Ho H, Wilson J R
J Reprod Fertil. 1980 May;59(1):57-61. doi: 10.1530/jrf.0.0590057.
Immature female mice of the SWR/J and C3H/Ibg strains pretreated with PMSG showed higher incidence of ovulation when exposed to males of the same strain than did those kept isolated after weaning. Females of the C57BL/6Ibg strain were not affected. The numbers of eggs ovulated were also greater in SWR and C3H females than in the C57 females. When SWR/J females were killed after exposure to males for 2, 4 or 6 h, there was a 6-fold increase in LH levels at 6 h compared to values in isolated controls. It is suggested that adult male mice of some strains provide a stimulus which promotes release of LH in the immature female.
用孕马血清促性腺激素(PMSG)预处理的SWR/J和C3H/Ibg品系未成熟雌性小鼠,与断奶后单独饲养的小鼠相比,在接触同品系雄性时排卵发生率更高。C57BL/6Ibg品系的雌性不受影响。SWR和C3H雌性小鼠排出的卵子数量也比C57雌性小鼠多。当SWR/J雌性小鼠在接触雄性2、4或6小时后处死时,与单独饲养的对照组相比,6小时时促黄体生成素(LH)水平增加了6倍。提示某些品系的成年雄性小鼠提供了一种刺激,可促进未成熟雌性小鼠促黄体生成素的释放。