Hybrid matching method of red and pink shell eggs laid by red-feather chickens

Abstract

The invention relates to a hybrid matching method of red and pink shell eggs laid by red-feather chickens. The method includes the steps: S1 taking Rhode Island red roosters and Rhode Island red hensas a male parent paternal line and a male parent maternal line to breed male parent Rhode Island Red roosters; S2 taking Rhode Island white roosters and white Leghorn hens as a female parent paternalline and a female parent maternal line to breed male parents; S3 breeding commercial generation laying hens by the aid of the male parent Rhode Island Red roosters and female parent hens with specklepatterns to obtain new varieties of the red and pink shell eggs. Automatic sexing is realized according to feather colors, red feather indicates the hens, and non-red feather indicates the roosters. The eggshell color of the commercial generation laying hens is red and pink, the feather is red, and the gap of Chinese laying hen variety types can be filled in. Moreover, as the eggshell color is between a brown shell egg and a pink shell egg, eggshell color types of domestic laying hens are further enriched, market requirements are met, and the method has a wide application prospect.

Description

technical field [0001] The invention relates to the technical field of matching breeding of new breeds of laying hens, in particular to a hybrid matching method for red-feathered chickens to produce pink-pink shell eggs. Background technique [0002] Affected by traditional consumption habits, the egg consumption of urban and rural residents in China is mainly fresh eggs, and the eggshell color of eggs is a key concern of consumers. In recent years, the proportion of powder-shell eggs in the market has continued to rise, approaching 40%. At present, high-yielding commercial layers that produce powder-shell eggs are mainly produced by orthogonal or inverse mating of brown-shell and white-shell hens. The eggshell color is between brown and white (the average value of L value in the whole process around 80). With the increase in the market demand for branded eggs, consumers' preference for eggs with red-pink shells has been increasing year by year. The eggshells are darker th...

AI Technical Summary

Problems solved by technology

[0003] At the same time, red-feathered layer hens (commonly known as old hens) have the advantages of easy sale and high price, and the consumer market also favors them. Therefore, this breed of layer hens is favored by breeders. However, there is a lack of such red-feather chickens in the market The variety that produces pink-pink eggs, and the eggshell color heritability of laying hens is medium, the breeding progress is slow, and the effect is not good; therefore, there is an urgent need for a method to guide the cultivation of new varieties of red-feathered chickens that produce red-pink eggs

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