Breeding method for yellow-feather beard hens and applications of breeding method

Abstract

The invention relates to the technical field of poultry breeding, in particular to a breeding method for yellow-feather beard hens and applications of the breeding method. The breeding method comprises the steps as follows: Huiyang bearded chickens as male parents and White Leghorns as female parents are subjected to hybridization, hybrid chickens with suitable traits are selected for backcrossing, crossing and the like, and the yellow-feather beard hens with stable inheritance are finally obtained. Genetic effects of feather color and beard genes are brought into full play by combining genetic knowledge, and the high-yield yellow-feather beard hens are bred. The method can breed a new breed of yellow-feather beard hens with high egg production and stable heredity. Compared with the pure Huiyang bearded chickens, first laying is early, the egg yield is increased by 84.6%, and the yellow-feather and beard appearance characteristics and the reproduction characteristic of pink shell eggsof the Huiyang bearded chickens are retained.

Description

technical field

[0001] The invention relates to the technical field of poultry breeding, in particular to a method for breeding yellow-feathered bearded laying hens and an application thereof. Background technique

[0002] Huiyang bearded chicken, also known as Sanhuang bearded chicken, is an excellent local meat chicken breed. It is famous both at home and abroad for its unique meat quality and appearance characteristics of three yellow beards. When the chicks are born, their feathers, beak and feet are all yellow, so they are called Sanhuang. Adult chickens are light yellow all over, and the belly feathers are lighter than the back, but some tail feathers are also black inside. This breed of chicken has no wattles or very small wattles, and developed and open beard feathers grow on both sides of the cheeks and under the jaw, which resemble beards, so it is named bearded chicken ( figure 1 ). Huiyang bearded chicken has good fattening performance and strong fat depositio...

Examples

Embodiment 1

[0045] Example 1: Hybridization of Huiyang bearded chicken and Bailaihang chicken

[0046] Two breeding materials (F0) are required for the breeding of yellow-feathered bearded laying hens: one is the Huiyang bearded hen rooster ( figure 1 ), from Guangdong Jinzhong Agriculture and Animal Husbandry Technology Co., Ltd.; one is Bailai Aircraft Carrier Chicken, from the Poultry Genetic Resources and Breeding Experimental Base of China Agricultural University.

[0047] First, Huiyang bearded chickens and Bailai aircraft carrier chickens were crossed at a ratio of 1:15 to obtain an F1 generation population, including 678 roosters and 683 hens. Analyzing the appearance characteristics of the F1 generation population, it was found that all individuals of the F1 generation had beards, which indicated that the beard gene of Huiyang bearded chickens was homozygous, and the beard gene was more dominant than the non-beard gene. In the F1 generation population, the roosters were all whit...

Embodiment 2

[0050] Example 2: Backcrossing and crosscrossing of the F1 generation of Huiyang bearded chickens and Bailaihang chickens

[0051] All cocks in the hybrid F1 generation population have the appearance phenotype of white feathers and beards, and some F1 generation cocks are used to backcross with Bailai aircraft carrier chickens to obtain the F2 generation population of backcross group 1 (75% of Bailaihang pedigree); The yellow-feathered bearded hens in the F1 generation population were cross-crossed to obtain the F2 generation population of cross-crossing group 1 (Bai Laihang pedigree 50%); the bearded yellow-feathered hens in the F1 generation population were backcrossed with the Bai Laihang roosters to obtain the backcross The F2 generation population of crossing group 2 (75% of Bailaihang bloodlines); backcrossing the yellow-feathered bearded hens and Huiyang bearded chicken roosters in part of the F1 generation population to obtain the F2 generation population of backcrossin...

Embodiment 3

[0056] Example 3: Establishment of a basic group for the selection and breeding of new breeds of bearded laying hens

[0057] The beard genotype was identified for the yellow-feathered roosters of the F2 generation of the cross-cross group 1, and 50 individuals with beard genotype homozygosity were selected (50% of the Bailaihang lineage). At the same time, 150 hens with whiskers, yellow feather phenotype, and high egg production performance were selected from the F2 population of cross-crossing group 1 (50% of Bailaihang bloodline); 150 hens with yellow feather phenotype and high egg-laying performance (75% of Bailaihang bloodline); 150 hens with beards and high egg-laying performance (75% of Bailaihang bloodline) were selected from the F2 population of backcross group 2 ); from the F2 population of backcross group 3, select 150 hens (25% of Bailaihang pedigree) with homozygous beard gene, yellow feathers and high egg-laying performance. These selected individuals were used ...

technical field

[0001] The invention relates to the technical field of poultry breeding, in particular to a method for breeding yellow-feathered bearded laying hens and an application thereof. Background technique

[0002] Huiyang bearded chicken, also known as Sanhuang bearded chicken, is an excellent local meat chicken breed. It is famous both at home and abroad for its unique meat quality and appearance characteristics of three yellow beards. When the chicks are born, their feathers, beak and feet are all yellow, so they are called Sanhuang. Adult chickens are light yellow all over, and the belly feathers are lighter than the back, but some tail feathers are also black inside. This breed of chicken has no wattles or very small wattles, and developed and open beard feathers grow on both sides of the cheeks and under the jaw, which resemble beards, so it is named bearded chicken ( figure 1 ). Huiyang bearded chicken has good fattening performance and strong fat depositio...

Examples

Embodiment 1

[0045] Example 1: Hybridization of Huiyang bearded chicken and Bailaihang chicken

[0046] Two breeding materials (F0) are required for the breeding of yellow-feathered bearded laying hens: one is the Huiyang bearded hen rooster ( figure 1 ), from Guangdong Jinzhong Agriculture and Animal Husbandry Technology Co., Ltd.; one is Bailai Aircraft Carrier Chicken, from the Poultry Genetic Resources and Breeding Experimental Base of China Agricultural University.

[0047] First, Huiyang bearded chickens and Bailai aircraft carrier chickens were crossed at a ratio of 1:15 to obtain an F1 generation population, including 678 roosters and 683 hens. Analyzing the appearance characteristics of the F1 generation population, it was found that all individuals of the F1 generation had beards, which indicated that the beard gene of Huiyang bearded chickens was homozygous, and the beard gene was more dominant than the non-beard gene. In the F1 generation population, the roosters were all whit...

Embodiment 2

[0050] Example 2: Backcrossing and crosscrossing of the F1 generation of Huiyang bearded chickens and Bailaihang chickens

[0051] All cocks in the hybrid F1 generation population have the appearance phenotype of white feathers and beards, and some F1 generation cocks are used to backcross with Bailai aircraft carrier chickens to obtain the F2 generation population of backcross group 1 (75% of Bailaihang pedigree); The yellow-feathered bearded hens in the F1 generation population were cross-crossed to obtain the F2 generation population of cross-crossing group 1 (Bai Laihang pedigree 50%); the bearded yellow-feathered hens in the F1 generation population were backcrossed with the Bai Laihang roosters to obtain the backcross The F2 generation population of crossing group 2 (75% of Bailaihang bloodlines); backcrossing the yellow-feathered bearded hens and Huiyang bearded chicken roosters in part of the F1 generation population to obtain the F2 generation population of backcrossin...

Embodiment 3

[0056] Example 3: Establishment of a basic group for the selection and breeding of new breeds of bearded laying hens

[0057] The beard genotype was identified for the yellow-feathered roosters of the F2 generation of the cross-cross group 1, and 50 individuals with beard genotype homozygosity were selected (50% of the Bailaihang lineage). At the same time, 150 hens with whiskers, yellow feather phenotype, and high egg production performance were selected from the F2 population of cross-crossing group 1 (50% of Bailaihang bloodline); 150 hens with yellow feather phenotype and high egg-laying performance (75% of Bailaihang bloodline); 150 hens with beards and high egg-laying performance (75% of Bailaihang bloodline) were selected from the F2 population of backcross group 2 ); from the F2 population of backcross group 3, select 150 hens (25% of Bailaihang pedigree) with homozygous beard gene, yellow feathers and high egg-laying performance. These selected individuals were used ...

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