在上级党委和有关部门的支持下,我场试养了甲鱼,经过几年的摸索,对甲鱼的繁殖,进行了一些试验和观察,现综合如下: 每年四至八月是甲鱼的繁殖季节,通常在四月末,五月初,水温升到20℃以上时,即可观察到甲鱼开始交配,进行体内受精,后经一段时间即行产卵,产出的卵利用阳光自然孵化,为了控制甲鱼的繁殖,我们做了一些试验: 1.产卵和产卵场:甲鱼通常在泥沙较松 With the support of the Party committees at the higher level and the departments concerned, my field experimented with turtles. After several years of exploration, some experiments and observations were made on the breeding of soft-shelled turtles. The results are summarized as follows. From April to August every year, the breeding season for turtles is usually carried out. Generally, At the end of April and early May, when the water temperature rises above 20 ℃, the turtle can be observed to start mating and in vivo fertilization. After a period of time, the eggs will be spawned. The eggs produced naturally hatch with sunlight. In order to control the reproduction of turtle , We have done some experiments: 1 spawning and spawning grounds: turtles are usually loose in the sediment