Korean Journal of Animal Reproduction (한국가축번식학회지)
- Volume 10 Issue 2
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- Pages.182-187
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- 1986
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- 1226-5284(pISSN)
Studies on Separation of Highly Motile Sperm, Secondary Sex Ratio and Pregnancy Rate at Artificial Insemination in Bovine
소에 있어서 인공수정시의 임신율, 출생시 성비 및 고활력정자의 분이에 관한 연구
Abstract
As a fundamental study to increase the fertility and to modify the sex ratio in cattle, highly motile sperm were separated by bovine serum albumin gradients. The pregnancy rates of Korean native cow and Holstein cow, and the sex ratio between AI and natural mating were also investigated. The results obtained were as follows. 1. First service pregnancy rate of Korean native cow in artificial insemination was higher than that of Holstein. 2. At secondary sex ratio in artificial insemination and natural mating, male ratio in artifical insemination was slightly higher than that in natural mating. 3. The sperm separated from marketed frozen semen using 6%, 10% and 20% bovine serum albumin showed significantly high value in motility, percent of normal sperm and progressive motility as compared with control sperm.
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