A kind of breeding method of gray feather silky chicken

Abstract

The invention discloses a cultivation method of gray plumage black-bone chicken. The cultivation method includes the steps that a tile-like gray chicken and a Sichuan mountain dark-bone chicken intersect to serve as a male parent and a female parent and are hybridized to obtain A and B, A is backcrossed with the Sichuan mountain dark-bone chicken to obtain B1, B is backcrossed with the tile-like gray chicken to obtain B2, B1 and B2 intersect to serve as a male parent and a female parent and are hybridized to obtain C and D, C and D are hybridized to obtain F1, A and F1 are hybridized to obtain E, and E and F1 are hybridized to obtain F2. Compared with the traditional tile-like gray chicken, the gray plumage black-bone chicken has brighter plumage color and a purer gray plumage degree, the bodily form is increased by 15% or more, the growth period is shortened by 35% or more, the laying rate is increased by 20%, the production cost is reduced, which is beneficial for enlarging the development scale of the gray plumage black-bone chicken, the advantage of high nutrition value of the Sichuan mountain dark-bone chicken is kept, the mouthfeel, flavor and nourishing functions are good, and the effect of nourishment for vitality is achieved; compared with the traditional Sichuan mountain dark-bone chicken, the bodily form is increased by 20% or more, the growth period is shortened by 30% or more, and the survival rate is increased by 10% or more.

Description

technical field

[0001] The invention relates to the field of biotechnology, in particular to a method for breeding gray feather silkies. Background technique

[0002] Tile gray chicken, also known as Anyi chicken, is characterized by gray color. It is a unique and excellent local poultry breed resource formed after long-term natural selection and artificial selection by the people of Anyi. The tile gray chicken not only has gray feathers, but also has the characteristics of "five grays" of gray skin, gray (hair) feet, gray beak and gray crown. It has the advantages of rough feeding resistance, wide adaptability, stress resistance and strong disease resistance of tile-gray chicken. However, tile-gray chicken has the following disadvantages: smaller body size, longer growth cycle, and lower egg production rate. There is a need for improvement.

[0003] On the other hand, Sichuan mountain black-bone chicken is bred from Xingwen local black-bone chicken, which has a history of...

Images