论文部分内容阅读
防河蟹秋季死亡办法秋天是养殖河蟹成熟和收获的季节，又是河蟹极易死亡的时期。有的养蟹户不注意加强饲养管理，引起河蟹大批死亡，造成经济损失。因此，预防河蟹死亡，是提高河蟹成活率，增加经济效益的关键之一。秋防河蟹死亡应注意以下三个方面。一是自然死亡。俗话说...
Anti-crab fall death approach autumn is farming crabs mature and harvest season, but also crabs easily died of period. Some crabs do not pay attention to strengthening the feeding and management, causing a large number of crabs died, resulting in economic losses. Therefore, the prevention of death of crabs is one of the keys to improve the survival rate of crabs and increase economic benefits. Fall prevention crab death should pay attention to the following three aspects. First, natural death. As the saying goes ...