Cultivation method for quaternionic breeding synthesis of meat-egg dual-purpose Jinkun sheldrake commercial line

Abstract

The invention discloses a cultivation method for quaternionic breeding synthesis of a meat-egg dual-purpose Jinkun sheldrake commercial line. The method mainly comprises: selecting cherry valley ducks, Kunshan sheldrakes, Togel ducks and Jinding ducks to construct basic populations of a Y line, a K line, a D line and a J line respectively; breeding Yingkun ducks through hybridization of male cherry valley ducks and female Kunshan sheldrakes, and conducting breeding of a Yingkun duck YK synthesis line with a quick growth rate and a large size; breeding Dijin ducks through hybridization of maleTogel ducks and female Jinding ducks, and conducting breeding of a Dijin duck DJ synthesis line with a good laying rate and a good whole eviscerated rate; and breeding high-quality commercial ducks ofthe quaternionic breeding commercial line through hybridization of male ducks of the parental Yingkun duck YK synthesis line and female ducks of the parental Dijin duck DJ synthesis line, wherein thecommercial ducks are called as the Jinkun sheldrake commercial line. The Jinkun sheldrake commercial line bred with the method has tender and fragrant meat quality, feather of the female ducks is sparrow feather, an annular egg yield is over 216, a per egg weight is over 80 g, the weight of each 56-day-age commercial dug is over 2.5 kg, the whole eviscerated rate is over 75.4%, a chest muscle rate is over 13.2%, and a feed conversion ratio is lower than 2.8:1.

Description

technical field [0001] The invention relates to a method for cultivating a four-element cross-synthesized golden kun shelduck mating line with both meat and egg functions. Background technique [0002] my country is a big duck raising country, and the amount of meat ducks slaughtered in my country accounts for more than 70% of the world's total. In the northern part of my country, the meat duck breeding is mainly based on large-scale meat ducks such as white-feathered cherry valley ducks, which are produced in the form of intensive farming; while in most traditional waterfowl production areas in the south, consumers generally like sparrow feather ducks (referred to as Shelduck), traditional duck products such as salted duck and stewed duck are all produced with shelduck as raw material. There are abundant germplasm resources of shelduck ducks in my country, which are mainly divided into shelduck ducks for meat and eggs and shelduck ducks for eggs. Among them, shelduck ducks ...

AI Technical Summary

Problems solved by technology

[0004]If simple and random hybridization is adopted, the heterosis of various duck breeds cannot be well utilized, and the problem of insufficient production performance of the duck breeds cannot be solved, and the feathers of the hybrid offspring Severe color separation and uneven growth speed of offspring

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