How to raise koi? etiology and prevention of viremia in spring of koi
It is mainly caused by carp rod virus. It is a common disease in brocade carp breeding. It is only prevalent in spring when the climate is getting warmer (water temperature 13 ~ 20 ℃).
It mainly harms the koi over one year old, and the fry and breeding fish are rarely infected. Most of them are raised in open-air ponds and in indoor fish tanks, and the incidence is less because the change of water temperature is not so violent.
In the cold water temperature period in nature, the disease is chronic, and when the water temperature warms up in spring, the shellfish is acute, and the mortality rate is high.
Mainly at the end of winter, pay attention to clean up the sediments of the pool, strengthen the disinfection of water sources, and change water regularly to prevent drastic changes in water quality.
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White pine leaf koi shows symptoms of disease
The white pine leaf koi introduces that the white pine leaf is a kind of pine leaf brocade carp. In the brocade carp breed, the scale is pine leaf-like, the whole body is white, and there are black markings on each pine leaf-like scale. White pine leaf brocade carp and light yellow brocade carp belong to the same ancient koi.
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What is the problem of thin brocade carp, treatment of rotten fin and rotten tail of brocade carp-disease and prevention of brocade carp
The disease must be confirmed at the beginning of treatment, then the characteristics of koi rotten fin and rotten tail in the onset period are as follows: at first, the edge of the fin will appear slightly opaque appearance, and then the membrane will constantly fall off, exposing the fin spines, and then the fin spines will split in turn. No treatment.
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