亲鳖在自然条件下,繁殖周期长、产卵量和孵化率低。要想提高亲鳖的效益,必须提高繁殖力,获得质优量多的幼鳖。一、精选鳖种鳖种要求健康无病、无伤残、行动敏捷、个体大。10岁以上,体重在2.5公斤的鳖种最佳,10岁以下的鳖种体重要在2公斤左右。二、合适的饲养密度和雌雄比例每平方米放0.5～2.8只,重量为0.6～0.9公斤,雌雄比例一般为5:1。雌雄鉴别法为雌鳖尾短,不能自然伸出裙边外,背甲呈椭圆形,中部较平,体型较厚,腹部呈十字型,后肢间距较宽;雄鳖则与此相反。三、产卵和收集亲鳖的繁殖季节为5月下旬至8月下旬,集卵季节为6月下旬至7月。在产卵季节,每周要先在预制的场地泼两次水,使沙土保持湿润,引 Pro-turtle in natural conditions, the breeding cycle is long, the amount of eggs and hatching rate is low. To improve the benefits of pro-turtles, we must increase fertility, access to quality turtle juveniles. First, the selection of soft-shelled turtle species of health requirements without disease, no disability, quick action, individual large. Above 10 years of age, the body weight of 2.5 kg of turtle species best, turtle species under 10 years of age in 2 kg or so. Second, the appropriate stocking density and the proportion of male and female put 0.5 ~ 2.8 per square meter, weighing 0.6 ~ 0.9 kg, male and female ratio is generally 5: 1. Male and female identification method for the female turtle tail short, not naturally out of the skirt, the carapace was oval, the central flat, thick, abdomen was cross, hind legs spacing wider; male turtle is the opposite. Third, spawning and collection Pro soft-shelled turtle breeding season from late May to late August, oviposition season for late June to July. During the spawning season, water should be poured twice a week in a prefabricated site to keep the soil moist