Breeding method for a new strain of grain-saving green shank recessive white feather broiler chicken

Abstract

The invention discloses a breeding method for a new grain-saving blue-shank recessive white-feather broiler line, which belongs to the technical field of molecular breeding. The invention adopts the molecular assisted selection method to identify the genotypes of the chicken recessive white feather gene and the sex-linked dwarf gene, can quickly determine the genotype, and produce a grain-saving blue-shank recessive white-feather broiler line with a genotype of cc / dwdw. The method can avoid the tediousness of test-cross breeding, shorten the generation interval, and can breed a new line of grain-saving blue-shank recessive white-feather broiler in only 2 generations, which effectively reduces the breeding cost. The new line of grain-saving blue-shank recessive white-feather broiler bred by the method has the advantages of small individual size, less material consumption, low basal metabolism, high egg production rate, delicious meat, high stocking density, high feed return, cost saving, etc. , which can be directly produced as commercial chickens, and can also be used in supporting applications.

Description

technical field [0001] The invention relates to a breeding method for a new strain of grain-saving blue-shin and white-feathered broiler chickens, in particular to a method for quickly identifying genotypes and gene fragment deletions by using PCR technology, and belongs to the technical field of poultry molecular breeding. Background technique [0002] With the continuous growth of people's economic income and the improvement of living standards, the indicators of poultry products in aspects such as taste, flavor and safety are more and more valued by consumers. At present, in broiler production, the number of imported fast and large white-feather broiler chickens or colored-feather broiler breeds has begun to decline, and the number of high-quality yellow-feather broiler chickens has continued to rise. Especially in most areas of our country, high-quality broilers with green feet and hemp feathers are more favored by consumers. The market price is about 15-40% higher than ...

AI Technical Summary

Problems solved by technology

But the main problem that exists in these cross-breeding complete sets is: because adopting the introduced fast-growing recessive white-feathered chicken breed in the complete set, firstly, the female parent consumes a lot of materials, which is uneconomical for production, and secondly, commercial chickens have more The external blood directly affects the flavor of the meat, and the complexity of seed production increases the production cost of commercial chickens. At the same time, commercial chickens have poor adaptability and are not suitable for the current ecological grazing breeding methods in my country.

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