Slaughter type high-quality chilling fresh chicken breeding method

Abstract

The invention relates to a slaughter type high-quality chilling fresh chicken breeding method. The breeding method includes: selecting recessive white-feather chickens (B line) having green shins and yellow skins as first male parents, and selecting large cockscomb high yield chickens (C line) having yellow shins and yellow skins as first female parents; hybridizing the B line and the C line to acquire parental generations (BC system) to be as final female parents according to the heredity principle that a green shin gene is sex-linked and an autosome controls a skin color gene, wherein parental chickens can be distinguished through the shin color, the shins of the female chickens are green, and the shins of the male chickens are yellow. using yellow-feather fast-growing chickens (A line) having green shins, yellow skins, and large cockscombs as final male parents, producing commodity chickens (ABC) by A line male X (B line male X C line female) female mating hybrid, wherein commodity male and female chickens have green shins, yellow skins, large cockscombs, and wide chests. The commodity chickens can be sold at the age of 63-65 days, the average weight of the female chickens is 1.6-1.65 Kg, the average weight of the male chickens is 1.8-1.85 Kg, the average uniformity can reach more than 96%; the dressing percentage, the whole net carcass rate, and the chest muscle rate can exceed 85%, 65%, and 18%, and the carcass character has significant advantages.

Description

technical field [0001] The invention relates to a method for cultivating slaughter-type high-quality chilled fresh chicken, which belongs to the field of poultry genetics and breeding. Background technique [0002] In recent years, major epidemic events (such as bird flu) have expanded from simply causing losses in the breeding industry to affecting public safety and health. From the experience of developed countries such as Europe and the United States, it is an inevitable trend to ban live poultry trading and cold chicken sales. Due to special eating habits, my country's high-quality chicken breeding has long focused on phenotypic traits such as feather color, skin color, and shank color, as well as meat quality selection, and did not pay much attention to carcass traits, resulting in most commercial carcasses on the market having high bone sensitivity , Loose body structure, rough skin appearance and other shortcomings, not suitable for cold fresh chicken sales. Therefore...

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