成年树鼩（Tupaia belangeri chinensis）生殖系统的年周期变化

Investigation of Circannual Changes in Adult Tree Shrew′s(Tupaia belangeri chinensis)Reproductive System

树和许多温带野生哺乳动物一样，属于季节性繁殖的动物。昆明地区的树其生殖季节在２至８月初，８月中至次年１月为非繁殖期。成年树的睾丸、卵巢和生殖管道的形态及重量有明显的季节性变化。雌性和雄性生殖系统的发育基本同步。

Just as many other mammals living in temperate zone,tree shrew belongesto photosensitive seasonally breeding-mammals.The reproductive season of tree shrew inKunming is between 2 and the beginnings of 8 month,the middle of 8 to the next year 1month is noreproductive phase. The testes,ovarium and reproductive tube of adult treeshrew in its morphology and weight have marked seasonal changes.The developments ofmale and female reproductive system have basal synchronization.