A kind of breeding method of house-feeding sheep female parent strain

A breeding method and sheep technology, applied in the field of breeding new breeds of sheep for meat, can solve the problems of low lambing rate, insufficient rib opening, poor body shape for meat, etc., and achieve strong roughage resistance, strong adaptability and fertility high effect

Active Publication Date: 2021-11-23
LANZHOU UNIVERSITY
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Problems solved by technology

Hu sheep were introduced from Jiangsu and Zhejiang to my country's Henan, Gansu, Hebei, Shandong, Shanxi, Inner Mongolia, Xinjiang and other places and have achieved good results, but there are also shortcomings, such as poor meat shape and insufficient ribs.
The purebred Dorper sheep breed has good meat quality, but the lambing rate is low

Method used

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  • A kind of breeding method of house-feeding sheep female parent strain

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Embodiment 1

[0026] Embodiment 1 hybridization technical route

[0027] The cultivation of new strains mainly goes through the following stages. The technical route for cultivating the new strain is as follows: figure 1 shown.

[0028] 1. Selection and flocking of basic flocks.

[0029] METHODS: A combination of phenotypic selection and performance assays.

[0030] Selection criteria for Hu sheep ewes: According to the requirements of the technical route, choose Hu sheep with long and narrow head, no horns, raised nose bridge, large protruding eyes, large drooping ears, slender neck, narrow chest, straight back, and slender limbs. The tail is large and oblate, with the tip of the tail upturned. Adult sheep weigh more than 55kg. The whole body of white ewes forms the basic ewe flock, with a total of 800 ewes.

[0031] Selection criteria for South African Merino rams for meat: no horns, large body, wide and deep chest, straight back and waist, plump muscles, and well-developed hindquarte...

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Abstract

The invention discloses a method for cultivating female parental strains of house-feeding sheep, using three breeds of Hu sheep, South African meat Merino sheep and Dorper sheep for cross-breeding, and cultivating sheep suitable for house-feeding in agricultural areas in Northwest China. A new female parent line of high-quality meat sheep. The new breed of sheep contains the high-quality meat properties of the world-renowned sheep breeds South African Merino sheep and Dorper sheep, and also has the high reproductive performance of Hu sheep. Both male and female sheep have no horns, strong adaptability, large physique, fast growth and development, high meat production rate, good meat quality, and outstanding meat performance. The adult weight of rams is over 120kg, and ewes are over 75kg. The ewes have good lactation performance, high fecundity, and the lambing rate is over 200%.

Description

technical field [0001] The invention belongs to the technical field of animal reproduction and breeding, and mainly relates to a method for cultivating new strains of meat sheep. Background technique [0002] The South African Meat Merino sheep is a fine-wool sheep for both meat and wool that was introduced by the South African Ministry of Agriculture in 1932 for a breeding project by introducing German Meat Merino sheep through continuous selection of its wool quality and body shape. This breed of sheep has a large body, early maturity, wide and deep chest, straight back and waist, plump muscles, and well-developed hindquarters. Both male and female sheep have no horns. Adult rams weigh 100-135kg, and adult ewes weigh 70-85kg. Under normal feeding and management conditions, the lambing rate is 130% to 160%, the motherhood is strong, and the lactation ability is good. Under grazing conditions, the average weight of 100-day-old lambs reached 35.0kg, and under intensive feed...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K67/02
CPCA01K67/02
Inventor 李发弟王玉琴王维民李万宏乐祥鹏张小雪马友记翁秀秀罗海玲张志杰谭建华
Owner LANZHOU UNIVERSITY
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