Pregnancy Rate and Conception Date in a Wild Population of Japanese Monkeys
Pregnancy Rate and Conception Date in a Wild Population of Japanese Monkeys
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DOI：
10.1292/jvms.10-0420
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发表时间：
2011-06-01
影响因子：
1.2
通讯作者：
Konno, Fumiharu
中科院分区：
文献类型：
--
作者：
Hayama, Shin-ichi;Nakiri, Sachie;Konno, Fumiharu
这项研究首次确定了特定个体的受孕日期，并估计了日本猴子野生种群的怀孕率。37例胎儿的胚胎年龄估计的受孕日期分布在9月17日至1月23日的128天内，平均受孕日期为11月19日（SD=29.2天）。各组平均受胎日期的比较表明，亚成体动物（4 ~ 5岁，12月5日，n=8）的受胎时间明显晚于成体动物(6岁及以上，11月15日，n=29
This study is the first to determine the conception dates of specific individuals and estimate the pregnancy rate of a wild population in Japanese monkeys. The conception dates estimated from the embryonic ages of 37 fetuses were distributed over 128 days between September 17 and January 23, with a mean conception date of November 19 (SD=29.2 days). A comparison of the mean conception dates among age groups showed a significantly delayed conception in the subadult animals (aged 4 to 5 years; December 5, n=8) than in the adult animals (aged 6 or more years; November 15, n=29; P