Driancourt M A
J Reprod Fertil. 1987 May;80(1):207-12. doi: 10.1530/jrf.0.0800207.
In Exp. 1, ovulation rate was measured in three groups of Romanov ewes given two injections of 600 i.u. PMSG 3 weeks apart with the ewes intact (Group I, N = 8), a similar treatment with the ewes intact at the first injection and unilaterally ovariectomized at the second (Group II, N = 8), or unstimulated ewes which were hemispayed at the same time as Group II ewes (Group III, N = 6). In Exp. 2, the follicular population of one ovary was correlated with the number of ovulations induced by 600 i.u. PMSG in the contralateral ovary (10 Romanov ewes). From 8.4 +/- 1.8 (Group I) and 8.2 +/- 3.3 (Group II) CL at the first injection, PMSG-induced ovulation rate at the second injection decreased to 3.9 +/- 1.8 and 3.7 +/- 1.2 in Groups I and II respectively, a value similar for ewes with 1 or 2 ovaries. Furthermore, despite no major changes in the number of antral follicles after the first injection, there was no correlation (r = -0.09) between the response to the two successive injections in intact ewes. Comparison of the ovarian status of the ovary removed before the PMSG injection (Group II ewes of Exp. 1, ewes of Exp. 2) to the number of CL found in the remaining ovary demonstrated that PMSG-induced ovulation rate was not correlated with the overall antral follicle population (r = 0.62 in Exp. 1, r = 0.49 in Exp. 2).(ABSTRACT TRUNCATED AT 250 WORDS)
在实验1中，对三组罗曼诺夫母羊的排卵率进行了测定。第一组（n = 8），母羊保持完整，每隔3周注射两次600国际单位的孕马血清促性腺激素（PMSG）；第二组（n = 8），母羊处理方式与第一组相似，但第一次注射时保持完整，第二次注射时单侧卵巢切除；第三组（n = 6），为未受刺激的母羊，与第二组母羊同时进行半卵巢切除。在实验2中，对10只罗曼诺夫母羊一侧卵巢的卵泡数量与对侧卵巢中600国际单位PMSG诱导的排卵数量进行了相关性分析。第一次注射时，第一组和第二组分别有8.4±1.8个和8.2±3.3个黄体（CL），第二次注射时，PMSG诱导的排卵率在第一组和第二组分别降至3.9±1.8和3.7±1.2，单卵巢和双卵巢母羊的这一数值相似。此外，尽管第一次注射后窦状卵泡数量没有重大变化，但完整母羊对连续两次注射的反应之间没有相关性（r = -0.09）。将PMSG注射前切除的卵巢（实验1的第二组母羊、实验2的母羊）的卵巢状态与剩余卵巢中发现的黄体数量进行比较，结果表明，PMSG诱导的排卵率与总体窦状卵泡数量无关（实验1中r = 0.62，实验2中r = 0.49）。（摘要截选至250词）
