摘要
报道了 １９９６～ １９９８年贵州大方县高山姬鼠的种群繁殖特征。共解剖标本５２０ 只，雌鼠２６４ 只，雄鼠２５６ 只。主要繁殖期在 ４～９月，研究期间平均怀孕率为 １８．６２％，平均胎仔数为 ６．０３ 只，繁殖指数０．６８４６，每年４～５月和８～９月为两次妊娠高峰。雄鼠睾丸下降率季节变化与雌鼠怀孕率季节变化是同步变动趋势。
The reproduction of population of Apodemus chevieri in Dafang county of Guizhou province was investigated during 1996～1998. A total of 520 specimens were collected and dissected, among which 264 were female and 256 male. In main propagating season, the mean pregnancy rate, litter size and reproductive index were 18 .62%, 6. 03 and 0. 6846, respectively. The fluctuations of the rate of testis in serotum were identical with the rate of female pregnancy.
出处
《西南农业学报》
CSCD
北大核心
2000年第3期58-61,共4页
Southwest China Journal of Agricultural Sciences
基金
贵州省农田鼠害研究协作组课题!<高山姬鼠种群生物学特性研究>项目内容之一
