How to treat grass carp with enteritis? What is the cause of the disease? How to prevent it?

Grass carp enteritis is no stranger to farmers, commonly known as rotten intestine plague, often with bacterial Gill rot, red skin disease and other diseases, is a more serious grass carp disease. So how to treat grass carp with enteritis? What is the cause of the disease? How to prevent it?

First, what are the symptoms and causes of grass carp enteritis?

Symptoms:

The main results are as follows: 1. In the initial stage, there is the phenomenon of fried group, the sick fish swim slowly, the body color is black, and the appetite is decreased. Don't even eat.

2. The scales of the whole body are loose and erect, the base is red, both sides of the abdomen are swollen, the anus is red, swollen and protruding slightly, and there is blood flowing out of the abdomen under slight pressure.

4. In the later stage of the disease, it can be seen that the intestines, esophagus and stomach are red, the internal organs are abnormal, the elasticity of the intestinal wall is very poor, there is only yellowish mucus in the intestines, and blood pus fills the intestines. The infection rate and mortality rate are very high.

Cause of the disease:

1, the summer temperature is too high to feed grass carp without disinfection of inferior feed and aquatic plants, easy to suffer from this disease.

2. This disease often occurs when the fish body resistance decreases when the water quality deteriorates, there is a lot of silt at the bottom and the dissolved oxygen is low.

3. Fish enteritis is a bacterial enteritis caused by intestinal type Aeromonas punctatus infection. The pathogen of this disease is intestinal type Aeromonas punctata, which is a conditional pathogen.

Second, how to prevent grass carp enteritis?

1. Feed scientifically, eat less and eat more, and feed compound feed to achieve "four determinations" and "four looks".

2. Do the work of prevention and disinfection of water body, change the bottom regularly, pay more attention to the regulation of water quality, reasonable fertilization, disinfection and disinfection from time to time.

3. Prevention in advance, adding some antibacterial and antiviral diseases (Eucommia ulmoides leaf extract) to the usual diet in advance to enhance the immunity and anti-stress ability of fish.

Third, how to treat grass carp with enteritis?

1. Sprinkle medicine in the whole pool: bleach powder in the whole pool, 0.1 grams per cubic meter of water; or strong cyanogen (trichloroisocyanuric acid) in the whole pool, 0.2 grams per cubic meter of water; or chlorine dioxide in the whole pool, 0.3 grams per cubic meter of water; or dibromohydantoin 0.2 grams per cubic meter of water.

2. Feeding bait: feeding oxytetracycline bait, feeding 50mg / kg fish, feeding fish in feed for 4 days, combined with Lechang-eucalyptus essential oil to inhibit intestinal harmful bacteria, 100g Lechang mixed with 300-400 jin feed.