提高林蛙雌蛙比例技术的研究

摘要

The differentiation of male and female experiment was made by different temperature gradient, temperature con-trol time and temperature control method in the condition of wild breeding.The result showed that the differentiation of fe-male proportion was the highest when the temperature control treatment from hind limb bub of tadpole grew to bullet shape to transformation period oral fissure exceeded nostril.Its average value which exceeded 37.5% compared with the control was 92.5%.The abnormal time and weight of tadpole had no difference with control.%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。