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KMID : 1023620060300030225
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Reproductive and Developmental Biology
2006 Volume.30 No. 3 p.225 ~ p.228
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Utilization of Ovulation-Synchronization Method in Dairy Cows
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Hwang Seok-Joo
Park S. B.
Park S. J.
Park Choon-Keun
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Abstract
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This study was undertaken to investigate the effect of ovulation-synchronization(OVSYNCH) method on conception rate after insemination of dairy cattle. The proportion of conception of normal fertility cows(65%) was higher than that in infertility cows(50%) in dairy cows with OVSYNCH treatment. However, there was no significant difference between experimental groups. In another experiment, when the OVSYNCH method was adapted in multiparous dairy cows, the conception rate of experimental group of in milk yield was significantly higher than those in groups of in milk yield(p<0.05). In conception rates by OVSYNCH method in experimental groups with different parity, the group of 1st parity was significantly higher than in 3rd parity group(p<0.05). The results suggest that conception rate by OVSYNCH method was affected by various reproductive conditions in dairy cattle, and OVSYNCH method could be used to increase the conception rate for infertility cows with hormone disorder.
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KEYWORD
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OVSYNCH, Dairy cows, Conception rate, Infertility cows
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