 25-30%(weight percent), it is hundred million CFU/g of bacillus licheniformis 100-200, withered
Careless hundred million CFU/g of bacillus 100-200, surplus is carrier glucose.
4. a kind of laying duck mixed feed for improving laying duck immunity according to claim 1, which is characterized in that described is pre-
Mixing is calculated in percentage by weight, including the following raw material: methionine 13-15%, lysine 13-15%, choline chloride 8-10%,
Multi-vitamins 6.7-10%, composite mineral matter 6.7-10%, ethoxyquinoline 1.25-1.5%, phytase 1-1.2%, salt 25-
30%, rice chaff 5.3-18.7%.
5. a kind of laying duck mixed feed for improving laying duck immunity according to claim 4, which is characterized in that described compound
Vitamin composition are as follows: vitamin A (8000000 ± 800000IU/kg), vitamin D (3000000 ± 300000IU/kg), dimension life
Plain E(30000 ± 3000IU/kg), Vitamin K3 (2500 ± 250mg/kg), vitamin B1 (2500 ± 250mg/kg), dimension life
Plain B2(6000 ± 600mg/kg), vitamin B6 (4000 ± 400mg/kg), vitamin B12 (25 ± 2.5mg/kg), D- biology
Plain (200 ± 20mg/kg), D-VB5 (10000 ± 1000mg/kg), folic acid (1000 ± 100mg/kg), niacin (3000 ±
300mg/kg), vitamin C (200000 ± 20000mg/kg)；The composite mineral matter composition are as follows: iron (50000 ± 5000mg/
Kg), copper (10000 ± 1000mg/kg), manganese (100000 ± 10000mg/kg), zinc (100000 ± 10000mg/kg), selenium (300
± 30mg/kg), iodine (1200 ± 120mg/kg).
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| CN201810971664.0A CN109123184A (en) | 2018-08-24 | 2018-08-24 | A kind of laying duck mixed feed improving laying duck immunity |
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| CN201810971664.0A CN109123184A (en) | 2018-08-24 | 2018-08-24 | A kind of laying duck mixed feed improving laying duck immunity |
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ID=64827780
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110037193A (en) * | 2019-04-20 | 2019-07-23 | 河南牧业经济学院 | A kind of duck premix and its application |
| CN111227110A (en) * | 2019-12-17 | 2020-06-05 | 宁夏袁稼莊种养殖专业合作社 | Selenium-rich egg laying sheldrake feed formula |
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| CN103989025A (en) * | 2014-06-14 | 2014-08-20 | 江西天韵农业开发有限公司 | Selenium-enriching laying duck feed and breeding method of selenium-enriching laying duck |
| CN104642816A (en) * | 2015-03-20 | 2015-05-27 | 广州市番禺区大川饲料有限公司 | Feed preventing egg drop syndrome of laying duck |
| CN105166438A (en) * | 2015-06-30 | 2015-12-23 | 广西广联饲料有限公司 | Laying duck feed and production method thereof |
| CN106912449A (en) * | 2017-03-23 | 2017-07-04 | 柳州市讯丰养殖有限公司 | A kind of method for breeding of selenium-rich broiler chicken |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103989025A (en) * | 2014-06-14 | 2014-08-20 | 江西天韵农业开发有限公司 | Selenium-enriching laying duck feed and breeding method of selenium-enriching laying duck |
| CN104642816A (en) * | 2015-03-20 | 2015-05-27 | 广州市番禺区大川饲料有限公司 | Feed preventing egg drop syndrome of laying duck |
| CN105166438A (en) * | 2015-06-30 | 2015-12-23 | 广西广联饲料有限公司 | Laying duck feed and production method thereof |
| CN106912449A (en) * | 2017-03-23 | 2017-07-04 | 柳州市讯丰养殖有限公司 | A kind of method for breeding of selenium-rich broiler chicken |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110037193A (en) * | 2019-04-20 | 2019-07-23 | 河南牧业经济学院 | A kind of duck premix and its application |
| CN111227110A (en) * | 2019-12-17 | 2020-06-05 | 宁夏袁稼莊种养殖专业合作社 | Selenium-rich egg laying sheldrake feed formula |
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Application publication date: 20190104 |
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