Hybrid production method of high-egg-yield and grain-saving laying chickens
A technology for laying hens and grain saving, applied in the field of poultry genetics and breeding, can solve the problems of unstable quality and traits of laying hens, insufficient nutrient transformation and absorption, and insufficient supply of eggs, and achieves the effects of good body appearance, docile temperament and early start of production.
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[0042] The Jianghan chicken and the Babcock chicken were crossed to obtain the D line, and the following closed family was selected for breeding, and the individual with high egg production was selected to form the first female parent.
[0043]That is, the offspring produced by crossing Jianghan chicken as the male parent and Babcock chicken as the female parent, and the offspring produced by Jianghan chicken as the female parent and Babcock chicken as the male parent, are cross-crossed, and then selected and bred to obtain the first A female parent.
[0044] The breeding of the first female parent includes the following procedures:
[0045] (1) Forming a family line: the maternal line is 1:10, the paternal line is 1:8, and each generation has 58 maternal lines and 57 paternal lines;
[0046] (2) Age selection: record the initial indicators, eliminate stunted and genetically defective individuals, keep all healthy female chicks that meet the requirements, and keep 40% of the ...
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