Method for predicating milk yield of small tailed han sheep by virtue of BMPR (bone morphogenetic protein receptor )-1B or PRLR (prolactin receptor) gene SNP (single nucleotide polymorphism) lotus

A technology for small-tailed Han sheep and milk production, applied in the field of animal husbandry, can solve problems such as inability to predict the future or newly born livestock, time-consuming and labor-intensive, etc., achieve good application prospects, improve survival rate, improve survival rate and development speed Effect
CN104087677AActive Publication Date: 2014-10-08新疆维吾尔自治区畜牧科学院中国-澳大利亚绵羊育种研究中心
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
新疆维吾尔自治区畜牧科学院中国-澳大利亚绵羊育种研究中心
Publication Date
2014-10-08

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Abstract

The invention relates to the raise livestock field, and discloses a method for predicating milk yield of small tailed han sheep by virtue of BMPR(bone morphogenetic protein receptor )-1B or PRLR (prolactin receptor) gene SNP (single nucleotide polymorphism) lotus. The method comprises the following steps: extracting a small tailed han sheep genome DNA (deoxyribonucleic acid); amplifying a sequence of SNP lotus-containing BMPR-IB A746G or a sequence of SNP lotus-containing PRLR gene; judging an E2-C34T mutant gene type of the BMPR-IB A746G or PRLR gene. The method disclosed by the invention can be applied to carrying out feeding and management according to difference of milk secretion control gene types, and can be used for improving the milk secretion amount, guaranteeing that a lamb has enough milk intake, improving the survival rate and reducing the breeding economic loss. The method disclosed by the invention provides a molecular-level technical support for predicating and molecularly selecting the milk yield of small tailed han sheep; by applying the method disclosed by the invention, the survival rate and development rate of the lambs are greatly improved, so that better breeding economic benefits are produced, and therefore, the method has good application prospect.
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Description

technical field

[0001] The invention relates to the field of animal husbandry, in particular to a method for predicting the lactation volume of small-tailed Han sheep by SNP sites of BMPR-1B or PRLR genes. Background technique

[0002] Small-tailed Han sheep is a breed of sheep with both meat and coat. It grows fast, matures early, has strong fecundity, stable performance genetics, and strong adaptability. It matures early, has multiple births, and has multiple lambs: it grows fast, has a large body and more meat, and has good meat quality: Small-tailed Han sheep 4 It can be fattened and slaughtered at the age of one month, and the annual slaughter rate is more than 400%. The weight can reach 50 kg at the age of 6 months, 100 kg at the age of one year, and 130-190 kg for adult sheep. The slaughter rate of one-year-old fattening sheep is 55.6%, and the net meat rate is 45.89%.

[0003] Small-tailed Han sheep have very strong fecundity, and they can produce three times in two...

Claims

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