GROWTH AND DEVELOPMENT OF WILD AND CAPTIVE NILE RATS, ARVICANTHIS-NILOTICUS (RODENTIA, MURIDAE)
GROWTH AND DEVELOPMENT OF WILD AND CAPTIVE NILE RATS, ARVICANTHIS-NILOTICUS (RODENTIA, MURIDAE)
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DOI：
10.1111/j.1365-2028.1985.tb00720.x
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发表时间：
1985-01-01
影响因子：
1
通讯作者：
MONRO, RH
中科院分区：
文献类型：
--
作者：
DELANY, MJ;MONRO, RH
在实验室研究了尼罗罗非鱼的繁殖和产后发育。妊娠期22-24天，产后发情。平均产仔数为 3.7 .+-。 1.0。与其他非洲鼠科动物相比，幼年动物发育迅速，并在 36-52 天达到性成熟。将实验室条件下动物的生长与肯尼亚野生Arvicanthis 的生长进行了比较。实验室饲养的幼仔增重可达 40 g mo.-1；野外记录的最大重量为 30 g mo.-1。这一比率在旱季期间有所降低，成虫在那时几乎停止生长。自然生长曲线和实验室生长曲线的比较显示了将实验室获得的数据应用于野生种群的局限性。
Reproduction and post-natal development of A. niloticus was studied in the laboratory. The gestation period was 22-24 days with a post-partum estrus. Mean litter size was 3.7 .+-. 1.0. Young animals developed rapidly relative to other African murids and attained sexual maturity at 36-52 days. The growth of animals under laboratory conditions was compared with that of wild Arvicanthis in Kenya. Laboratory reared young gained up to 40 g mo.-1; the maximum recorded in the wild was 30 g mo.-1. This rate was reduced during the dry season and adults virtually ceased growing at that time. A comparison of natural and laboratory growth curves showed the limitations of applying data obtained in the laboratory to wild populations.