Breeding method for low-abdominal-fat high-quality chickens

Abstract

The invention provides a breeding method for low-abdominal-fat high-quality chickens. According to the invention, the amount of deposited fat is speculated according to the richness of intestinal flora in chicken manure, a basic chicken flock is established by taking the diversity of intestinal microorganisms as a selection index for predicting abdominal fat, and breeding chicken individuals are eliminated and selected on the basis of the basic chicken flock; a Chao1 index and an ACE index are used as biomarkers for predicting and identifying abdominal fat deposition of chickens, and stable and reliable prediction and identification of the deposition amount of a living body fat and the deposition range of abdominal fat are realized; and the microbial diversity is acquired to serve as an index for predicting abdominal fat, so prediction and identification can be achieved, invasive sampling modes such as blood sampling needed in a traditional molecular marking method can be effectively avoided, and therefore, the problems of wound infections, stress and production performance reduction caused by blood sampling of chickens are avoided. The breeding method can also solve the problems of large errors, wasting of time and labor, complex operation, difficulty in popularization and low efficiency in traditional low-abdominal-fat breeding method.

Description

technical field [0001] The invention relates to the technical field of poultry breeding, in particular to a method for breeding high-quality low-abdominal fat chickens. Background technique [0002] Excessive deposition of body fat (especially abdominal fat) in broiler chickens has been perplexing broiler breeders around the world, and chickens generally have the problem of excessive abdominal fat deposition. Excessive abdominal fat reduces feed conversion efficiency on the one hand and improves quality chicken Feeding costs, excessive fat discards also cause waste and pollute the environment; on the other hand, excessive abdominal fat deposition will reduce consumers' recognition of the quality of high-quality chickens, affecting prices and sales. In addition, over-fertilization of chickens will seriously affect the egg production rate, fertilization rate and hatchability rate, increase the death rate during the egg production period, and affect the reproductive performance...

AI Technical Summary

Problems solved by technology

Another example is that the patent No. CN109924166A relates to a high-quality chicken breeding method with low abdominal fat rate, but it is generally impossible to quickly and effectively infer the abdominal fat deposition traits of high-quality chickens

[0004] In summary, in the field of poultry breeding technology, especially in the field of live fat deposition identification, there are still many practical problems that need to be dealt with in practical applications, and no specific solutions have been proposed.

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