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利用4口池塘,每公顷放养75～100g/尾的草鱼种31 612尾～36 486尾。其中2口池草鱼种放养时接种草鱼“四联”疫苗,另2口池设为对照。经6个月的饲养试验,结果表明:接种疫苗的试验池草鱼与未接种疫苗的对照池相比,发病率比对照池低10.7%,成活率与平均产量比对照池分别提高12.8%和20.8%。试验初步证明,接种草鱼四联疫苗能有效地增强草鱼对“四病”的抵御能力,提高草鱼养殖成活率,是有效防治草鱼“四病”的有效措施之一。
Using 4 ponds, stocking 75 to 100 g / tail of grass carp species 31 612 to 36 486 per hectare. Among them, 2 species of grass carp were inoculated with grass carp “quadruple ” vaccine when stocking, and the other 2 were set as control. After six months of feeding experiment, the results showed that the incidence rate of the vaccinated test-tube grass carp was 10.7% lower than that of the non-vaccinated control, and the survival rate and the average yield were increased by 12.8% and 20.8% respectively %. Preliminary tests showed that inoculation of grass carp quadruple vaccines can effectively enhance the resistance of grass carp to “four diseases” and improve the survival rate of grass carp culture, is an effective control of grass carp “four diseases ” effective measures.