MySheen

Prevention and treatment of fulminant hemorrhagic disease of silver carp and bighead carp in Shantang Reservoir

Published: 2024-11-05 Author: mysheen
Last Updated: 2024/11/05, In 2005, silver carp cultured in Mianhuatan reservoir died in a large area, with an incidence area of 200 mu and a mortality rate of 70%. The disease was easy to repeat and difficult to control, and was diagnosed as fulminant hemorrhagic disease of silver carp and bighead carp. The harm of this disease is great, and mariculturists should attach great importance to it. First, the epidemic situation: it is easy to become prevalent in March-May and August-October every year, and the mortality rate of the disease is as high as 70%. Second, the disease: often appear "dark floating head", in the initial stage

In 2005, silver carp cultured in Mianhuatan reservoir died in a large area, with an incidence area of 200 mu and a mortality rate of 70%. The disease was easy to repeat and difficult to control, and was diagnosed as fulminant hemorrhagic disease of silver carp and bighead carp. The harm of this disease is great, so @ # @ 233 families should attach great importance to it.

First, the epidemic situation: it is easy to become prevalent in March-May and August-October every year, and the mortality rate of the disease is as high as 70%.

Second, symptoms: often appear "dark floating head", the initial 10 cm under the surface of the water swimming, serious slow or unresponsive, floating head day and night.

Third, preventive measures: 1, first use quicklime to clean the pond and disinfect. 2. Dibromohydantoin and other whole pools can be used to prevent the onset of the disease.

Fourth, treatment: sprinkle the whole pool with "Yujing Qing" at the time of onset, or sprinkle it with urea, salt, trichlorfon and bleach mixed solution in the whole pool twice in three days.

 
0