为进行胎儿生理学研究而对绵羊进行的控制性繁殖。
Controlled breeding of sheep for studies in fetal physiology.
作者信息
Love J A
出版信息
Lab Anim Sci. 1978 Oct;28(5):611-4.
PMID:723224
Abstract
A supply of fetal sheep of known gestational age was ensured after synchronizing estrus in the ewes, by means of an intravaginal pessary impregnated with a progestagen. Estrus occurred approximately 2 days after the pessary was removed. Conception rates at different times of the year and for a period of 4 years were described.
摘要
通过在母羊体内放置含有孕激素的阴道栓来同步发情，确保获得已知胎龄的胎羊供应。取出阴道栓后约2天出现发情。描述了一年中不同时间以及4年期间的受孕率。
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