Breeding method of new breed of high-yield fur sheep

Abstract

The invention provides a breeding method of a new breed of high-yield fur sheep. Taihang fur sheep serve as female parents, and Tan sheep and Hu sheep serve as male parents for three-time grading hybridization and backcross; and the breed of the high-quality fur sheep with 'string patterns' is bred according to two-phase and three-phase phenotypic selection methods and the like. In the breeding method, the productivity and the fur quality of the Taihang fur sheep are improved by using the Hu sheep breed and the Tan sheep breed to be in hybridized and combined with the Taihang fur sheep and comprehensively utilizing the characteristics of high reproductive capacity, large wool yield and good fur quality of the Hu sheep and excellent fur patterns, good warming performance, no easy bonding, compact fur board, light weight and burliness of the Tan sheep on the basis of retaining the advantages of strong adaptability, crude feed resistance, strong disease resistance, easy management and the like of original breeds. Furs skinned from the high-yield fur sheep obtained by adopting the breeding method in the invention and killed at the age of about 30 days have excellent patterns such as the string patterns, big soft patterns and the like; moreover, the high-yield fur sheep have high lambing rate which is improved by 40% compared with the Taihang fur sheep.

Description

technical field [0001] The invention relates to a method for cultivating sheep strains, in particular to a method for cultivating new high-yield fur sheep strains. Background technique [0002] Taihang fur sheep is a breed of sheep with both skin and meat in Henan Province. The main production areas are located in Tangyin County and Xinxiang City, Anyang City along the Beijing-Guangzhou line at the eastern foot of Taihang Mountain. They are concentrated in mountainous and hilly areas. Taihang fur sheep have strong adaptability and fur The quality is good, the physique is medium, and the physique is strong. Most of the rams have spiral horns, and most of the ewes have horns or horn bases. The average weight of one-year-old rams is 45-46 kg, and that of ewes is 37-39 kg; 79% of them are all white in coat color. cm, with excellent wavy and curved hair strands, but mainly thick, soft, and large flowers. The average shearing volume of rams is 0.78-0.8 kg, and the length of wool ...

AI Technical Summary

Problems solved by technology

In the past 30 years, due to the fact that the breeding of the growth direction of fur has not been carried out well, the production, processing and sales of fur have not yet formed a scale, the economic benefits of the fur market have declined, and the purposeless hybridization and breeding of fur has been carried out. The improvement made the characteristics of the fur produced by Taihang fur sheep gradually disappear. At the same time, the number of purebred Taihang fur sheep has dropped sharply. At present, there are only more than 10,000 Taihang fur sheep in the main production area.