CN104397494A - Premixed feed for improving egg production and egg quality of hens and preparation method thereof - Google Patents
Premixed feed for improving egg production and egg quality of hens and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a premixed feed for improving egg production and egg quality of hens and a preparation method thereof. The premixed feed mainly comprises calcium hydrogen phosphate, rock powder, table salt, lysine, methionine, phytase, a compound enzyme preparation, a micro-ecological preparation, nitrogen solution powder, organic zinc, choline chloride, various vitamins, various minerals and carriers. A certain proportion of the organic zinc, micro-ecological preparation and nitrogen solution powder are added into the premixed feed disclosed by the invention, so that the average egg weight and the laying rate of the layers during a laying period can be improved, the feed egg ratio and soft-shelled egg rate are significantly reduced, and moreover, the eggshell thickness, Haugh unit and eggshell strength are significantly improved.
Description
Technical field
The present invention relates to feed stripped field, is a kind ofly improve premixed feed of laying hen egg yield and Egg Quality and preparation method thereof.
Background technology
In feed when protein and amino acid deficiency, can cause laying hen ovary generation atrophy, follicular development is obstructed, thus egg production is reduced, and therefore laying period will ensure protein and amino acid whose content in layer diets.Laying rate of laying hen is significantly between the rising stage, if vitamin addition is not enough, the metabolism of hen organism physiology can be caused to get muddled and affect laying eggs.Therefore, producing to peak phase of laying eggs from opening, suitably should to strengthen in feed multivitamin addition to meet the needs of laying hen.
Calcium, phosphorus are the Major Nutrient factors affecting eggshell quality, and in daily ration, calcium content is on the low side, shell egg and soft-shelled egg ratio showed increased; Calcium content is too high, not only affects daily ration palatability, also affects eggshell quality and laying rate, so calcium phosphorus ration must be suitable in layer chicken feed.When salt supplements too much or not enough in feed, can cause laying hen indigestion, anorexia, egg size alleviates and declines with egg production.
Summary of the invention
The object of the present invention is to provide a kind of premixed feed that can improve laying hen egg yield and Egg Quality.
The present invention also aims to provide a kind of preparation method that can improve the premixed feed of laying hen egg yield and Egg Quality.
To achieve these goals, technical program of the present invention lies in: a kind of premixed feed improving laying hen egg yield and Egg Quality, comprise the component (percentage refers to the effective content of component) of following parts by weight: calcium monohydrogen phosphate 140 ~ 160 parts, stone flour 220 ~ 240 parts, salt 55 ~ 65 parts, lysine 6 ~ 8 parts, methionine 20 ~ 24 parts, phytase 50002 ~ 4 parts, complex enzyme formulation 3 ~ 5 parts, probiotics 3 ~ 5 parts, separate 10 ~ 14 parts, nitrogen powder, organic zinc 15%4 ~ 6 parts, Choline Chloride 50%12 ~ 16 parts, multidimensional 4 ~ 5 parts, 15 ~ 16 parts, many ore deposits and 442 ~ 496 parts, carrier.
Preferably, the component of described premixed feed, according to weight parts: calcium monohydrogen phosphate 160 parts, stone flour 240 parts, salt 55 parts, lysine 8 parts, methionine 24 parts, phytase 5000 are 4 parts, complex enzyme formulation 5 parts, probiotics 5 parts, separate 14 parts, nitrogen powder, organic zinc 15%6 parts, Choline Chloride 50%16 parts, multidimensional 5 parts, 16 parts, many ore deposits and 442 parts, carrier.
Described multidimensional every kilogram comprises: vitamin A: 37440 ~ 46800KIU, vitamine D3: 13344 ~ 16680KIU, vitamin B2 >=19.82g, vitamin B6 >=12.8g, vitamin E >=100.08g, Vitamin K3 >=11.04g, vitamin B12 >=0.04g, nicotinic acid >=128.82g, pantothenic acid >=65.16g, folic acid >=2.74g.
Described many every kilogram, ore deposits comprise: copper 26.94 ~ 28.74g, iron 99.0 ~ 105.6g, zinc 75.0 ~ 80.0g, manganese 102.0 ~ 108.8g, iodine 1.5 ~ 1.6g, selenium 0.38 ~ 0.41g.
Described stone flour is feed grade stone flour, and main component is calcium carbonate, and calcium content is more than 38%, and content of magnesium is below 0.5%, and other content of beary metal are within GB.
Described calcium monohydrogen phosphate is calcium hydrophosphate fodder, calcium content more than 22%, phosphorus content more than 17%.
Meanwhile, technical program of the present invention lies in have employed a kind of preparation method improving the premixed feed of laying hen egg yield and Egg Quality, concrete steps are:
(1) each component of precise, with weight parts (percentage refers to the effective content of component): calcium monohydrogen phosphate 140 ~ 160 parts, stone flour 220 ~ 240 parts, salt 55 ~ 65 parts, lysine 6 ~ 8 parts, methionine 20 ~ 24 parts, phytase 50002 ~ 4 parts, complex enzyme formulation 3 ~ 5 parts, probiotics 3 ~ 5 parts, 10 ~ 14 parts, solution nitrogen powder, organic zinc 15%4 ~ 6 parts, Choline Chloride 50%12 ~ 16 parts, multidimensional 4 ~ 5 parts, 15 ~ 16 parts, many ore deposits and 442 ~ 496 parts, carrier.
(2) each component that step (1) weighs fed intake in feed mixing machine successively, feed intake while mix, the dog-house of feed mixing machine is divided into aniseed dog-house and small powder dog-house, and feeding sequence is as follows:
Aniseed dog-house: carrier, salt, stone flour, calcium monohydrogen phosphate;
Small powder dog-house: Choline Chloride 50%, lysine, methionine, multidimensional, many ore deposits, phytase 5000, complex enzyme formulation, probiotics, separates nitrogen powder, organic zinc;
(3), after having fed intake, feed mixing machine proceeds mixing;
(4) after having mixed, packing packing.
Preferably, the time T that in described step (3), feed mixing machine carries out mixing is 240S≤T < 360S.
A kind of usage improving the premixed feed of laying hen egg yield and Egg Quality provided by the invention is: by above-mentioned premixed feed according to mass fraction be 5% ratio and other mass fractions be 95% feed mixes, be made into feeding laying period laying hen after complete diet pellet.
Principle of the present invention is: with the addition of organic zinc in component, probiotics conciliates nitrogen powder, can promote laying hen intestinal health, improve digestive function, thus keep laying hen body weight, improve egg production and laying rate, increase shell thickness, hangh unit and eggshell strength.Compared with prior art there is following beneficial effect: organic zinc, the probiotics of interpolation conciliate nitrogen powder, laying cycle of laying hens average egg weight and laying rate can be improve, significantly reduce feedstuff-egg ratio and soft-shelled egg rate, and significantly improve shell thickness, hangh unit and eggshell strength.
Detailed description of the invention
Following examples are described in detail premixed feed improving laying hen egg yield and Egg Quality and preparation method thereof; illustrative instead of determinate; several embodiments can be listed according to institute's limited range; therefore do not depart from the change under general plotting of the present invention and amendment, should belong within protection scope of the present invention.Embodiment
Improve a premixed feed for laying hen egg yield and Egg Quality, per tonly comprise following component (seeing the following form 1):
The premixed feed component of table 1 embodiment 1 ~ 4 and proportioning
The multidimensional used in embodiment 1 ~ 4, every kilogram comprises: vitamin A: 37440 ~ 46800KIU, vitamine D3: 13344 ~ 16680KIU, vitamin B2 >=19.82g, vitamin B6 >=12.8g, vitamin E >=100.08g, Vitamin K3 >=11.04g, vitamin B12 >=0.04g, nicotinic acid >=128.82g, pantothenic acid >=65.16g, folic acid >=2.74g.
The many ore deposits used in embodiment 1 ~ 4, every kilogram comprises: copper 26.94 ~ 28.74g, iron 99.0 ~ 105.6g, zinc 75.0 ~ 80.0g, manganese 102.0 ~ 108.8g, iodine 1.5 ~ 1.6g, selenium 0.38 ~ 0.41g.
The stone flour used in embodiment 1 ~ 4 is feed grade stone flour, and main component is calcium carbonate, and calcium content is more than 38%, and content of magnesium is below 0.5%, and other content of beary metal are within GB.
The calcium monohydrogen phosphate used in embodiment 1 ~ 4 is calcium hydrophosphate fodder, calcium content more than 22%, phosphorus content more than 17%.
The above embodiments 4 are most preferred embodiment.
Wherein, in embodiment 4, every kilogram of multidimensional comprises vitamin A: 37440KIU, vitamine D3: 13344KIU, vitamin B2: 19.82g, vitamin B6: 12.8g, vitamin E: 100.08g, Vitamin K3: 11.04g, vitamin B12: 0.04g, nicotinic acid: 128.82g, pantothenic acid: 65.16g, folic acid: 2.74g, surplus are carrier.
In embodiment 4, every kilogram of many ore deposit comprises copper: 26.94g, iron: 99.0g, zinc: 75.0g, manganese: 102.0, iodine: 1.5g, selenium: 0.38g, surplus are carrier.
The preparation method of the raising laying hen egg yield that embodiment 1 ~ 4 provides and the premixed feed of Egg Quality is:
(1) each component of precise;
(2) each component that step (1) weighs fed intake in feed mixing machine successively, feed intake while mix, the dog-house of feed mixing machine is divided into aniseed dog-house and small powder dog-house, and feeding sequence is as follows:
Aniseed dog-house: carrier, salt, stone flour, calcium monohydrogen phosphate;
Small powder dog-house: Choline Chloride, lysine, methionine, multidimensional, many ore deposits, phytase 5000, complex enzyme formulation, probiotics, separates nitrogen powder, organic zinc;
(3), after having fed intake, feed mixing machine proceeds mixing, and incorporation time T is 240S≤T < 360S;
(4) after having mixed, packing packing.
The each component raw material used in embodiment is commercially available prod, and they have passed through to pulverize and screen filtration before dispatching from the factory.In order to avoid the situation of caking appears in each component, need after a screen cloth when feeding intake, easy way goes out to install screen cloth at dog-house.In general, multidimensional and salt use 2*2mm screen filtration when feeding intake; Stone flour, calcium monohydrogen phosphate, other mineral matters and additive raw material use 4*4mm screen filtration.
Piglet s colibacillosis:
1, test site: proving ground, honest feed technology Co., Ltd Tangshan, Tianjin.
2, subjects: select 1800 same ages in days, body weight is close, the blue brown laying hen in healthy sea.
3, test grouping: be divided into test group and control group, often organize 5 repetitions, each repetition 180 laying hens, adopt identical feeding and management method, raise in same hen house by same poultry raiser, and test period continues 8 weeks.
4, feeding method:
Control group fed certain well-known commercially available brand complete diet pellet domestic, free choice feeding, day feeds 3 times, freely drinks water.
The premixed feed that test group adopts embodiment 4 to prepare is 5% make adequate diet with mass fraction, specifically comprises: corn 590kg, dregs of beans 270kg, oily 10kg, stone flour 80kg, premixed feed 50kg, laying hen that this adequate diet prepared is fed, free choice feeding, day feeds 3 times, freely drinks water.The nutritive index of the adequate diet of test group is: chicken metabolizable energy 2.64Mcal/kg, thick protein 16.33%, crude fat 3.64%, calcium 3.8%, total phosphorus 0.44%, methionine 0.35%, salt 0.31%.Specifically see the following form 2.
Table 2: adequate diet composition and trophic level
5, project is measured:
Egg laying performance index: day egg number, daily ingestion amount, average egg weight, laying rate, feedstuff-egg ratio, soft-shelled egg rate.
Egg Quality index: shell thickness, egg shape index (vertical footpath/transverse diameter), hangh unit, eggshell strength, eggshell relative mass (%).
In units of week, record the egg number of each group, egg size and food consumption respectively, calculate the day egg number of each group of experimental period, daily ingestion amount, average egg weight, laying rate, the data such as feedstuff-egg ratio.
6, results and analysis
(1) test group and control group are on the impact of performance in layers, see the following form 3.
Table 3 test group and control group are on the impact of production performance of layer chicken
| Project | Test group | Control group |
| Day egg number (piece) | 856.71±4.98 | 837.54±5.23 |
| Daily ingestion amount (g/d) | 115.98±2.54 | 119.62±3.15 |
| Average egg weight (g/d) | 57.84±2.47 | 55.62±2.38 |
| Feedstuff-egg ratio | 2.01±0.03 A | 2.15±2.65 B |
| Laying rate (%) | 95.18±2.66 | 93.06±2.84 |
Note: above show data and be expressed as: average ± standard deviation.Colleague compares, the different letter representation significant difference of subscript, represents and do not mark to represent that difference is not remarkable by same letter.
As can be seen from Table 3, the day egg number of test group and control group is respectively 856.71 pieces and 837.54 pieces, and not significantly (P>0.05), test group is compared with control group for difference, day, egg production improved 19.17 pieces, and raising ratio is 2.29%.
As can be seen from Table 3, the daily ingestion amount of test group and control group is respectively 115.98g and 119.62g, and not significantly (P>0.05), test group is compared with control group, and daily ingestion amount reduces 3.64g, and reduction ratio is 3.04% for difference.
As can be seen from Table 3, the average egg weight of test group and control group is respectively 57.84g and 55.62g, and not significantly (P>0.05), test group is compared with control group, and average egg weight increases 2.22g, and increase ratio is 3.99% for difference.
As can be seen from Table 3, the feedstuff-egg ratio of test group and control group is respectively 2.01 and 2.15, significant difference (P<0.05), and test group is compared with control group, and feedstuff-egg ratio reduces by 0.15, and reduction ratio is 6.76%.
As can be seen from Table 3, the laying rate of test group and control group is respectively 95.18% and 93.06%, and not significantly (P>0.05), test group is compared with control group, and it is 2.28% that laying rate increases ratio for difference.
As can be seen from Table 3, the soft-shelled egg rate of test group and control group is respectively 3.53% and 5.69%, significant difference (P<0.05), and test group is compared with control group, and it is 37.96% that soft-shelled egg rate reduces ratio.
(2) test group and control group are on the impact of laying hen Egg Quality, see the following form 4.
Table 4 test group and control group are on the impact of laying hen Egg Quality
| Project | Test group (20) | Control group |
| Shell thickness (mm) | 0.39±0.02 A | 0.36±0.02 B |
| Egg shape index (vertical footpath/transverse diameter) | 1.34±0.02 | 1.35±0.03 |
| Hangh unit | 86.72±3.51 A | 83.46±4.73 B |
| Eggshell strength (kg/cm 2) | 3.37±0.53 A | 2.83±0.67 B |
| Eggshell relative mass (%) | 10.13±0.85 | 9.53±0.89 |
As can be seen from Table 4, the shell thickness of test group, hangh unit and eggshell strength are all significantly higher than control group, significant difference (P<0.05); The eggshell relative mass of test group is higher than control group, and difference is not significantly (P>0.05)
(3) conclusion
Above result shows: in this test, the present invention 5% laying hen premixed feed improves laying cycle of laying hens average egg weight and laying rate, significantly reduce feedstuff-egg ratio and soft-shelled egg rate, and significantly improve shell thickness, hangh unit and eggshell strength, by reasonable disposition complete diet pellet daily ration, 5% laying hen premixed feed can have good production effect, also has significant economic benefit.
It should be noted last that: above embodiment is the unrestricted technical scheme of the present invention in order to explanation only, although with reference to above-described embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: still can modify to the present invention or equivalent replacement, and not departing from any modification or partial replacement of the spirit and scope of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (7)
1. one kind is improved the premixed feed of laying hen egg yield and Egg Quality, it is characterized in that, comprise the component (percentage refers to the effective content of component) of following parts by weight: calcium monohydrogen phosphate 140 ~ 160 parts, stone flour 220 ~ 240 parts, salt 55 ~ 65 parts, lysine 6 ~ 8 parts, methionine 20 ~ 24 parts, phytase 5,000 2 ~ 4 parts, complex enzyme formulation 3 ~ 5 parts, probiotics 3 ~ 5 parts, 10 ~ 14 parts, solution nitrogen powder, organic zinc 15% 4 ~ 6 part, Choline Chloride 50% 12 ~ 16 part, multidimensional 4 ~ 5 parts, 15 ~ 16 parts, many ore deposits and 442 ~ 496 parts, carrier.
2. a kind of premixed feed improving laying hen egg yield and Egg Quality according to claim 1, it is characterized in that the component of described premixed feed, according to weight parts: calcium monohydrogen phosphate 160 parts, stone flour 240 parts, salt 55 parts, lysine 8 parts, methionine 24 parts, phytase 5000 are 4 parts, complex enzyme formulation 5 parts, probiotics 5 parts, separate 14 parts, nitrogen powder, organic zinc 15% 6 parts, Choline Chloride 50% 16 parts, multidimensional 5 parts, 16 parts, many ore deposits and 442 parts, carrier.
3. a kind of premixed feed improving laying hen egg yield and Egg Quality according to claim 1 and 2, is characterized in that described multidimensional every kilogram comprises: vitamin A: 37440 ~ 46800KIU, vitamine D3: 13344 ~ 16680KIU, vitamin B2 >=19.82g, vitamin B6 >=12.8g, vitamin E >=100.08g, Vitamin K3 >=11.04g, vitamin B12 >=0.04g, nicotinic acid >=128.82g, pantothenic acid >=65.16g, folic acid >=2.74g.
4. a kind of premixed feed improving laying hen egg yield and Egg Quality according to claim 1 and 2, is characterized in that described many every kilogram, ore deposits comprise: copper 26.94 ~ 28.74g, iron 99.0 ~ 105.6g, zinc 75.0 ~ 80.0g, manganese 102.0 ~ 108.8g, iodine 1.5 ~ 1.6g, selenium 0.38 ~ 0.41g.
5. improve a preparation method for the premixed feed of laying hen egg yield and Egg Quality, it is characterized in that concrete steps are:
(1) each component of precise, with weight parts (percentage refers to the effective content of component): calcium monohydrogen phosphate 140 ~ 160 parts, stone flour 220 ~ 240 parts, salt 55 ~ 65 parts, lysine 6 ~ 8 parts, methionine 20 ~ 24 parts, phytase 5,000 2 ~ 4 parts, complex enzyme formulation 3 ~ 5 parts, probiotics 3 ~ 5 parts, 10 ~ 14 parts, solution nitrogen powder, organic zinc 15% 4 ~ 6 part, Choline Chloride 50% 12 ~ 16 part, multidimensional 4 ~ 5 parts, 15 ~ 16 parts, many ore deposits and 442 ~ 496 parts, carrier.
(2) each component that step (1) weighs fed intake in feed mixing machine successively, feed intake while mix, the dog-house of feed mixing machine is divided into aniseed dog-house and small powder dog-house, and feeding sequence is as follows:
Aniseed dog-house: carrier, salt, stone flour, calcium monohydrogen phosphate;
Small powder dog-house: Choline Chloride, lysine, methionine, multidimensional, many ore deposits, phytase 5000, complex enzyme formulation, probiotics, separates nitrogen powder, organic zinc;
(3), after having fed intake, feed mixing machine proceeds mixing;
(4) after having mixed, packing packing.
6. a kind of preparation method improving the premixed feed of laying hen egg yield and Egg Quality according to claim 5, it is characterized in that each component that described step (1) weighs, according to weight parts: calcium monohydrogen phosphate 160 parts, stone flour 240 parts, salt 55 parts, lysine 8 parts, methionine 24 parts, phytase 5000 are 4 parts, complex enzyme formulation 5 parts, probiotics 5 parts, separate 14 parts, nitrogen powder, organic zinc 15% 6 parts, Choline Chloride 50% 16 parts, multidimensional 5 parts, 16 parts, many ore deposits and 442 parts, carrier.
7. a kind of preparation method improving the premixed feed of laying hen egg yield and Egg Quality according to claim 5, is characterized in that the incorporation time T of described step (3) feed mixing machine is: 240S≤T < 360S.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106234824A (en) * | 2016-08-02 | 2016-12-21 | 广汉隆达饲料有限公司 | Trace element eggshell quality improver |
| CN106666181A (en) * | 2016-03-01 | 2017-05-17 | 青岛普兴生物科技有限公司 | Antibiotic-free, environment-friendly and high-energy layer feed and production technology thereof |
| CN106974126A (en) * | 2017-05-19 | 2017-07-25 | 山东省农业科学院家禽研究所 | It is a kind of to reduce egg blackening rate, the feed for improving Egg Quality and preparation method thereof |
| CN108244392A (en) * | 2018-02-28 | 2018-07-06 | 正大预混料（天津）有限公司 | A kind of premixed feed for improving Egg Production of Laying Hens quality and preparation method thereof |
| CN108402330A (en) * | 2018-02-28 | 2018-08-17 | 正大预混料（天津）有限公司 | A kind of premixed feed and preparation method thereof improving laying hen egg yield |
| CN108402329A (en) * | 2018-02-28 | 2018-08-17 | 正大预混料（天津）有限公司 | Improve the premixed feed and preparation method thereof of Egg Production of Laying Hens quality |
| CN108450660A (en) * | 2018-02-28 | 2018-08-28 | 正大预混料（天津）有限公司 | A kind of premixed feed and preparation method thereof improving laying hen egg yield and Egg Quality |
| CN108450659A (en) * | 2018-02-28 | 2018-08-28 | 正大预混料（天津）有限公司 | Improve the premixed feed and preparation method thereof of laying hen egg yield |
| CN108576480A (en) * | 2018-05-25 | 2018-09-28 | 河南牧鹤(集团)饲料有限公司 | A kind of composite premix feed for laying hen |
| CN109105625A (en) * | 2018-10-16 | 2019-01-01 | 上海鑫上润生物科技有限公司 | A kind of laying hen in egg laying peak period premixed feed of 5% environmentally friendly nonreactive |
| CN109123181A (en) * | 2018-08-14 | 2019-01-04 | 播恩生物技术股份有限公司 | Improve laying hen bone density and the premixed feed of eggshell quality and preparation method thereof |
| CN113142412A (en) * | 2021-02-01 | 2021-07-23 | 安徽广通生物科技有限责任公司 | Functional biological premix feed with microbial activity for laying hens |
| CN114747690A (en) * | 2022-04-19 | 2022-07-15 | 佛山播恩生物科技有限公司 | Premixed feed for improving quality of egg shells of laying hens and preparation method thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106666181A (en) * | 2016-03-01 | 2017-05-17 | 青岛普兴生物科技有限公司 | Antibiotic-free, environment-friendly and high-energy layer feed and production technology thereof |
| CN106234824A (en) * | 2016-08-02 | 2016-12-21 | 广汉隆达饲料有限公司 | Trace element eggshell quality improver |
| CN106974126A (en) * | 2017-05-19 | 2017-07-25 | 山东省农业科学院家禽研究所 | It is a kind of to reduce egg blackening rate, the feed for improving Egg Quality and preparation method thereof |
| CN108450660A (en) * | 2018-02-28 | 2018-08-28 | 正大预混料（天津）有限公司 | A kind of premixed feed and preparation method thereof improving laying hen egg yield and Egg Quality |
| CN108402330A (en) * | 2018-02-28 | 2018-08-17 | 正大预混料（天津）有限公司 | A kind of premixed feed and preparation method thereof improving laying hen egg yield |
| CN108402329A (en) * | 2018-02-28 | 2018-08-17 | 正大预混料（天津）有限公司 | Improve the premixed feed and preparation method thereof of Egg Production of Laying Hens quality |
| CN108244392A (en) * | 2018-02-28 | 2018-07-06 | 正大预混料（天津）有限公司 | A kind of premixed feed for improving Egg Production of Laying Hens quality and preparation method thereof |
| CN108450659A (en) * | 2018-02-28 | 2018-08-28 | 正大预混料（天津）有限公司 | Improve the premixed feed and preparation method thereof of laying hen egg yield |
| CN108576480A (en) * | 2018-05-25 | 2018-09-28 | 河南牧鹤(集团)饲料有限公司 | A kind of composite premix feed for laying hen |
| CN109123181A (en) * | 2018-08-14 | 2019-01-04 | 播恩生物技术股份有限公司 | Improve laying hen bone density and the premixed feed of eggshell quality and preparation method thereof |
| CN109105625A (en) * | 2018-10-16 | 2019-01-01 | 上海鑫上润生物科技有限公司 | A kind of laying hen in egg laying peak period premixed feed of 5% environmentally friendly nonreactive |
| CN113142412A (en) * | 2021-02-01 | 2021-07-23 | 安徽广通生物科技有限责任公司 | Functional biological premix feed with microbial activity for laying hens |
| CN114747690A (en) * | 2022-04-19 | 2022-07-15 | 佛山播恩生物科技有限公司 | Premixed feed for improving quality of egg shells of laying hens and preparation method thereof |
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