CN104521882A - Five-toed black-speckle feather laying hen breeding method - Google Patents

Abstract

The invention discloses a five-toed black-speckle feather laying hen breeding method. Concubine chicken cocks having a five-toed characteristic and Hy-Line variety brown laying hen parent-generation female parents having a four-toed characteristic are selected to hybridization so as to breed F1-generation, F1-generation crossbreeding is performed to breed F2-generation, five-toed black-speckle feather cocks are selected from the F2-generationm, pure five-toed cocks, namely breeding underlying group 0-generation, are selected and kept after test crossing, the 0-generation is subjected to pure breeding selection of 2 to 3 generations. The five-toed black-speckle feather laying hen breeding method is mainly used for selecting high-egg-yield black-speckle feather chickens, and the black-speckle feather rate is higher than 95%, namely the high-egg-yield black-speckle feather laying hen are bred. The inheritance identification of a laying hen breed obtained by means of the five-toed black-speckle feather laying hen breeding method is obvious, produced eggs and the quality of spent chickens are excellent, and sell is facilitated.

Description

Five toe fiber crops plumage laying hen breeding methods

Technical field

The invention belongs to poultry breeding field, relate in particular to the breeding method of a kind of Novel egg chicken breed five toe fiber crops plumage laying hen.

Background technology

Layer breed in China market has " high-yield egg chicken " and " characteristic laying hen " two large type." high-yield egg chicken " is that egg production is high by the high-yield egg chicken breed system abroad introduced or China independently cultivates, and the egg size of the egg produced is large, is commonly called as " foreign egg "; " characteristic laying hen " refers to breed system containing Local chicken breeds blood relationship or kind, and egg production is not high, but the egg quality produced is excellent, is commonly called as " Countryside Egg " or " simulative local egg ".

Current, the cultivation of " characteristic laying hen " adopts two to be supporting hybrid method mostly.Male parent generally adopts China's Local chicken breeds, and the father and mother godmother of the brown shell high-yield egg chicken of maternal general employing originally.Its commodity egg hair color is comparatively mixed and disorderly, eggshell color is partially dark, is unfavorable for the sale of egg and superseded chicken, and does not have fixing genetic marker, be unfavorable for the protection of kind property right.

Summary of the invention

The invention provides a kind of characteristic layer breed breeding method.The layer breed utilizing the inventive method to cultivate has the macroscopic features of five toes, whole body fiber crops plumage, is different from existing characteristic layer breed on market.Meanwhile, the layer breed Egg Quality utilizing the inventive method to cultivate is excellent, egg production is high.Five toes, numb plumage feature can be used as the genetic marker of this kind of protection.Simultaneously compared with the similar laying hen on existing market, superseded chicken is best in quality, is beneficial to sale.

Specifically, the present invention is by the following technical solutions:

A kind of five toe fiber crops plumage laying hen breeding methods, is characterized in that, said method comprising the steps of:

1) the chicken wings & legs with brown sauce cock selecting to have five toe features and the blue brown shell layer father and mother in sea with four toe features, for hybridization of female parent, produce F1 generation;

2) F1 generation traversed by, produces F2 generation;

3) in F2 generation, selects five toes, numb plumage, and cock to be selected and remain five toes that isozygoty through test cross, is breeding underlying group 0 from generation to generation;

4) 0 from generation to generation through 2-3 pure breeding seed selection from generation to generation, selects, numb plumage rate >95% mainly for numb plumage, has namely been bred as five toe fiber crops plumage laying hens.

Preferably, in step 4), also select for egg production, wherein character variation coefficient <10%.

The beneficial effect that technical solution of the present invention produces:

1. the egg quality that the laying hen cultivated produces is good: eggshell pink colour, egg size is about 50g, and yolk ratio reaches 30%, and albumen hangh unit reaches 80, has the surface consistent with Countryside Egg and outstanding Egg Quality.

2. the laying hen egg yield cultivated is high: within 72 weeks, egg production can reach 270, than existing characteristic layer breed egg production height 10-20.

3. the laying hen cultivated has the unanimously macroscopic features of uniqueness: five toes and numb plumage are the genetic markers of kind, are convenient to variety ecotype, are conducive to kind false proof.

Accompanying drawing explanation

Fig. 1 illustrates the Technology Roadmap of the inventive method.

Embodiment

The present invention is described in detail below in conjunction with accompanying drawing and instantiation.

For existing characteristic layer breed Problems existing, we adopt such scheme to solve:

As shown in Figure 1, the blue brown shell layer father and mother in sea first choosing chicken wings & legs with brown sauce cock and the four toe features with five toe features, for hybridization of female parent, produce F1 generation; F1 generation traversed by, produces F2 generation; In F2 generation, selects five toes, numb plumage, and cock to be selected and remain five toes that isozygoty through test cross, is breeding underlying group (0 from generation to generation); 0 from generation to generation through 2-3 pure breeding seed selection from generation to generation, and every five toes from generation to generation are fixed, and mainly select numb plumage, egg production and Egg Quality, major traits coefficient of variation <10%, has namely been bred as five toe fiber crops plumage laying hens.

Embodiment: below by the process of cultivation five toe fiber crops plumage laying hen is described further combined with example, comprise the steps:

(1) hybridize: select grow up chicken wings & legs with brown sauce cock 100, extra large blue brown shell layer father and mother godmother these 1500, mixed essence breeding, collects kind of egg 4 days, obtains kind of 5000 pieces, an egg, machine hatch, obtain F1 generation chick about 4000, male and female roughly half and half;

(2) traversed by: F1 generation routine is raised, be bred as finishing period and select and remain well-developed cock about 200, hen eliminates a small amount of depauperation person, obtains Adult Hen about 1500.Mix smart traversed by during 30 week age, collect kind of egg 7 days, obtain kind of 8000 pieces, an egg, machine hatch, obtain F2 for chick about 6800, male and female roughly half and half;

(3) 0 from generation to generation: F2 is five toes for cock, but has half to be five toe/tetra-toe heterozygotes in theory, to select and remain five toe homozygote cocks through test cross; Hen has half to be five toes, phenotype, directly select five toe hens.F2 male and female chicken occurs that plumage look is separated: numb plumage about 72.9%, black plumage about 14.4%, Bai Yuyue 12.7%, eliminates black plumage and white feather chicken.Five toes that isozygoty selected and remain, numb plumage chicken are 0 underlying group of breeding from generation to generation, and underlying group hen number is greater than 1000;

(4) seed selection is from generation to generation continued: 0 generation, every main selection numb plumage, egg production from generation to generation, until numb plumage rate >95%, egg production coefficient of variation <10%, be namely bred as five toes fiber crops plumage laying hens through 2-3 pure breeding seed selection from generation to generation.Per generation sets up family 80-100, improves egg production with 300 age in days egg production families selecting.Take into account the selection of egg size, eggshell color simultaneously.The 3rd generation 72 weeks egg productions that we cultivate reach 271.1 pieces, average egg weight 50.2g, eggshell pink colour, and yolk ratio reaches 30%, and albumen hangh unit reaches 80, hen fiber crops plumage rate 96.5%.

With specific embodiment, embodiments of the present invention are described in detail by reference to the accompanying drawings above, but the invention is not restricted to above-mentioned embodiment, in the ken that art those of ordinary skill possesses, can also make a variety of changes under the prerequisite not departing from present inventive concept.

Claims (2)

1. five toe fiber crops plumage laying hen breeding methods, is characterized in that, said method comprising the steps of:

1) the chicken wings & legs with brown sauce cock selecting to have five toe features and the blue brown shell layer father and mother in sea with four toe features, for hybridization of female parent, produce F1 generation;

2) F1 generation traversed by, produces F2 generation;

3) in F2 generation, selects five toes, numb plumage, and cock to be selected and remain five toes that isozygoty through test cross, is breeding underlying group 0 from generation to generation;

4) 0 from generation to generation through 2-3 pure breeding seed selection from generation to generation, selects, numb plumage rate >95% mainly for numb plumage, has namely been bred as five toe fiber crops plumage laying hens.

2. five toe fiber crops plumage laying hen breeding methods as claimed in claim 1, is characterized in that, in step 4), also select for egg production, wherein character variation coefficient <10%.