CN103814864B - A kind of green-egg-shelled duck selection - Google Patents
A kind of green-egg-shelled duck selection Download PDFInfo
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- CN103814864B CN103814864B CN201410072641.8A CN201410072641A CN103814864B CN 103814864 B CN103814864 B CN 103814864B CN 201410072641 A CN201410072641 A CN 201410072641A CN 103814864 B CN103814864 B CN 103814864B
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Abstract
The invention discloses a kind of green-egg-shelled duck selection, it is characterized in that: comprise following steps: (1) small towns of more than 5 collects the kind egg that appearance traits meets this kind, green-egg-shelled rate reaches the male and female duck of more than 40% from producing region, center; (2) will plant the hatching of egg washing and sterilizing, and eliminate underproof newly-hatched duckling, and make kind external form relatively consistent, then mixed group feeding is fed to 120 ages in days, sets up the green-egg-shelled duck underlying group in units of family according to 2 ♂: 10 ♀ ratios; (3) formulate multiple selection index, measure process: at least 30 familys, each family record egg production egg number every day, egg size, green-egg-shelled and white shell egg number; Each generation eliminates white shell egg kind duck, every 2 years generations of breeding, is improved purity and the egg laying performance of oocyan gene, avoid full sibs and half-sib mating by test cross; Green-egg-shelled product group is obtained by the seed selection of 3-5 generation.
Description
Technical field
The present invention relates to the breeding method of poultry, particularly the strain breeding method of egg duck.
Background technology
China is Dan Ya producing country maximum in the world and country of consumption, and the raising quantity of egg duck in 2012 has reached 3.16 hundred million, adds 31.60% than 2011, produces 511.79 ten thousand tons, duck's egg.According to ASSOCIATE STATISTICS display, the proportion of egg duck in aviculture is increasing, and the consumption proportion of duck, duck's egg still has the trend of rising.As everyone knows, the contribution of kind in aquaculture is more than 50%, but the benign epilepsy of the high-quality and efficient egg duck of China is not yet set up, and high yield degeneration-resistant egg duck varieties is few.Also there is the problem that the overall cultivation level of industry is lower, kind is single.Although have the local duck varieties of excellent hereditary capacity, lack effective exploitation, the breeding work of duck is made slow progress, and scientific and technological content is lower, and aquatic bird breeding enterprise is few.
Both at home and abroad leading and China always in the breeding of meat duck, has obtained good achievement in the growth rate and the price of deed of meat duck.As Chinese Academy of Agricultural Sciences's herding the breed system " Z-type Beijing duck " cultivated, 35 age in days body weight 2.92 kilograms, feed conversion rate 2.1:1; 42 age in days body weight reach 3.22 kilograms, feed conversion rate 2.16:1.But the breeding level of egg duck is also in the starting stage, although there is the govern-house-variety (Dual Gold, mountain sheldrake, Shaoxing duck etc.) of some egg ducks in China, high yield degeneration-resistant green-egg-shelled duck breed system innovation breeding work is still needed and is done larger effort.
Green-egg-shelled commercially has good price competitiveness compared with white shell egg, and therefore, green shell rate, egg production and feed conversion rate belong to important quantitative character in the strain breeding of egg duck.Egg production is due to the method for the low usual employing family selective breeding of heritability, and research shows, eggshell color is relevant to kind or strain, accounts for more than 80% of total phenotypic variation, and heritability is higher.Therefore, how egg production is improved by families selecting in conjunction with the method for individual choice and green shell rate is the field being worth in the seed selection of egg duck specialized strain inquiring into.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of method improving egg duck egg production and the green shell rate of egg.
Technical scheme of the present invention is: a kind of green-egg-shelled duck selection, comprises following steps:
(1) from producing region, center, the kind egg that appearance traits meets this kind, green-egg-shelled rate reaches the male and female duck of more than 40% is collected in the small towns of more than 5;
(2) will plant the hatching of egg washing and sterilizing, and eliminate underproof newly-hatched duckling, and make kind external form relatively consistent, then mixed group feeding is fed to 120 ages in days, sets up the green-egg-shelled duck underlying group in units of family according to 2 ♂: 10 ♀ ratios;
(3) multiple selection index is formulated, the kind duck of each family adopts single raising in cages, record egg production, each generation eliminates white shell egg kind duck, every 2 years generations of breeding, the next generation sets up new family again according to Age at first laying, egg production, green-egg-shelled rate, is improved purity and the egg laying performance of oocyan gene, avoid full sibs and half-sib mating by test cross; Green-egg-shelled product group is obtained by the seed selection of 3-5 generation.
Multiple selection index (
i), namely in units of family, with 500 days egg productions 260 pieces, green shell rate 80%, egg size 65 grams is three objective traits, formulates respectively successively and lays eggs 0.2, the weighted value of green shell rate 0.6 and egg size 0.2, formulate multiple selection index by following formula:
In formula:
xithe phenotypic value of objective trait,
biit is proterties
xiweight coefficient, i.e. partial regression coefficient, according to
ibe worth selecting and remain of size determination family, but individuality outstanding individually in the family that is eliminated also can be selected and remain.
Beneficial effect of the present invention: by determining that objective trait, formulation multiple selection index, families selecting carry out the seed selection of high yield green-shell line in conjunction with individual choice, good genetic progress can be obtained within 3-5 generation.Green-egg-shelled has the better market price compared with white shell egg, adopts above-mentioned system of selection can better economic benefit.
Embodiment
1, from producing region, center, kind of 1800 pieces, an egg is collected in the small towns of more than 5, and male and female duck appearance traits meets this kind, wherein requires that green-egg-shelled rate reaches about 50%;
2, the hatching of egg washing and sterilizing will be planted, eliminate underproof newly-hatched duckling, make kind external form relatively consistent.Then mixed group feeding is fed to 120 ages in days, sets up the green-egg-shelled duck underlying group containing 60 familys according to 2 ♂: 10 ♀ ratios (wherein 1 ♂ is for subsequent use);
3, formulate multiple selection index (
i), namely in units of family, with 500 days egg productions 260 pieces, green shell rate 80%, egg size 65 grams is three objective traits, formulates respectively successively and lays eggs 0.2, the weighted value of green shell rate 0.6 and egg size 0.2.Multiple selection index is formulated by following formula:
In formula:
xithe phenotypic value of objective trait,
biit is proterties
xiweight coefficient, i.e. partial regression coefficient, according to
ibe worth selecting and remain of size determination family, but individuality outstanding individually in the family that is eliminated also can be selected and remain;
Mensuration process: at least 30 familys, each family record egg production egg number every day, egg size, green-egg-shelled and white shell egg number; Each generation eliminates white shell egg kind duck, every 2 years generations of breeding, is suitably improved purity and the egg laying performance of oocyan gene by test cross, avoids full sibs and half-sib mating; Green-egg-shelled product group is obtained by the seed selection of 3-5 generation.
Claims (1)
1. a green-egg-shelled duck selection, is characterized in that: comprise following steps:
(1) from producing region, center, the kind egg that appearance traits meets this kind, green-egg-shelled rate reaches the male and female duck of more than 40% is collected in the small towns of more than 5;
(2) will plant the hatching of egg washing and sterilizing, and eliminate underproof newly-hatched duckling, and make kind external form relatively consistent, then mixed group feeding is fed to 120 ages in days, sets up the green-egg-shelled duck underlying group in units of family according to 2 ♂: 10 ♀ ratios;
(3) multiple selection index is formulated, the kind duck of each family adopts single raising in cages, record egg production, each generation eliminates white shell egg kind duck, every 2 years generations of breeding, the next generation sets up new family again according to Age at first laying, egg production, green-egg-shelled rate, is improved purity and the egg laying performance of oocyan gene, avoid full sibs and half-sib mating by test cross; Green-egg-shelled product group is obtained by the seed selection of 3-5 generation;
Multiple selection index (
i), namely in units of family, with 500 days egg productions 260 pieces, green shell rate 80%, egg size 65 grams is three objective traits, formulates respectively successively and lays eggs 0.2, the weighted value of green shell rate 0.6 and egg size 0.2, formulate multiple selection index by following formula:
In formula:
xithe phenotypic value of objective trait,
biit is proterties
xiweight coefficient, i.e. partial regression coefficient, according to
ibe worth selecting and remain of size determination family, but individuality outstanding individually in the family that is eliminated also can be selected and remain.
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| CN201410072641.8A CN103814864B (en) | 2014-03-03 | 2014-03-03 | A kind of green-egg-shelled duck selection |
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| CN103814864B true CN103814864B (en) | 2015-09-23 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104206357B (en) * | 2014-09-10 | 2017-11-17 | 广西扬翔农牧有限责任公司 | A kind of Luchuan pig synthesized index model method |
| CN106857398A (en) * | 2017-03-08 | 2017-06-20 | 江苏农牧科技职业学院 | A kind of public kind duck quick breeding method based on Apparent character |
| CN108029628B (en) * | 2017-11-30 | 2021-03-26 | 温氏食品集团股份有限公司 | Breeding method capable of improving egg yield of Muscovy ducks |
| CN109169503B (en) * | 2018-08-29 | 2021-04-27 | 扬州大学 | Screening method of duck special for rice-duck farming |
| CN110651756B (en) * | 2019-10-28 | 2021-08-10 | 北京市华都峪口禽业有限责任公司 | Multi-character seed selection method for livestock and poultry |
| CN113016718B (en) * | 2021-04-25 | 2022-01-18 | 中国农业大学 | Poultry matching optimization method based on unequal genetic contribution of parents |
Family Cites Families (3)
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| CN100421549C (en) * | 2004-09-15 | 2008-10-01 | 河南农业大学 | Method for cultivating and producing dwarf green shell edge chicken |
| CN102318583A (en) * | 2011-10-09 | 2012-01-18 | 贵州龙里生态农技综合开发中心 | Method for cultivating green-shell egg laying hens |
| CN102696541A (en) * | 2012-06-04 | 2012-10-03 | 王生雨 | Production method of high-yield blue-shell laying hens |
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Effective date of registration: 20201026 Address after: Damutun, Xidu village, Chengguan Town, Debao County, Baise City, Guangxi Zhuang Autonomous Region Patentee after: Qingnianhe duck farm in Debao County Address before: 550025 Guizhou, Guizhou University, Huaxi, north campus, science and Technology Department Patentee before: Guizhou University |
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