Method for breeding new strain of chickens with iron feet and yellow speckle feathers

Abstract

The invention discloses a method for breeding a new strain of chickens with iron feet and yellow speckle feathers and relates to the technical field of poultry breeding. The method comprises the following steps of selecting cocks with relatively large weight from the chickens with iron feet and yellow speckle feathers as paternal lines which are divided into a line A and a line B; selecting hens with relatively small weight and high egg yield as maternal lines which are divided into a line C and a line D; separating recessive white feather chickens as a paternal line which is a line H; adopting a family line breeding method to breed in a monomer cage, and adopting an independent elimination method to perform multi-character indicator selective breeding; adopting a prophase egg laying performance identification selection method and selecting a high-yield family line and a high-yield hen to breed a next generation; measuring combining ability, and respectively performing positive and negative mating measurements; matching four lines to breed a parental generation, and hybridizing the parental generation to breed the new strain of the four-hybridization chickens with the iron feet and the yellow speckle feathers. Compared with the prior art, the method for breeding the new strain of the chickens with the iron feet and the yellow speckle feathers has the advantages that the egg yield is up to 135 per year and is improved by 28.57 percent; the weight of a 110-day-old meat chicken is up to 1.5kg, and the meat chicken is taken out of a fence to be sold in the market 10 days early.

Description

technical field [0001] The invention relates to the technical field of poultry breeding, in particular to a method for cultivating new strains of iron-legged jute feather chickens. Background technique [0002] my country's local chicken breeds are rich in resources, and its meat is tender, delicious, and nutritious, and is deeply favored by consumers. In the mid-alpine region of northwestern Guangxi in Guangxi, the average altitude is 800 meters, the temperature difference between day and night is large, and the rainfall is humid. There are better local chicken breeds in these areas, such as the iron-footed jute feather chicken in Nandan County, but this iron-footed chicken The low egg-laying performance of jute feather chickens restricts the development of large-scale breeding. It is necessary to select varieties. After group breeding of varieties, the feather color tends to be consistent. The annual egg production of breeders reaches 105, and the growth rate of broilers i...

AI Technical Summary

Problems solved by technology

In the mid-alpine region of northwestern Guangxi in Guangxi, the average altitude is 800 meters, the temperature difference between day and night is large, and the rainfall is humid. There are better local chicken breeds in these areas, such as the iron-footed jute feather chicken in Nandan County, but this iron-footed chicken The low egg-laying performance of jute feather chickens restricts the development of large-scale breeding. It is necessary to select varieties. After group breeding of varieties, the feather color tends to be consistent. The annual egg production of breeders reaches 105, and the growth rate of broilers is 120. The age reaches 1.5 kg; due to lack of mating line selection, the feather color has changed, the difference has widened, and the body size is also inconsistent. The phenomenon of low egg production, slow growth and uneven body weight has not been fundamentally improved

Images