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Morphological changes of female reproductive organs of Japanese monkeys with reproductive conditions |
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| Authors: | Shin-ichi Hayama Shinji Kamiya Hideo Nigi |
| Institution: | (1) Present address: Division of Wild Animal Medicine, Nippon Veterinary and Animal Science University, 1-7-1 Kyonan-cho, Musashino, 180 Tokyo, Japan;(2) Present address: Division of Veterinary Anatomy, Nippon Veterinary and Animal Science University, 1-7-1 Kyonan-cho, Musashino, 180 Tokyo, Japan;(3) Present address: Department of Human Sciences, Osaka University, Yamada-oka, Suita, 565 Osaka, Japan |
| Abstract: | Macroscopic and histological changes were examined on the female reproductive organs of Japanese monkeys (Macaca fuscata) with varying reproductive status in enclosed and provisioned troops. The weight and size of reproductive organs are described. The size of uterus declined in 2–3 months after parturition. The number of parturition was roughly estimated by degrees of sclerosis in myometrial vessels. The nipple length of parous animals was longer than that of nulliparous ones. The bilateral difference in the length (more than 3 mm) between nipples indicated the experience of nursing. Interpreting ovaries on the basis of macroscopic examination alone was less precise. The present results suggested that the female sexual maturity and the experience of nursing can be estimated by the measurement of reproductive organs in the Japanese monkey. |
| Keywords: | Japanese monkeys Ovary Uterus Nipple Measurements |
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