<h1 class="pgc-h-arrow-right" data-track="1" > the onset of grass carp hepatobiliary syndrome</h1>
When the grass carp liver and gallbladder syndrome is mild, the fish body generally has no obvious symptoms, and there is no obvious change in the color and shape of the fish. Sometimes the edge of the tail fin is white and dry, only the appetite is weak, swimming weakly; sometimes it is anxious and restless, and even out of the water; when the disease is serious, the fish body color is black, the color is dark, the fish body has a feeling of puffiness, the scales are loose and easy to fall off, swimming irregularly, losing balance, or standing still in the water; appetite declines, sluggish response, breathing difficulties, and even coma flips, and soon dies.
Dissection found that the liver color changed, showing flower spots, earth yellow, yellow-brown, etc., the gallbladder became larger and the bile became blacker. In addition, the fish body is very resistant to stress, when fishing or transport, often cause the fish body to be congested or bleeding, out of the water soon after death, or death in transit.
<h1 class="pgc-h-arrow-right" data-track="14" how to treat grass carp liver and gallbladder syndrome >? </h1>
1. Cultivate good water quality and keep the water quality fresh;
2. Choose the feed prepared by professional feed manufacturers with good reputation, scientific feeding, reasonable feeding;
3. Keep the bait fresh, prevent protein deterioration and fat oxidation and decomposition, and prevent the feed from moisture and mold.
4, do not add antibacterial drugs that damage the liver of fish in low doses for a long time in the feed, and do a rational use of drugs, and use less fish drugs with large side effects and high residues.
5, in the process of breeding, to patrol the pond diligently, such as when the fish liver lesions are found, timely fill with new water, and feed the bait made of vitamins and a small amount of rare elements or Chinese herbal medicines, generally feeding for 7 days for a course of treatment, can effectively prevent the disease.
6. Once it is found that grass carp suffers from hepatobiliary syndrome, the mixture is fed to hepatoprotective choleretic herbs such as orbioside + Aobahuang, or VC and VE are added to the feed.
7. Reduce the amount of feed feeding and feed some grass or aquatic grass.
8. Use as little heavy metal ion insecticides such as copper sulfate as much as possible to prevent excessive accumulation in the pond from causing damage to the liver.