Hybrid production method of high-egg-yield and grain-saving laying chickens

Abstract

The invention relates to a hybrid production method of high-egg-yield and grain-saving laying chickens. The hybrid production method comprises the following steps of (1) hybridizing Jianghan chickensand Babcock chickens to obtain D-line chickens, and breeding to form first female parents; (2) hybridizing Babonate Heikang chickens and Hongshan chickens to obtain C-line chickens, breeding, and selecting and remaining slow-feathering pure gene bodies to form first male parents; (3) hybridizing male parents of aulic yellow dwarf chickens and female parents of the Jianghan chickens to obtain E-line chickens, breeding, and selecting and remaining dwarf bodies with fast feathering and recessive white feathers to form terminal male parents; (4) hybridizing the first male parents and the first female parents to generate parent hens; (5) hybridizing the parent hens and the terminal male parents to obtain commercial chickens. The hybrid production method has the beneficial effects that the commercial chickens with good body type and appearance, stable breeding performance, high disease resistance, high survival rate and egg laying rate, early laying, excellent egg quality, grain-saving effect and mild temperament are obtained by selecting proper complete set lines.

Description

technical field [0001] The invention relates to a seed production method of high-yield and grain-saving laying hens, belonging to the field of poultry genetics and breeding. Background technique [0002] Eggs are rich in cholesterol and rich in nutrition. An egg weighs about 50 grams, contains 6-7 grams of protein and 5-6 grams of fat. The amino acid ratio of egg protein is very suitable for the physiological needs of the human body, easy to be absorbed by the body, the utilization rate is as high as 98%, and the nutritional value is very high. It is one of the foods that humans often eat. However, at present, domestic hen species have a low egg production, resulting in a state in which the number of eggs is in short supply. Even if a large amount of feed is fed, it is difficult to increase the egg production, which shows that the current chickens have the disadvantage of insufficient nutrient conversion and absorption; the layer hen species that currently meet the market de...

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