한국발생생물학회:학술대회논문집 (Proceedings of the Korean Society of Developmental Biology Conference)
- 한국발생생물학회 2003년도 제3회 국제심포지움 및 학술대회
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- Pages.125-125
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- 2003
Effect of GnRH or Estradiol on Emergence of a New Follicular Wave, Follicular Development and Pregnancy Rate in a CIDR-Based Timed Al Protocol in Holstein Cows
- Kim, Ui-Hyung (College of Veterinary Medicine, Chungbuk National University) ;
- Nam, Hyun-Wok (College of Veterinary Medicine, Chungbuk National University) ;
- Kang, Hyun-Gu (College of Veterinary Medicine, Chungbuk National University) ;
- Kim, Ill-Hwa (College of Veterinary Medicine, Chungbuk National University)
- 발행 : 2003.10.01
초록
The objective of this study was to evaluate the effect of GnRH or estradiol in a CIDR-based timed Al (TAI) protocol on follicular turnover, synchronized ovulation and pregnancy rates in Holstein cows. Cows were treated at random stages of the estrus cycle with an insertion of an intravigal progesterone (1.9 g) device (CIDR, Day 0) and either no other treatment (control group; n=10), injection of 100 ug fertirelin acetate (GnRH group; n=10) or 4 mg estradiol benzoate (estradiol group; n=10). Seven days later devices were removed and an injection of 25 mg