Although catfish is the dirtiest fish in the world, it can still be put on people's table as a delicious dish. It has tender meat, rich nutrition and high edible value. Strong vitality, can adapt to harsh environment, can adapt to dirty water and muddy water. Excessive dirty matter in fresh water will also affect its normal growth. In fact, catfish is not dirty, but the living environment is poor. This kind of fish is also of high edible value. After fishing, properly cooked and eaten, it can supplement rich nutrition for the human body.
First, how to choose catfish
Catfish is a kind of aquatic fish with high edible value, although its growing environment is very bad, which makes people feel dirty. However, when purchasing catfish, we must pay attention to the selection of wild and fresh catfish, whose body surface is smooth and scaleless, with black patches on the body surface, the whole body is grayish brown, and some black bellies are white. However, when buying catfish, we must pay attention to those artificially cultured black catfish, which have a particularly short growth cycle and low practical value, and try not to.
Second, the precautions for eating catfish
Although catfish looks dirty, it has high practical value, but when buying catfish, you must choose fresh wild catfish. In addition, attention should be paid to cleaning when handling catfish, and all the fish eggs inside should be removed. You must not eat it, because the eggs in catfish are poisonous. People who eat it carelessly will have abdominal pain, diarrhea, vomiting and other symptoms similar to food poisoning, which will make people paralyzed.
Three. Matters needing attention in cleaning catfish
Catfish are aquatic animals that grow up in sewage ponds, so after buying catfish, you must pay attention to cleaning. This kind of fish has a strong muddy smell and rancid smell, and it will have an unpleasant smell if it is not carefully cleaned. Therefore, the bought catfish should not be eaten directly as far as possible. It should be kept in clear water for a few days, and the water should be changed 2~3 times a day to reduce its fishy smell. After the catfish is raised, the blood in its body should be released when it is slaughtered, and then the internal organs should be taken out and cleaned, so that the treated catfish has a light smell, is clean and hygienic, and can ensure food safety.