The obvious symptoms of the spotted perch are spots on the surface of the diseased fish, scales falling off, small area ulcers, congestion and redness at the base of the fin, especially at the base of the gluteal fin, and some of the diseased fish will have black bodies, gray eyes and die soon. The main symptoms of rotten fish are large area and deep decay of muscles such as back and side. Rot body belongs to Aeromonas and Edwardsiella infection, Nocardia can also cause rot body, so it can be seen that the source of rot body lies in bacterial infection, but bacterial infection is everywhere, and extensive use of antibiotics has not improved the rot body, but it has increased the cost without controlling the disease and reducing the loss.
how to deal with the rotten body of California bass correctly?
1. Strengthen water quality management
At present, most of the frequent rotten diseases are caused by bacterial infection, especially in the high temperature period, many breeding friends have no awareness of health care, which leads to disease outbreaks and difficult treatment. The high temperature period is the period of rapid growth of fish and rapid reproduction of bacteria. A little negligence may cause irreversible losses. Therefore, improving the water quality environment to avoid further expansion of lesions and serious ulcers is beneficial to the recovery of fish physique. Therefore, mild disinfectants are used for disinfection, such as iodine, benzalkonium bromide and other irritating disinfection, to avoid damage to the liver caused by strong irritation.
2. At present, the price of fish is relatively high, and aquaculture friends will feed it in large quantities to make the fish grow rapidly. However, if the California perch with rotten flowers and bodies has appeared, it is necessary to stop feeding or reduce the feed at this time to avoid a heavy burden on the liver and intestines of the fish, and we should have the consciousness of "feeding steadily".
3. The immune organs of California perch are mainly liver and kidney. In practice, it is often found that the pond mouth with poor liver and kidney of California perch is more likely to rot, because the fish's immunity is poor, and bacteria and viruses are more likely to invade and infect. However, California perch is prone to fatty liver due to congenital diabetes. Common California perch has a fat belly and a white, yellow and green liver. Bile acid can promote fat conversion of California perch and repair damaged liver cells. At the same time, Happiness 1 also has the function of nourishing liver and strengthening kidney function, and chlorogenic acid is also resistant to viruses, so oral administration of bile acid and Happiness 1 can improve the immunity of California bass and reduce the occurrence of rotten body.
for the "rotten body" of California bass, farmers need to adhere to the principle of "prevention is better than cure", and do a good job in the management of usual prevention, water disinfection, sediment improvement and reasonable feeding, so as to avoid the occurrence of diseases affecting the breeding efficiency! At present, the large-scale perch stored in ponds in various producing areas continues to decrease, and the price of California perch has also taken a ride of rapid increase, reaching as high as 23 yuan/kg at one time. The high price of fish has made aquaculture friends happy. However, with the increase of temperature, bacteria proliferate in large numbers, and the diseases of California perch also show signs of high incidence, mainly caused by bacterial infection, and the proportion of rotten bodies in serious ponds is as high as 2-3%. As far as the current high price of California perch is concerned, the losses caused by rotten bodies are not small at all.
The obvious symptoms of the spotted perch are spots on the surface of the diseased fish, scales falling off, small area ulcers, congestion and redness at the base of the fin, especially at the base of the gluteal fin, and some diseased fish will be black, their eyes will be gray, and they will soon die. The main symptoms of rotten fish are large area and deep decay of muscles such as back and side. Rot body belongs to Aeromonas and Edwardsiella infection, Nocardia can also cause rot body, so it can be seen that the source of rot body lies in bacterial infection, but bacterial infection is everywhere, and extensive use of antibiotics has not improved the rot body, but it has increased the cost without controlling the disease and reducing the loss.
how to deal with the rotten body of California bass correctly?
1. Strengthen water quality management
At present, most of the frequent rotten diseases are caused by bacterial infection, especially in the high temperature period, many breeding friends have no awareness of health care, which leads to disease outbreaks and difficult treatment. The high temperature period is the period of rapid growth of fish and rapid reproduction of bacteria. A little negligence may cause irreversible losses. Therefore, improving the water quality environment to avoid further expansion of lesions and serious ulcers is beneficial to the recovery of fish physique. Therefore, mild disinfectants are used for disinfection, such as iodine, benzalkonium bromide and other irritating disinfection, to avoid damage to the liver caused by strong irritation.
2. At present, the price of fish is relatively high, and aquaculture friends will feed it in large quantities to make the fish grow rapidly. However, if the California perch with rotten flowers and bodies has appeared, it is necessary to stop feeding or reduce the feed at this time to avoid a heavy burden on the liver and intestines of the fish, and we should have the consciousness of "feeding steadily".
3. The immune organs of California perch are mainly liver and kidney. In practice, it is often found that the pond mouth with poor liver and kidney of California perch is more likely to rot, because the fish's immunity is poor, and bacteria and viruses are more likely to invade and infect. However, California perch is prone to fatty liver due to congenital diabetes. Common California perch has a fat belly and a white, yellow and green liver. Bile acid can promote fat conversion of California perch and repair damaged liver cells. At the same time, Happiness 1 also has the function of nourishing liver and strengthening kidney function, and chlorogenic acid is also resistant to viruses, so oral administration of bile acid and Happiness 1 can improve the immunity of California bass and reduce the occurrence of rotten body.
for the "rotten body" of California bass, farmers need to adhere to the principle of "prevention is better than cure", and do a good job in the management of usual prevention, water disinfection, sediment improvement and reasonable feeding, so as to avoid the occurrence of diseases affecting the breeding efficiency!