黄胸鼠种群繁殖研究初报

• 作 者: 雷帮海 松会武 黄乃锦
• 机 构: 岑巩县植保站,黔东南州植保站,黔东南农校
• 出 处: 贵州农业科学
• 发表日期: 1987年01期
• 关键词: 黄胸鼠 胎仔数 月均温 种群繁殖 雌雄比 岑巩县 观察区 夏秋两季 变幅 雌鼠

岑巩县黄胸鼠种群在秋季活动最频繁,12～3月少见。一年中有两次繁殖高峰,分别出现在5月和9月。胎仔变幅为1～12只,平均7.2只。四季中以冬季胎仔数最少(5.6只),春季最高(7.8)。繁殖以月均温16.5～26.7℃较适宜,低于11℃时受到抑制。一般雌雄比为1:0.9,而春季雄体多于雌体,冬季雄性少于雌性,夏秋两季雌雄接近于1:1。

Cen Gongxiong rhamnose population in the most frequent activities in the fall, 12 to March rare. Twice a year breeding peak, respectively, in May and September. Fetal amplitude of 1 to 12, an average of 7.2 only. Four seasons in winter with the least litter (5.6 only), the highest spring (7.8). Breeding monthly average temperature 16.5 ~ 26.7 ℃ more appropriate, less than 11 ℃ was inhibited. The average ratio of male to female is 1: 0.9, while male in spring is more than female, male in winter is less than female, male and female in summer and autumn are close to 1: 1.