논문 상세보기
pp.185-190
본 연구는 소에 있어서 다량의 수정란을 생산하여, 고능력의 유전인자를 조기에 확산할 수 있도록, 한우 공란우의 반복 과배란을 유도하여 안정적이고 효율적인 수정란 생산을 목적으로 실시하였으며, 그 결과는 다음과 같다. 1. 한우 경산우 및 미경산우를 4회 반복적으로 과배란 처리하였을 때, 수정란 채란이 가능한 공란우는 였으며, 3회 처리시 다소 낮아, 약간의 유의차가 인정되었다(P<0.05). 2. 한우 경산우 및 미경산우를 4회 반복적으로 과배란 처리하
This study was performed to investigate the effects of multiple superovulation and parity on embryo production in Hanwoo cows. Donors were superovulate 4 times months interval and inserted CIDR plus (with the capsule of estradiol benzoate 10mg) on Day 10 from standing heat for 9 days and injected 2.5ml FSH (Antorin R-10) 2 times in a day on 6th day to 10th day from insertion of CIDR and the doses of FSH were decreasing 0.5ml on every 2 times. On 3th day of FSH injection, 25ml were injected i.m. and on 4th day, CIDR was removed. After 2 days from removing CIDR, AI was performed 2 times 12 hour apart with 2 straws of Korean Proved frozen Semen and simultaneously 200ug/ml GnRH was injected and embryos were recovered on 7th day from Al. The response rates of superovulated donors were from 1 to 4 times of superovulation, respectively. There were significant differences among No. of superovulation times (P<0.05). The results of transferable embryos were 3.7, 3.4, 3.4, 5.7 from 1 to 4 times of superovualtion, respectively. There were no differences among No. of superovulation times. The results of transferable embryos were 2.5, 3.0, 5.3, 3.0, 3.4 form heifer, first born to 4 the born, respectively. There were significant differences among the parities of donors (P<0.05). These results suggested that even 4 times of superovulations of Hanwoo donors could be able to recover transferable embryos, it might be used the donors maximally and improved the adaptation of embryo transfer to farms safely.
