Spring fish hepatobiliary syndrome, fish liver swelling and other fish liver bile disease – Aquatic Forum – China Animal Husbandry Website – A useful animal husbandry website

With the arrival of the spring, the temperature of the local temperatures rebounded, and the aquaculture fish began to feed and resume the growth rate. At the same time, there will be a deterioration in the aquaculture water, and the disease is highly died. In the spring pond, the water temperature is 10-20 ° C, the light time and intensity increases, the pond pond algae activity is enhanced, and the natural convection exchange of the aquaculture water is increased. The total amount of oxygen is increased before, and the aquaculture fish enter the feeding, adjust the origin of the body metabolism. period. At the same time, the pond is weak, the pond is weak, and the mud has a lot of mud. The water temperature increase is increased. The pond is generally low, the water quality is thin, the bacteria, the algae is unbalanced; the rain is more rainy and the duration For longer, the pond load is increased or even super-load bearer, and the degree of deterioration in the aquaculture water is more severe, and is one of the high-risk seasons of farming fish diseases, especially fish hepatobiliary syndrome.

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2018-1-31 09:44 Upload

Aqua syndrome is one of the most frequent diseases in today’s breeding, and is wide and harmful. The cultured fish mainly of the grass fish, squid, squid, squid, bluefly, tilapia, yellow squid, and jaundice, etc. can be harmful to this disease. The pathogenesis is high, and the diseased fish is susceptible to other diseases due to their own resistance. After the winter, the newly tempered fish has just opened, the body is weak, the physical metabolism is slow, and the cause of the disease is relatively poor; after the spring, if the breeding household is irregular, if the farmer is not regularly proof or feed inferior feed, easy Causes the metabolic disorder of the aquaculture fish, fat in the liver and the abdomen accumulate; plus the water quality of the first spring pond, there is much larger in the sech mud, the oxygen is low, and the hepatobiliary syndrome of the aquaculture fish is easily induced. It is also believed that the pathogenic factor of the disease is ammonia metabolism. When ammonia in the water body is relatively high level, it can also cause high ammonia in the blood of the aquaculture, and hepatobiliary syndrome can also occur in long-term accumulation. Hepatobiliary syndrome is large, discolored, and textured is typical symptoms. The liver is swollen, the blood is pale, yellowing or has a green block, high fat content, crisp and brittle; gallbladder, bile green or ink green. In addition, the aquaculture fish scales are loose, non-Willa, transport, sensitivity, resistance to temperature changesDecline, may be the expression of hepatic and metabolic abnormalities. The mortality rate of fish caused by hepatobiliary syndrome in spring is as high as 40-60%. The study found that in the feed to add an appropriate amount of bile acid, betaine, chlorine choline, botoxic base, intramin, etc., can promote fat metabolism of fish, reduce the deposition of fat in the liver, and prevent hepatobiliary synthesis The formation of the disease has a significant effect. Among them, bile acid is unique in controlling hepatobiliary syndrome, its mechanism is: 1, bile acid can promote fat emulsification, digestion, and absorption, improve the utilization of energy and nutrients in feed, enhance the body metabolism Function, improve body immunity. 2, bile acid can promote the synthesis of extremely low density lipoproteins in serum, accelerate the transport of fat in the liver to each tissue, reduce the accumulation of fat in the liver, and prevent fish fatty liver disease. 3, bile acid can combine or decompose bacterial endotoxin in the intestine, prevent bacterial endotoxin from entering the liver through the intestinal mucosal barrier, reduce the absorption of the intestine to endotoxin, prevent endotoxin to the intestine, liver and even fish Hazard, reducing bacterial infection against fish. 4, bile acid can promote the secretion of hepatocytes secretion of large amounts of thin bile, other harmful substances such as mold toxins, heavy metals and drugs, to reduce the liver with bile, thereby reducing the damage of toxic substances to the liver, maintaining the health of the fish. Spring is a season of prevention and treatment of pestacteria hepatobiliary syndrome. In addition to optimizing stocking density, regular disinfection and water transfer rectification, correct medication, scientific investment, and add Longchang bile acids and effective means to reasonably circumvent fish hepatobiliary syndrome. Copyright Notice: This article is the Shandong Longchang movement of the original article, and the original text is published in the Dragon Central to China. If you need to reprint, please indicate the source. 34.jpg

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fish hepatobiliary disease, fish liver gallbladder, fish fatty liver, fish fat metabolism, fish metabolism

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