Breeding method of complete set line of local characteristic laying hens capable of realizing autosexing based on barred feather

Abstract

The invention discloses a breeding method for a matching line of layer hens with horizontal spotted feather self-separating sexes and local characteristics. Through direct introduction or hybrid seed production, the male line BH01, HS1, HS2 and the female line LH basic group are constructed, and the family breeding method and positive and negative Repeated selection method was used for purebred breeding to improve the meat production performance of the male line and the egg production of the female line; through the determination of the combining ability of growth and development, egg production performance and slaughter performance, the matching combinations BH01×(HS1×LH) and BH01×(HS2×LH) were determined. ), to produce high-quality roosters and local specialty egg hens. According to the breeding method of the local characteristic laying hens with cross-spotted feather self-sexing of the present invention, it is possible to obtain local characteristic laying hens with native chicken body appearance, complete disease purification, suitable market age, and cross-spotted self-sexing; The invention adopts the method of family breeding and positive and negative repeated selection, which can accurately select new strains of laying hens with local characteristics with consistent appearance and stable performance, reaching the domestic leading level.

Description

technical field [0001] The invention belongs to the field of poultry genetic breeding methods, and in particular relates to a breeding method for matching lines of laying hens with horizontal stripe feather self-separation of sexes and local characteristics. Background technique [0002] my country has abundant poultry genetic resources. There are 138 local poultry breeds, including 85 local chicken breeds. With the development of the economy, consumers have further increased their requirements for egg quality. Local characteristic laying hens make use of the blood of local breeds. After systematic selection and cultivation, the commercial generation still has the appearance characteristics of local breeds. high. Therefore, the market share of layer chickens with local characteristics has increased year by year, which has brought unprecedented development opportunities for the development of the layer industry with local characteristics. However, there are very few types ...

AI Technical Summary

Problems solved by technology

However, there are very few types of layer chickens with local characteristics in the market in Southwest my country. The main preference is for hemp-colored or pure yellow, green-legged breeds with good physical characteristics and excellent production performance, which cannot meet the needs of production and consumption.

In addition, at present, the method of turning the anus is mostly used for the identification of male and female chickens. The disadvantages of this method are mainly that it causes cross-infection of infectious diseases, and it causes greater stress to animals and high labor costs.

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