Dual-purpose sheep new strain cultivation method

Abstract

The invention mainly relates to a dual-purpose sheep new strain cultivation method. The method includes the steps that grading crossing is conducted by taking a small tailed han sheep as a female parent and an eastfrierian sheep as a male parent, and a dual-purpose sheep new strain is cultivated through optimization combination and crossing fixation. According to the dual-purpose sheep new strain cultivation method, the cultivated dual-purpose sheep new strain is strong in reproductive performance and good in milk production performance, the lambing percentage is more than 210%, in terms of a table purpose, the figure of the new strain sheep is bettern than that of the small tailed han sheep, the meat performance is good, the feed price is high, the average weight of female lambs weaned in the third mouth can reach 30kg, a one-year-old female sheep is 50kg weight, and an adult female sheep is 60kg weight. Compared with the small tailed han sheep, the new strain sheep has the advantages that in terms of the table purpose, the figure is improved, and the milk production performance is improved. Compared with the eastfrierian sheep, the new strain sheep has the advantages that the reproductive performance is improved, the adaptation is enhanced, the new strain sheep is suitable for development and production, and the economic benefit of sheep farming is remarkably improved.

Description

Technical field [0001] The invention belongs to the technical field of animal breeding, and mainly relates to a method for cultivating a new sheep line for both meat and milk. Background technique [0002] Small-tailed Han sheep are mainly distributed in southwestern Shandong Province, Xinxiang and Kaifeng, Henan, southern, eastern and northeastern Hebei, Anhui and northern Jiangsu. In Shandong Province, the central production areas are mainly distributed in Liangshan, Juye, Jiaxiang, Dongping, Wenshang and other counties, which are well-known local varieties in my country. Small-tailed Han sheep has a strong body, tall body, long limbs, and a slightly square side view; a raised nose, large drooping ears, a ram with a large head and a thick neck, with developed helicity and big horns; an ewe with a long head and a small neck, and most have horns , Different shapes, such as sickle-shaped, antler-shaped, ginger bud-shaped, etc., a few have no horns; developed forequarters, wid...

AI Technical Summary

Problems solved by technology

Small-tailed Han sheep is a world-recognized variety for meat with multiple births, but in actual breeding, often due to multiple births, the growth and development of the ewes are often hindered or the lambs die due to insufficient milk.