Method for breeding long and short velvet auto-sexing pigeons

Abstract

The invention relates to a breeding method of pigeons, in particular to a breeding method of long and short velvet auto-sexing pigeons, and belongs to the technical field of biology. The invention discloses an auto-sexing pigeon breeding method, which comprises the following steps of: identifying the genotype of a native-down gene locus which is positioned on a Z chromosome of a breeding pigeon and is used for controlling the long and short fluff character of young fluff feather, breeding a long fluff pure line and a short fluff pure line, taking male pigeons and female pigeons with different genotypes as male parents and female parents, and hybridizing according to a certain combination to generate commercial generations; male and female of commercial generations can be identified according to the phenotypes of long down and short down of nestling down feather in the first five days after the nestling pigeons are hatched. According to the method provided by the invention, the cost of early sex identification in the traditional pigeon commercial generation breeding process is greatly reduced, meanwhile, compared with the existing feather color auto-identification method, the method is not limited by strict matching of parent generation feather colors, the application range is wider, breeding materials can be more flexibly selected to breed a pigeon commercial line, and the breeding efficiency is improved. The method has important breeding value and economic value.

Description

technical field [0001] The invention relates to a method for breeding pigeons, in particular to a method for breeding male and female pigeons with long and short cashmere, and belongs to the field of biotechnology. Background technique [0002] Pigeons are the fourth largest poultry in my country after chickens, ducks and geese. As of 2021, the national stock has exceeded 80 million pairs. At present, the main feather color strains in the production of egg pigeons in my country include American King Pigeon, Kanu Pigeon, Texon Pigeon, and Texon Hybrid Derivatives. It is the main species cultivated in our country. At present, one of the bottlenecks restricting the development of my country's pigeon industry is the early sex identification of pigeons. Pigeons, as a late-maturing bird, weigh about 20g after hatching, are weak in constitution, and cannot perform anal inversion to identify males and females, and there is almost no difference in appearance between different gender...

AI Technical Summary

Problems solved by technology

However, the Teikesen pigeon strain has a large body size and average egg production performance, so it is not suitable as a breeding material for small grain-saving egg pigeons. In addition, the feather color of this strain has strict requirements on the matching method of the parent generation's feather color. Compared with other breeds When crossbreeding, the success rate of self-separation will be reduced, especially when using Texen pigeons to breed egg pigeons, because the genetic background of white feather color is very complicated, and its genetic law is not clear at present, so it cannot be introduced into the current market. The high-yield white feather breeds are crossed with it, otherwise it will destroy the original feather color self-identification mode of Texen pigeons, resulting in the inability of the offspring to distinguish between male and female

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