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Method for breeding polyembryonic mutton sheep by utilizing hybridization of Tibet-Han ewes

A breeding method and ewe technology, which is applied in animal husbandry and other fields, can solve the problems of low multiple birth rate, low individual meat production capacity, slow early growth and development of Tan sheep, etc., and achieve high meat production, fast growth speed, and tender meat Effect

Active Publication Date: 2020-12-15
宁夏宇泊科技有限公司
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  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the problems of low multiple birth rate of Tan sheep, slow early growth and development, and low individual meat production ability of Tan sheep, the present invention proposes a method for breeding multiple-birth mutton sheep by crossbreeding Tanhan ewes, and the multi-birth mutton sheep obtained by breeding through this method Good meat production performance, high meat production, fast growth, high multiple birth rate, fine meat, no smell, and very suitable for the arid environment in Northwest China

Method used

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  • Method for breeding polyembryonic mutton sheep by utilizing hybridization of Tibet-Han ewes
  • Method for breeding polyembryonic mutton sheep by utilizing hybridization of Tibet-Han ewes
  • Method for breeding polyembryonic mutton sheep by utilizing hybridization of Tibet-Han ewes

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Embodiment

[0042] Select and breed 20 qualified purebred Dorper sheep. The age of Dorper sheep is required to be 2-5 years old, with a birth weight of more than 3kg, a year-old weight of more than 80kg, and an adult weight of more than 95kg. No genetic defects, double testes are even and symmetrical, the genetic pedigree is clear and there are more than 1-2 full siblings, the body is white, the head, ears and neck are black, with a strong head, clear eyes, raised nose bridge, head and neck and The forelimbs are relatively developed, the body is long, wide and deep, the ribs are well developed and fully developed, the chest is well developed, the back is strong and thick, the buttocks and legs are plump, the limbs are strong and powerful, and the temper is gentle. The body height is more than 65cm, the body length is more than 110cm, and the bust is more than 90cm.

[0043] Select and breed 200 qualified Tanhan ewes. Tanhan ewes are required to be multiparous ewes aged 2-6 years old, with...

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Abstract

The invention relates to the technical field of ruminant breeding, and discloses a method for breeding polyembryonic mutton sheep by utilizing hybridization of Tibet-Han ewes. The method comprises thefollowing steps that 1) hybridization is carried out to obtain F1-generation Tibet-Han-dorper hybrid sheep with the Tibet-Han ewes as female parents and purebred dorper sheep as male parents; 2) hybridization is carried out to obtain F2-generation Tibet-Han-dorper hybrid sheep with the F1-generation Tibet-Han-dorper hybrid sheep as female parents and the purebred dorper sheep as male parents; and3) the F2-generation Tibet-Han-dorper hybrid sheep obtained in the step 2) are subjected to four-generation transverse mating and fixing to obtain a new strain of the Tibet-Han-dorper polyembryonic mutton sheep. The new target variety (line) of the Tibet-Han-dorper hybrid sheep are obtained through transverse mating and fixing of the F2-generation Tibet-Han-dorper hybrid sheep, so that the obtained new line contains genes with high growth speed, good meat production performance, high meat yield, coarse feeding resistance and high adaptability of the dorper sheep and genes with polyembryony, fine meat quality and good flavor of the Tan-Han ewes.

Description

technical field [0001] The invention belongs to the technical field of ruminant breeding, and in particular relates to a method for breeding multiple-born mutton sheep by using Tanhan ewes. Background technique [0002] Tan sheep is the most famous breed of sheep in Ningxia, and it is also the best livestock breed in the arid zone of central Ningxia. It is an excellent variety with distinctive local characteristics formed after hundreds of years of artificial selection and cultivation under the specific natural environmental conditions of Ningxia. It was included in the national local breeds in 1950, and was included in the "National List of Livestock and Poultry Genetic Resources Protection" by the Ministry of Agriculture in 2006. However, Tan sheep are small in size, slow in early growth and development, low in individual meat production, and low in multiple birth rate, which is extremely unsuitable for industrial development requirements, and the meat production is mainl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/02
CPCA01K67/02
Inventor 王述宇邵云勤杨志光冯登侦康晓龙
Owner 宁夏宇泊科技有限公司
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