Growth, Development and Reproduction in captive of the Large Japanese Field Mouse, Apodemus speciosus (Rodentia, Muridae)
Growth, Development and Reproduction in captive of the Large Japanese Field Mouse, Apodemus speciosus (Rodentia, Muridae)
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日本大型田鼠Apododemus spiosus（啮齿目，鼠科）圈养的生长、发育和繁殖
DOI：
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发表时间：
1998
影响因子：
0.6
通讯作者：
毛利 孝之
中科院分区：
文献类型：
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作者：
Hong;毛利 孝之
捕捉大型日本田鼠(Apodemus Orosus)，饲养在23℃、L：100光周期为14：100光周期恒定条件下的不锈钢笼中，观察其生长发育和繁殖情况。改变饲养条件和筑巢材料，并在每个笼子中引入密室和转轮装置，首先使该物种能够在圈养条件下繁殖。在我们的繁育群体中，大金丝雀一年四季都在繁殖幼崽。关于雄鱼的性成熟，50日龄观察到精巢下降和精子生成，60日龄左右开始交配，70-80日龄开始活跃繁殖。另一方面，雌性在60-70日龄时，阴道打开，成熟的卵泡细胞出现，雌性开始活跃繁殖。平均产仔数4.29只(n=27)，产仔数3-6只，妊娠期19-21天。体重、头体长、尾长、足长和耳长的每一次增长都存在显著的性别差异。朝鲜黑线姬鼠、日本黑线姬鼠、台湾林鼠和大黑线姬鼠四种比较种的生长速率常数基本一致。
The large Japanese field mice (Apodemus speciosus) were captured and kept in stainless cages under a constant condition at 23°C and 14 L: 100 photoperiod, and the growth, development and reproduction were investigated in this species. Modification of feeding condition and nest materials and introduction of a chamber and a running wheel apparatus into each cage first enabled this species to breed under captivity. In our breeding colony, A. speciosus produced the pups throughout the year. Concerning sexual maturation of the males, the descended testes and spermiogenesis were observed at 50 days old, copulatory behavior was performed at about 60 days old, and active breeding started at 70-80 days old. On the other hand, in the females, the vaginas opened and mature follicle cells appeared at 60-70 days old at which active breeding began in females. The mean litter size was 4.29 (n=27), ranging from 3-6, and the gestation period was 19-21 days in this species. Significant sexual difference were detected in each increase in body weight, head and body length, tail length, foot length and ear length. These growth rate constants were similar to each other among the four compared species that belong to genus Apodemus; the Korean striped field mouse, A. agrarius chejuensis, the small Japanese field mouse, A. argenteus, the Formosan wood mouse, A. semotus and the large Japanese field mouse, A. speciosus.