过去,一般人工养鳖,饲养周期长,密度低、产量低、成本高,特别是因鳖冬季蛰伏,每年越冬时不仅长,还要减重250g,故喂养5年以上才能长成1kg多重的商品鳖。1989年以来,曹青山潜心探索太阳能养鳖新技术,利用太阳能照射使鳖冬季不蛰伏,照样摄食生长。在养殖方法上,他 In the past, artificial breeding turtles, feeding cycle length, low density, low yield, high cost, especially because of dormant turtle in winter, not only long winter, but also to lose weight 250g, so feeding more than 5 years to grow into 1kg multiple Commodity turtle. Since 1989, Cao Qingshan devoted himself to exploring solar energy turtle new technology, the use of solar radiation so soft-shelled turtle winter, still feeding growth. In farming methods, he