Bos frontalis and bos indicus and bostaurus inter-species distant hybridization method

A distant hybridization, cattle technology, applied in the field of hybridization, can solve the problems of slow growth rate, low individual product rate, small size of cattle, etc., and achieve the effect of improving production performance, good reproductive performance, and good production performance.

Inactive Publication Date: 2016-05-04
云南省草地动物科学研究院 +1
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Problems solved by technology

On the one hand, the population of large-breed cattle in my country is very limited. In addition, the systematic research and application of cross-breeding utilization of large-breed cattle, cattle, and zebu is lagging behind. The excellent genetic resources of purebre

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[0015] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below.

[0016] The method of interspecies distant hybridization between large-fronted cattle and zebu and yellow cattle in the embodiment of the present invention is characterized in that it comprises the following steps:

[0017] (1) Selection of hybrid parents: male parent: 4-8 years old, healthy, genetically stable, excellent large bull bull or excellent bull’s frozen semen; female parent: 3-10 years old, healthy, Zebu breeds with stable genetic performance, obvious appearance characteristics, normal sexual cycle and reproductive function, and moderate body condition, such as Brahman cows and Yunnan yellow cattle cows;

[0018] (2) Selection of natural estrus cows and simultaneous estrus treatment of cows: selection of natural estrus cows: observe and record the estrus time and estrus performance of the cows to dete...

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Abstract

The embodiment of the invention provides a bos frontalis and bos indicus and bostaurus inter-species distant hybridization method. The method comprises the steps of cross parent selection, cow estrus synchronization treatment, hybridization method, pregnancy check, growth performance of cross-bred cattles, and karyotype and paternity testing method. The stress resistance of inter-species hybrid of cultivated bos frontalis and Brahman and bostaurus is high, production performance is good, meat quality is good, and reproductive performance of cows is good, while bulls are sterile. The scientific basis is provided for reasonable utilization and crossbreeding of local fine breed bos frontalis, bos indicus and bostaurus in China.

Description

technical field [0001] The invention relates to the field of hybridization methods, in particular to a method for interspecies distant hybridization of large calf, zebu, and yellow cattle. Background technique [0002] Big cattle ( Bosfrontalis ), whose English name is mithun or gayal, is a semi-wild rare breed of cattle that has not been artificially cultivated, mainly distributed in India, Myanmar, Bangladesh and China. In my country, the large cattle are only distributed in the mountainous areas of the Dulong River and Nujiang River Basin in Yunnan Province, so they are also called Dulong cattle. Chromosome 2n=58 of large cattle, between Zebu ( Bosindicus ),cattle( Bostaurus ) between 2n=60 and 2n=56 of Yunnan bison. It is considered to be an independent species in the genus Bovis. It has strong stress resistance, good reproductive performance, long reproductive life, typical meat shape and good meat production performance. It is a precious beef cattle germplasm res...

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Application Information

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IPC IPC(8): A01K67/02
CPCA01K67/02
Inventor 和占星张继才亏开兴王安奎黄必志金显栋刘建勇
Owner 云南省草地动物科学研究院
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