Cultivation method of high-yield native laying chicken

Abstract

The invention relates to a poultry breeding technology, in particular to a cultivation method of high-yield native laying chicken. The cultivation method comprises the following steps of: F-series cultivation, backcrossing royal chicken with the synthesis series of parental royal chicken and parental Loman laying chicken, obtaining an underlying group strain containing 75 percent of royal chicken consanguinity, and then carrying out continuous four-generation selective breeding; M-strain breeding cultivation: carrying out cross breeding on the parental royal chicken and the parental Loman laying chicken to obtain an underlying group strain containing 50 percent of the royal chicken consanguinity, and then carrying out continuous four-generation selective breeding; producing commercial generation in matching strains: by taking F strains as parental generation male parent and M strains as parental generation female parent, carrying out sex determination on filial generation by adopting an anal swelling method, wherein the female chicken are commercial-generation laying chicken. The cultivation method can cultivate new species (matching strains) of native laying chicken with high egg yield and excellent egg quality, the egg yield of one commercial chicken after entering into a pheasantry for 72 weeks reaches more than 235 and is improved by 50 percent compared with the egg yield of pure native laying chicken; and the commercial eggs have same appearance quality, protein quality and flavor characteristics with native eggs.

Description

【Technical field】 [0001] The invention relates to poultry breeding technology, in particular to a method for cultivating high-yield soil breed layer hens. 【Background technique】 [0002] Compared with eggs produced by foreign high-yield laying hen breeds (commonly known as "foreign eggs"), native eggs or imitation native eggs containing the blood of local chicken breeds are very popular among Chinese consumers for their beautiful appearance and excellent quality. With the rapid improvement of the living standards of urban and rural residents in our country, consumers have higher and higher requirements for egg quality, and breeding companies and farmers have an urgent demand for high-yielding soil-breed layer breeds. At present, most laying hen production enterprises use local chicken breeds to directly crossbreed with foreign high-yielding laying hen female parents, and the offspring are raised as local commercial laying hens, and the egg production performance has been gre...

AI Technical Summary

Problems solved by technology

However, this kind of direct hybrid seed production has the following disadvantages: (1) It is impossible to select and breed the female parent, so the task of breeding the matching line can only be concentrated on the male line, and the progress of breeding is limited; (2) The size of commercial laying hens Too large lead to an average egg weight of 50-54g, especially after the age of 45 weeks, the egg weight is more than 55g, exceeding the weight standard of native eggs, which is not conducive to brand sales; (3) Improper selection of male parent species will affect eggshell (4) The body weight and egg weight uniformity of commercial laying hens are poor, and the products are not neat

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