Acknowledgement
Supported by : 교육부
Korean Journal of Veterinary Research (대한수의학회지)
- Volume 37 Issue 4
- /
- Pages.917-924
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- 1997
- /
- 2466-1384(pISSN)
- /
- 2466-1392(eISSN)
Transvaginal ultrasound-guided ovum pick-up in cattle I. Effects of estrus cycle, season and bST treatment on ovum pick-up in cattle
초음파유도에 의한 소 난포란의 채취에 관한 연구 I. 발정주기, 계절 및 bST처치 영향에 관하여
-
Lee, Byeong-chun
(College of Veterinary Medicine, Seoul National University)
;
- Yoon, Ki-young (College of Veterinary Medicine, Seoul National University) ;
- Kim, Hyun-il (Cheil Chem. Co.) ;
- Roh, Sang-ho (College of Veterinary Medicine, Seoul National University) ;
- Lee, Kang-nam (College of Veterinary Medicine, Seoul National University) ;
- Hwang, Woo-suk (College of Veterinary Medicine, Seoul National University)
-
이병천
(서울대학교 수의과대학)
;
- 윤기영 (서울대학교 수의과대학) ;
- 김현일 (제일화학) ;
- 노상호 (서울대학교 수의과대학) ;
- 이강남 (서울대학교 수의과대학) ;
- 황우석 (서울대학교 수의과대학)
- Received : 1997.11.20
- Published : 1997.12.25
Abstract
Estrus cycle of cow, season and follicldar stimulating treatment, having an effect on the number of follicle, are investigated for the oocyte recovery rate in ovum pick-up(OPU). The number of follicle aspirated and oocyte collected on the different days of estrus cycle(D 4~5, D 9~10 and D 14~15) were not significantly different among the groups. The higher number of viable oocytes were produced on Jan-May(79.0%) than Jun-Aug(33.3%) by OPU in cow. The number of follicle and aspirated oocyte in cows treated FSH or PMSG combined with bovine somatotropin(bST) were 1.2~1.5 times higher than in cows treated alone follicular stimulating hormone(FSH) or pregnant mare serum gonadotropin(PMSG). In conclusion, OPU can be repeatedly practiced 2 or 3 times in an estrus cycle. In addition, the high environmental temperature is not good for ovarian function of cow and the bST co-treatment with FSH or PMSG is increasing the number of aspiratable follicle.