Korean Journal of Veterinary Research 1997;37(4):917-924.
Transvaginal ultrasound-guided ovum pick-up in cattle I. Effects of estrus cycle, season and bST treatment on ovum pick-up in cattle
Byeong-chun Lee1, Ki-young Yoon1, Hyun-il Kim2, Sang-ho Roh1, Kang-nam Lee1, Woo-suk Hwang1
1College of Veterinary Medicine, Seoul National University
2Cheil Chem. Co.
초음파유도에 의한 소 난포란의 채취에 관한 연구 I. 발정주기, 계절 및 bST처치 영향에 관하여
이병천1, 윤기영1, 김현일2, 노상호1, 이강남1, 황우석1
1서울대학교 수의과대학
2제일화학
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.
Key Words: ovum pick-up, bovine somatotropin, bovine, embryo
TOOLS
METRICS Graph View
  • 496 View
  • 3 Download
Related articles


About
Policy
Browse articles
For contributors
Editorial Office
#401-1, 85 Bldg., College of Veterinary Medicine, Seoul National University
1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
Tel: +82-2-880-1229    Fax: +82-2-878-9762    E-mail: jvs@ksvs.or.kr                

Copyright © 2024 by The Korean Society of Veterinary Science.

Developed in M2PI

Close layer
prev next