CN106343244A - Laying duck fodder for improving laying duck production performances under high-temperature environment condition and application thereof - Google Patents
Laying duck fodder for improving laying duck production performances under high-temperature environment condition and application thereof Download PDFInfo
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- CN106343244A CN106343244A CN201610900191.6A CN201610900191A CN106343244A CN 106343244 A CN106343244 A CN 106343244A CN 201610900191 A CN201610900191 A CN 201610900191A CN 106343244 A CN106343244 A CN 106343244A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/87—Re-use of by-products of food processing for fodder production
Abstract
The invention discloses a laying duck fodder for improving laying duck production performances under a high-temperature environment condition and an application thereof. Each kilogram of laying duck fodder comprises 480-600g of corn, 230-250.3g of bean pulp, 32.4-145.5g of wheat bran, 83.1-93.1g of large-size rock flour, 3-30g of soybean oil, 13.5-16g of calcium hydrogen phosphate, 0.5-0.7g of L-lysine hydrochloride, 1.3-1.7g of DL-methionine, 3g of salt and 10g of compound vitamin-microelement premixed material. According to the invention, the fodder formula is modified, the fodder composition is adjusted, and any exogenous healthcare drugs, antibiotics or pigment additives are not added. After a laying duck is fed with the fodder under the high-temperature environment condition, the following effects can be achieved: the laying duck production performances, including laying rate, average egg weight and the like, are all better than those of commodity production materials, the color of the duck egg produced by adopting the fodder is better than that of the commodity production materials, and the antioxidant capacity of the laying duck body can be improved.
Description
Technical field
The invention belongs to field of fodder, it is related to a kind of feed formula, lay eggs particularly to a kind of high ambient conditions that improve
The egg duck feed of duck production performance and its application.
Background technology
Southern summer high temperature high humidity environment becomes the important restriction factor of the southern aquaculture of impact.Laying ducks are that temperature sensitive moves
Thing, reacts particularly evident to hot environment, peasant household's laying ducks breeding facility falls behind, breeding environment is severe in addition, produces high temperature season
The caused laying ducks degradation problem of section is especially prominent.Meanwhile, hot environment causes pole to links such as egg product storage, transports
Big negative effect.This laboratory early-stage Study finds, laying ducks feed intake can be caused to decline, produce under the conditions of long-term continuous high temperature
Egg performance reduces；2) destroy intestinal 26S Proteasome Structure and Function, reduce the digestion power of nutrient substance；3) electrolyte changing in blood is put down
Weighing apparatus, and affect organism metabolism；4) reduce immune function and oxidation resistance, improve mortality rate etc..This shows hot environment to egg
Duck production performance and laying ducks culture benefit bring very big negative effect.
Researcher and industrial technology personnel are it is believed that under the conditions of summer high temperature environment, feed intake declines caused
The key factor being probably to affect performance of poultry that nutrition intake is not enough.It is limited to currently most peasant household aquiculture status, by changing
The aspects such as kind breeding facility condition are started with and are still had limitation.Although forefathers pass through to add the Nutrition Strategies such as antioxidant or cellulose
Feed intake can be improved to a certain extent, but ideal effect is not still obtained on performance.We assume that thinking, cannot improve
It is contemplated that improving critical nutrients concentration on the premise of feed intake, improving Dietary Energy composition, making up nutrient substance absorption
Reduce, reach the purpose improving laying ducks production performance.
Content of the invention
In order to overcome shortcoming and the deficiency of prior art, the primary and foremost purpose of the present invention is to provide a kind of raising hot environment
Under the conditions of laying ducks production performance egg duck feed.
By changing critical nutrients constituents ratio in feedstuff, adjust energy building form, and then provide one kind to improve high temperature
The feed-formulating technique of laying ducks production performance and application under environmental condition.This egg duck feed is under high temperature season using can keep relatively
Good egg laying performance.
Another object of the present invention is to providing the egg duck feed of laying ducks production performance under above-mentioned raising high ambient conditions
Application.
The purpose of the present invention is achieved through the following technical solutions:
The egg duck feed of laying ducks production performance under a kind of raising high ambient conditions, every kilogram of described egg duck feed includes
Following ingredients: Semen Maydiss 480～600g, bean cake 230～250.3g, Testa Tritici 32.4～145.5g, big granularity stone powder 83.1～
93.1g, soybean oil 3～30g, calcium hydrogen phosphate 13.5～16g, l- lysine hydrochloride 0.5～0.7g, dl- Methionine 1.3～
1.7g, Sal 3g, compound vitamin-microelement pre-mix material 10g.
Preferably, the described egg duck feed of every kilogram of the present invention includes following ingredients: Semen Maydiss 521g, bean cake 248g, Semen Tritici aestivi
Bran 87.3g, big granularity stone powder 93.1g, soybean oil 20g, calcium hydrogen phosphate 15.4g, l- lysine hydrochloride 0.5g, dl- Methionine
1.7g, Sal 3g, compound vitamin-microelement pre-mix material 10g.
Every kilogram of described compound vitamin-microelement pre-mix material includes following composition: sodium bicarbonate 150g, choline chloride
67g, bacitracin zinc 10g, gram oxygen 15g, dew protects fine salt 100g, wheat-middlings 442.3254～481.56g, va 90～1,100,000 iu, ve
Acetass 4.5～5.5g, vd327～330,000 iu, vb20.84375～1.03125g, vk 0.5625～0.6875g, vb1
0.234～0.286g, vb60.459～0.561g, vb120.225～0.275g, calcium d-Panthotenate 2.2725～2.7775g, nicotinoyl
Amine 3.636563～4.444688g, Folic Acid 0.117282～0.143344g, biotin 1.125～1.375g, feso4·h2o
22.275～27.225g, cuso4·5h2O 3.54375～4.33125g, znso4·h2O 28.68244～35.0563g,
mnso4·h2O35.37675～43.23825g, prediluted na2seo3(se content 0.44%) 5.113125～
6.249375g, the ca (io of 100 times of dilutions3)2(i effective content 0.61%) 3.688875～4.508625g, 100 times of dilutions
coso4·h2O (co effective content is 0.34%) 61.465～75.1245g.
Preferably, every kilogram of described compound vitamin-microelement pre-mix material includes following composition: sodium bicarbonate 150g,
Choline chloride 67g, bacitracin zinc 10g, gram oxygen 15g, dew protects fine salt 100g, wheat-middlings 461.9323g, va 1,000,000 iu, ve acetic acid
Ester 5g, vd3300000 iu, vb20.9375g, vk 0.625g, vb10.26g, vb60.51g, vb120.25g, calcium d-Panthotenate
2.525g, nicotiamide 4.040625g, Folic Acid 0.130313g, biotin 1.25g, feso4·h2O 24.75g, cuso4·5h2o
3.9375g, znso4·h2O 31.86938g, mnso4·h2O 39.3075g, prediluted na2seo3(se content 0.44%)
5.68125g, the ca (io of 100 times of dilutions3)2(i effective content 0.61%) 4.09875g, the coso of 100 times of dilutions4·h2o(co
Effective content is 0.34%) 68.295g.
In this formula, the use of soybean oil can be provided with efficiency amount for laying ducks under high ambient conditions, reduces under hot environment
The heat increment that laying ducks cause because searching for food, improves feedstuff mouthfeel simultaneously.
Under described raising high ambient conditions, the egg duck feed of laying ducks production performance is laid eggs in raising high ambient conditions
Application in duck production performance.
The present invention, with respect to prior art, has such advantages as and effect:
The present invention passes through to improve feed formula, adjustment feedstuff composition, and no any external source health medicine, antibiotic and pigment add
Plus thing, can reach following effect after this feedstuff feeding under high ambient conditions: the laying rate of (1) laying ducks, average egg weight etc. are raw
Produce performance and be superior to marketing production material；(2) apply the Ovum Anas domestica that this technology formula feed is produced, its Ovum Anas domestica color is better than
Commodity production material；(3) improve the oxidation resistance of laying ducks body.
Specific embodiment
With reference to embodiment, the present invention is described in further detail, but embodiments of the present invention not limited to this.
Embodiment 1
The egg duck feed (testing material) of laying ducks production performance under a kind of raising high ambient conditions, every kilogram of described laying ducks are raised
Material includes following ingredients: Semen Maydiss 521g, bean cake 248g, Testa Tritici 87.3g, big granularity stone powder 93.1g, soybean oil 20g, phosphoric acid
Hydrogen calcium 15.4g, l- lysine hydrochloride 0.5g, dl- Methionine 1.7g, Sal 3g, compound vitamin-microelement pre-mix material
10g.Every kilogram of described compound vitamin-microelement pre-mix material includes following composition: sodium bicarbonate 150g, choline chloride 67g,
Bacitracin zinc 10g, gram oxygen 15g, dew protects fine salt 100g, wheat-middlings 461.9323g, va 1,000,000 iu, ve acetass 5g, vd3300000
Iu, vb20.9375g, vk 0.625g, vb10.26g, vb60.51g, vb120.25g, calcium d-Panthotenate 2.525g, nicotiamide
4.040625g, Folic Acid 0.130313g, biotin 1.25g, feso4·h2O 24.75g, cuso4·5h2O3.9375g,
znso4·h2O 31.86938g, mnso4·h2O 39.3075g, prediluted na2seo3(se content 0.44%) 5.68125g,
Ca (the io of 100 times of dilutions3)2(i effective content 0.61%) 4.09875g, the coso of 100 times of dilutions4·h2O (co effective content
For 0.34%) 68.295g.
Matched group feedstuff (being prepared according to business material nutrient component) includes following component: provides Semen Maydiss in per kilogram feedstuff
546.5g, Testa Tritici 94g, bean cake 242g, stone powder 89.5g, calcium hydrogen phosphate 13.5g, l- lysine hydrochloride 0.1g, dl- egg ammonia
Sour 1.4g, Sal 3g, compound vitamin-microelement pre-mix material 10g.
Every kilogram of described compound vitamin-microelement pre-mix material includes following composition: sodium bicarbonate 150g, choline chloride
67g, bacitracin zinc 10g, gram oxygen 15g, dew protects fine salt 100g, wheat-middlings 501.1452g, va 800,000 iu, ve acetass 4g, vd3
240000 iu, vb20.75g, vk 0.5g, vb10.2085g, vb60.4081g, vb120.20g, calcium d-Panthotenate 2.02g, nicotiamide
3.2325g, Folic Acid 0.10425g, biotin 1.0g, feso4·h2O 19.8g, cuso4·5h2O 3.15g, znso4·h2o
25.4955g, mnso4·h2O31.446g, prediluted na2seo3(se content 0.44%) 4.545g, the ca of 100 times of dilutions
(io3)2(i effective content 0.61%) 3.279g, the coso of 100 times of dilutions4·h2O (co effective content is 0.34%)
54.636g.
Preparation process is as follows: first by l- lysine hydrochloride, calcium hydrogen phosphate, compound vitamin-microelement pre-mix material
Mixer stirs 30 minutes, 65 beats/min of rotating speed.
Subsequently Semen Maydiss, bean cake, Testa Tritici, soybean oil, stone powder and mixed small powder are proceeded in medium-sized mixer together
Mix, the time is 30 minutes.Pelletized after feedstuff mixing, pelleting temperature is 80 DEG C, a diameter of 3mm of particulate material.
Test material and method: divide equally random for 120 180 age in days egg-laying peak laying ducks to 2 treatment groups, every group 6
Individual repetition hurdle, each repeats 10, hurdle duck, and single cage is raised.Wherein process a fed control group diet；Process second feeding experiment
Material, totally 30 days experimental period, laying ducks free choice feeding drinking-water during test, daily holding 16h illumination, matched group and test during test
Group indoor temperature maintains 35 ± 1 DEG C, and from morning 10:00-20:00,10h altogether, remaining time is 25 DEG C to high-temperature time.Record
The daily feed intake in every hurdle, egg number and weight of laying eggs.During off-test, gather laying ducks venous blood, collect all egg samples and enter row index
Analysis.
The impact to megathermal period laying ducks egg laying performance for the table 1 administering transgenic material
| Matched group | Experimental group | Sem (standard error) | P value | |
| Laying rate, % | 75.6 | 82.9 | 4.35 | 0.05 |
| Average egg weight, g | 67.43 | 66.71 | 0.58 | 0.39 |
| Daily output egg size, g | 50.98 | 54.92 | 2.41 | 0.29 |
| Feed intake, g | 154.9 | 149.4 | 1.45 | 0.02 |
| Feedstuff-egg ratio | 3.17 | 2.78 | 0.16 | 0.13 |
Note: laying rate adopts X 2 test, other indexs adopt one factor analysis of variance.
Drawn by table 1 result, matched group is compared using experimental group diet and significantly improves laying rate (p < 0.05), average egg
Weight, daily output egg size do not make significant difference, and experimental group laying ducks feed intake is substantially less than matched group (p < 0.05), and between group, feedstuff-egg ratio is no aobvious
Write difference.
Under table 2 high ambient conditions feeding experiment feedstuff at the end of Ovum Anas domestica quality impact
| Matched group | Experimental group | Sem (standard error) | P value | |
| Egg size, g | 64.9 | 70.7 | 2.01 | 0.05 |
| Egg shape index | 75.3 | 74.9 | 0.46 | 0.52 |
| Albumen height | 7.01 | 7.05 | 0.13 | 0.53 |
| Hangh unit | 80.5 | 80.3 | 1.02 | 0.87 |
| Yolk color | 4.83 | 6.00 | 0.34 | 0.03 |
| Egg yolk weight, g | 21.77 | 21.67 | 0.21 | 0.74 |
| Albumen weight, g | 39.9 | 39.4 | 0.70 | 0.65 |
| Eggshell weight, g | 6.01 | 5.79 | 0.11 | 0.17 |
Note: above index adopts one factor analysis of variance.
Drawn by table 2 result, under high ambient conditions, laying ducks feeding experiment material group after 30 days average egg weight compare matched group
Mean height 5.8g (p < 0.05), simultaneously feeding experiment group yolk color compare matched group and significantly improve (p < 0.05), and egg yolk weight,
No significant difference (p > 0.05) between albumen weight and eggshell restructuring.This shows that under high ambient conditions, feeding experiment Feed Energy significantly changes
Kind Ovum Anas domestica quality.
Under table 3 high ambient conditions feeding experiment material at the end of in laying ducks blood Antioxidant Indexes impact
| Matched group | Experimental group | Sem (standard error) | P value | |
| Gssg, μm ol/l | 3.22 | 2.82 | 0.29 | 0.36 |
| Gsh, g/l | 28.1 | 28.5 | 4.11 | 0.94 |
| T-sod, u/ml | 94.7 | 97.2 | 5.16 | 0.41 |
| Gsh-px, u/ml | 289.0 | 349.4 | 19.4 | 0.04 |
| Cat, u/ml | 1.82 | 1.73 | 0.59 | 0.91 |
| T-aoc, u/ml | 17.45 | 19.35 | 1.96 | 0.50 |
| Mda, nmol/ml | 11.92 | 17.61 | 1.24 | 0.43 |
Note: above index adopts one factor analysis of variance.
Drawn by table 3 result, under high ambient conditions, feeding experiment material significantly improves gsh-px activity in laying ducks blood plasma
(p < 0.05), and all no notable between oxidized form gssg and reduced form gsh concentration, antioxidase t-sod, cat activearm in blood plasma
Difference (p > 0.05), t-aoc in blood plasma, mda concentration all no significant differences.
Result above shows, under high ambient conditions, feeding experiment material group laying ducks production performance, Egg Quality and body resist
Business material group is superior on oxidability.
Embodiment 2
The egg duck feed (testing material) of laying ducks production performance under a kind of raising high ambient conditions, every kilogram of described laying ducks are raised
Material includes following ingredients: Semen Maydiss 600g, bean cake 250.3g, Testa Tritici 32.4g, big granularity stone powder 86g, soybean oil 3g, phosphoric acid
Hydrogen calcium 13.5g, l- lysine hydrochloride 0.5g, dl- Methionine 1.3g, Sal 3g, compound vitamin-microelement pre-mix material
10g.
Every kilogram of described compound vitamin-microelement pre-mix material includes following composition: sodium bicarbonate 150g, choline chloride
67g, bacitracin zinc 10g, gram oxygen 15g, dew protects fine salt 100g, wheat-middlings 481.56g, va 900,000 iu, ve acetass 4.5g, vd3
270000 iu, vb20.84375g, vk 0.5625g, vb10.234g, vb60.459g, vb120.225g, calcium d-Panthotenate
2.2725g, nicotiamide 3.6366g, Folic Acid 0.1173g, biotin 1.125g, feso4·h2O 22.275g, cuso4·5h2o
3.54375g, znso4·h2O28.68244g, mnso4·h2O 35.3768g, prediluted na2seo3(se content 0.44%)
5.1131g, the ca (io of 100 times of dilutions3)2(i effective content 0.61%) 3.688875g, the coso of 100 times of dilutions4·h2o(co
Effective content is 0.34%) 61.4655g.
Embodiment 3
The egg duck feed (testing material) of laying ducks production performance under a kind of raising high ambient conditions, every kilogram of described laying ducks are raised
Material includes following ingredients: Semen Maydiss 480g, bean cake 230g, Testa Tritici 145.5g, big granularity stone powder 83.1g, soybean oil 30g, phosphorus
Sour hydrogen calcium 16g, l- lysine hydrochloride 0.7g, dl- Methionine 1.7g, Sal 3g, compound vitamin-microelement pre-mix material
10g.
Every kilogram of described compound vitamin-microelement pre-mix material includes following composition: sodium bicarbonate 150g, choline chloride
67g, bacitracin zinc 10g, gram oxygen 15g, dew protects fine salt 100g, wheat-middlings 442.3254g, va 1,100,000 iu, ve acetass 5.5g,
vd3330000 iu, vb21.03125g, vk 0.6875g, vb10.286g, vb60.561g, vb120.275g, calcium d-Panthotenate
2.7775g, nicotiamide 4.444688g, Folic Acid 0.143344g, biotin 1.375g, feso4·h2O 27.225g, cuso4·
5h2O 4.33125g, znso4·h2O 35.0563g, mnso4·h2O 43.23825g, prediluted na2seo3(se content
0.44%) 6.249375g, the ca (io of 100 times of dilutions3)2(i effective content 0.61%) 4.508625g, 100 times of dilutions
coso4·h2O (co effective content is 0.34%) 75.1245g.
Product mixed by above-described embodiment 2,3, does comparing of identical experiment process with embodiment one,
Obtain the result of the test approximate with embodiment 1, here does not repeat one by one.In each embodiment, each component raw material is all commercially available obtains
?.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention are not subject to above-described embodiment
Limit, other any spirit without departing from the present invention and the change made under principle, modification, replacement, combine, simplify,
All should be equivalent substitute mode, be included within protection scope of the present invention.
Claims (5)
1. a kind of egg duck feed improving laying ducks production performance under high ambient conditions is it is characterised in that every kilogram of described laying ducks are raised
Material includes following ingredients: Semen Maydiss 480～600g, bean cake 230～250.3g, Testa Tritici 32.4～145.5g, big granularity stone powder
83.1～93.1g, soybean oil 3～30g, calcium hydrogen phosphate 13.5～16g, l- lysine hydrochloride 0.5～0.7g, dl- Methionine
1.3～1.7g, Sal 3g, compound vitamin-microelement pre-mix material 10g.
2. according to claim 1 improve high ambient conditions under laying ducks production performance egg duck feed it is characterised in that:
Every kilogram of described egg duck feed includes following ingredients: Semen Maydiss 521g, bean cake 248g, Testa Tritici 87.3g, big granularity stone powder
93.1g, soybean oil 20g, calcium hydrogen phosphate 15.4g, l- lysine hydrochloride 0.5g, dl- Methionine 1.7g, Sal 3g, compound dimension
Raw element-microelement pre-mix material 10g.
3. the egg duck feed improving laying ducks production performance under high ambient conditions according to claim 1 and 2, its feature exists
In:
Every kilogram of described compound vitamin-microelement pre-mix material includes following composition: sodium bicarbonate 150g, choline chloride 67g,
Bacitracin zinc 10g, gram oxygen 15g, dew protects fine salt 100g, wheat-middlings 442.3254～481.56g, va 90～1,100,000 iu, ve acetic acid
Ester 4.5～5.5g, vd3For 27～330,000 iu, vb2For 0.84375～1.03125g, vk 0.5625～0.6875g, vb1For
0.234～0.286g, vb6For 0.459～0.561g, vb12For 0.225～0.275g, calcium d-Panthotenate 2.2725～2.7775g,
Nicotiamide 3.636563～4.444688g, Folic Acid 0.117282～0.143344g, biotin 1.125～1.375g, feso4·
h2O is 22.275～27.225g, cuso4·5h2O is 3.54375～4.33125g, znso4·h2O be 28.68244～
35.0563g, mnso4·h2O is 35.37675～43.23825g, the prediluted na of se content 0.44%2seo3For
Ca (the io of 100 times of dilutions of 5.113125～6.249375g, i effective content 0.61%3)2For 3.688875～4.508625g,
Co effective content is the coso of 0.34% 100 times of dilutions4·h2O is 61.465～75.1245g.
4. according to claim 3 improve high ambient conditions under laying ducks production performance egg duck feed it is characterised in that:
Every kilogram of described compound vitamin-microelement pre-mix material includes following composition: sodium bicarbonate 150g, choline chloride 67g,
Bacitracin zinc 10g, gram oxygen 15g, dew protects fine salt 100g, wheat-middlings 461.9323g, va 1,000,000 iu, ve acetass 5g, vd3For 30
Ten thousand iu, vb2For 0.9375g, vk 0.625g, vb1For 0.26g, vb6For 0.51g, vb12For 0.25g, calcium d-Panthotenate 2.525g, cigarette
Amide 4.040625g, Folic Acid 0.130313g, biotin 1.25g, feso4·h2O is 24.75g, cuso4·5h2O is
3.9375g, znso4·h2O is 31.86938g, mnso4·h2O be 39.3075g, se content 0.44% prediluted
na2seo3For 5.68125g, the ca (io of 100 times of dilutions of i effective content 0.61%3)2For 4.09875g, co effective content is
The coso of 0.34% 100 times of dilutions4·h2O is 68.295g.
5. under the raising high ambient conditions described in any one of Claims 1 to 4 the egg duck feed of laying ducks production performance application,
It is characterized in that: under described raising high ambient conditions, the egg duck feed of laying ducks production performance is under improving high ambient conditions
Application in laying ducks production performance.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107259183A (en) * | 2017-07-19 | 2017-10-20 | 河南世纪天缘生态科技有限公司 | A kind of green and healthy egg duck feed |
| CN109278418A (en) * | 2018-10-25 | 2019-01-29 | 广东省农业科学院动物科学研究所 | Capsaicine is promoting egg fowl follicle maturity and is improving the application in egg fowl laying rate |
| CN110367381A (en) * | 2019-08-09 | 2019-10-25 | 广东省农业科学院动物科学研究所 | A kind of laying duck drinking water additive, laying duck drinking-water formula and its preparation method and application |
| CN113598284A (en) * | 2021-08-16 | 2021-11-05 | 广东省农业科学院动物科学研究所 | Application of 25-OH-VD3 in improving ovarian development and egg laying performance |
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| CN104686864A (en) * | 2015-03-27 | 2015-06-10 | 安庆永强农业科技股份有限公司 | Muscovy duck fodder |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107259183A (en) * | 2017-07-19 | 2017-10-20 | 河南世纪天缘生态科技有限公司 | A kind of green and healthy egg duck feed |
| CN109278418A (en) * | 2018-10-25 | 2019-01-29 | 广东省农业科学院动物科学研究所 | Capsaicine is promoting egg fowl follicle maturity and is improving the application in egg fowl laying rate |
| CN110367381A (en) * | 2019-08-09 | 2019-10-25 | 广东省农业科学院动物科学研究所 | A kind of laying duck drinking water additive, laying duck drinking-water formula and its preparation method and application |
| CN113598284A (en) * | 2021-08-16 | 2021-11-05 | 广东省农业科学院动物科学研究所 | Application of 25-OH-VD3 in improving ovarian development and egg laying performance |
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Application publication date: 20170125 |