Nicoll M E, Racey P A
J Reprod Fertil. 1985 May;74(1):47-55. doi: 10.1530/jrf.0.0740047.
Reproduction in female tenrecs was studied on Praslin Island (4 degrees 20'S, 55 degrees 45'E) in the Seychelles from November 1977 to September 1980. Dissection and histological examination of reproductive tracts revealed that each ovary is encapsulated in a bursa. Polyovular follicles were abundant and contained up to 5 oocytes. The occurrence of more implanted fetuses than corpora lutea (CL) indicated successful polyovuly in 25% of pregnancies. No antrum was observed during follicular growth at oestrus, and follicles were relatively small at maturation, reaching a maximum diameter of 570 microns. Ovulation involves a gentle extrusion of the granulosa and ovum into the periovarian space. Spermatozoa were abundant in the female reproductive tract including the periovarian space at oestrus. Spermatozoa penetrated the loosely-packed theca of mature follicles and were present in CL, indicating that intrafollicular fertilization may occur. The relatively small CL formed by eversion, reaching a maximum size after implantation. Fusion of up to four CL occurred in the ovaries of 41% of pregnant females. Polyovulation in the tenrec was confirmed by the occurrence of 10.4 +/- 0.5 (mean +/- s.e.m.) CL and 9.7 +/- 0.5 (mean +/- s.e.m.) implantations. Resorption occurred in 74% of 19 dissectable pregnancies, occurring in both uterine horns in 26% of pregnancies. Coefficients of variation in weights of fetuses in each litter were 10.0-26.8%, with the largest value corresponding to 273% variation in fetus weights. Litter size in the Seychelles tenrecs was smaller than in the same species in Madagascar (17.1 +/- 1.9 implantations) where the tenrec is native.
1977年11月至1980年9月期间，在塞舌尔普拉兰岛（南纬4度20分，东经55度45分）对雌性马岛猬的繁殖情况进行了研究。对生殖道进行解剖和组织学检查发现，每个卵巢都被包裹在一个囊内。多卵卵泡丰富，每个卵泡含有多达5个卵母细胞。着床胎儿比黄体多的情况表明，25%的妊娠发生了成功的多排卵。发情期卵泡生长过程中未观察到卵泡腔，且成熟时卵泡相对较小，最大直径达570微米。排卵时，颗粒细胞和卵子会轻柔地挤入卵巢周围间隙。发情期雌性生殖道包括卵巢周围间隙内精子丰富。精子穿透成熟卵泡疏松排列的卵泡膜并存在于黄体中，表明可能发生卵泡内受精。黄体通过外翻形成，相对较小，着床后达到最大尺寸。41%的怀孕雌性卵巢中出现多达四个黄体融合的情况。马岛猬的多排卵通过黄体数为10.4±0.5（平均值±标准误）和着床数为9.7±0.5（平均值±标准误）得到证实。在19例可解剖的妊娠中，74%发生了吸收，26%的妊娠双侧子宫角均出现吸收。每窝胎儿体重的变异系数为10.0 - 26.8%，最大值对应胎儿体重273%的变异。塞舌尔马岛猬的窝仔数比该物种在原产地亚达加斯加的窝仔数少（17.1±1.9次着床）。
