The breeding and hybridizing maternal line of a new line of recessive white feather chicken

doi:10.14088/j.cnki.issn0439-8114.2024.05.025

Abstract

Abstract: A combination of individual selection and family selection methods was used, and the main selecting indicators were growth traits and egg production traits. Breeding of the basic group of recessive white feathered chickens was carried out, and a new line of recessive white feathered chickens was established. Then, the new line of recessive white feathered chickens was used as the maternal parent for secondary matching, and its performance was determined. The results showed that after four generations of breeding,the birth weight decreased by 2.9 g, the weight of roosters at 15 weeks decreased by 486.0 g, and the weight decreased by 562.9 g at 43 weeks; at 15 weeks of age, the weight of the hens decreased by 334.6 g, and at 43 weeks of age, the weight decreased by 404.5 g. The age of first egg was advanced by 5.2 days, and the number of eggs lay at 43 weeks increased by 6.7. The slaughter performance and body size of group J×W were better than those of group Y×W. After four generations of breeding, the egg production performance and body weight were significantly improved for the new line of recessive white feathered chicken. The two-line hybridization was good.

Key words: recessive white feathered chicken, line breeding, growth performance, laying performance

CLC Number:

S831

SHEN Jie, WU Yan, PI Jin-song, PAN Ai-luan, HUANG Tao, LIANG Zhen-hua, ZHANG Hao, FU Ming, CHEN Ya-ru. The breeding and hybridizing maternal line of a new line of recessive white feather chicken[J]. HUBEI AGRICULTURAL SCIENCES, 2024, 63(5): 143-146.

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