随着河蟹养殖规模日益增大,病害也日趋增多,严重制约了河蟹养殖的效益及发展。为了有效控制蟹病的发生,应贯彻“全面预防,积极治疗”的方针,减少或避免疾病的蔓延,保证河蟹养殖的高产、稳产。 一、改善养殖环境 1.理化方法 (1)清除池塘过多淤泥,排干池水后对池底翻耕,曝 With the increasing scale of crab farming, disease is also increasing, seriously hampered the benefits and development of crab farming. In order to effectively control the occurrence of crab disease, the principle of “comprehensive prevention and active treatment” should be implemented to reduce or avoid the spread of disease and ensure the high yield and stable yield of crab farming. First, improve the farming environment 1 physical and chemical methods (1) clear the pond too much mud, drained the bottom of the pond after the tilling, exposure