生态防蚌病的新措施近年来蚌病猖獗，死亡率极高。加之珠价一跌再跌，使珠农亏本停养。造成原因主要是：一、水面重复养殖多年，育珠所需微量元素减少，抗病成珠能力减弱。二、育珠多年，水质瘦化，致病菌蔓延。三、珠蚌接种时消毒不彻底，病毒感染。四、水源感染、污染。... New Measures for Ecological Prevention of Clam Disease Mussel disease is rampant in recent years with a high mortality rate. Coupled with the price of a Pearl fell further, so Zhu Nongda stop trading. The main reasons are: First, the surface of the aquaculture for many years repeated, trace elements required to reduce beads, ability to fight disease weakened. Second, Yuk beads for many years, water quality lean, pathogenic bacteria spread. Third, pearl mussel vaccination disinfection is not complete, the virus infection. Fourth, water infection, pollution. ...