In recent years, farmers have continuously reacted in the process of grass carp farming, the incidence of grass carp liver and gallbladder syndrome is getting higher and higher, resulting in slower growth rate of grass carp, decline in physique, decline in immunity, easy to break out of bacterial diseases, in the follow-up fishing, transportation process is prone to death, bringing economic losses to farmers.
Grass carp, which generally suffer from hepatobiliary syndrome, will manifest itself through organs such as the liver, gallbladder, gills, and intestines.
1, rotten gills, hepatobiliary syndrome caused by rotten gills are different from bacterial gills, grass carp gills are dark red, congestive edema, severe gill end rot and split, there is no obvious open skylight phenomenon, longer than the incubation time of bacterial rotten gill disease.
2. Enteritis, intestinal inflammation caused by hepatobiliary syndrome is similar to bacterial enteritis, there is no food in the intestine, full of yellow mucus, and the anus is red and swollen.
3. Flower liver, grass carp liver suffering from hepatobiliary syndrome is hematomatous, yellow, and whitish becomes flower liver.
4. The gallbladder is enlarged, the grass carp with hepatobiliary syndrome is enlarged, the bile is rich and green, and in severe cases, the grass carp will have bile leakage when it dies.
5. Rotten body, grass carp with hepatobiliary syndrome have a dull body color, a small number of back muscles are rotten, and some of the fins are rotted and forked at the ends.
6. Abnormal body shape, diseased grass carp will have different degrees of ascites, and body fat is enriched after dissection.
Treatment
Regularly in the feeding process, mix and feed the hero's liver and gallbladder, protect the health of the liver and gallbladder, promote the digestion and absorption of fat, reduce the deposition of fat in the liver, and fundamentally prevent and treat hepatobiliary syndrome.