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四年监测市区六种鼠,以褐家鼠,黄胸鼠和小家鼠为主,社鼠和黄毛鼠为野外捕获。褐家鼠为优势种,该鼠幼年鼠占全年总数的15.2％,亚成体鼠占20.3％、成体鼠占64.2％。其睾丸下降率随年龄增长明显增加,以老年下降最高(93.7％),为繁殖仔鼠的主要鼠种,解剖观察所见,成年组睾丸明显加重(平均0.589g),睾丸长度在12毫米可见明显下降,提示为该鼠性成熟的界线指标。褐家鼠怀孕率平均每月23.1％,平均胎仔数8.2只,以6至9月最高,1至2月最低,针对季节繁殖特点,掌握捕杀时机,利于提高捕杀效果。
Four years to monitor six urban rats, Rattus norvegicus, Rattus flavipectus and Mus musculus-based, community rats and rodents captured in the wild. Rattus norvegicus was the dominant species, accounting for 15.2% of the whole year, 20.3% of the adult rats and 64.2% of the adult rats. The testicular descent rate increased significantly with age, with the highest decline in elderly (93.7%), the main rat pups for reproduction, anatomical observation showed significantly increased testicular weight in adults (average 0.589g), testicular length of 12 mm visible Significantly decreased, suggesting that the murine sexual maturity of the line indicators. Rattus norvegicus pregnancy rate average of 23.1% per month, the average number of fetal 8.2, the highest in June to September, January to February the lowest, according to the characteristics of seasonal reproduction, to grasp the timing of hunting, help to improve the killing effect.