论文部分内容阅读
在林蛙野外养殖环境条件下,采用不同温度梯度、不同控温时间和控温方法进行林蛙雌雄分化试验,结果表明:从蝌蚪后肢芽长出呈子弹头状(第29期)开始进行控温处理,到变态期口裂超过鼻孔(第42期)时结束控温处理,雌蛙分化比例最高,平均为92.5%,比对照高出37.5%;蝌蚪完成变态时间、体重与对照差别不大。
In the wild frog Rana sylvatica culture conditions, different temperature gradients, different temperature control and temperature control methods for male and female Rana chensinensis differentiation test results showed that: from the tadpole hind limb bud was bullet-shaped (No. 29) began to control Temperature treatment, the metamorphosis beyond the nostrils (No. 42) ended temperature control treatment, the highest proportion of female frog differentiation, an average of 92.5%, 37.5% higher than the control; tadpole metamorphosis time, body weight and the control difference is not large .