Catfish, commonly known as finless porpoise, is a very important economic fish in China. Although Jiangtuan is big, with an average weight of 5 kg, its meat is very delicious, rich in fat and protein. This kind of fish doesn't have fishbones like catfish.

The finless porpoise mainly lives in the Yangtze River basin and belongs to benthic fish. They don't like living in water with a relatively high speed of life. Their main food is all kinds of mollusks, small fish and shrimp at the bottom of the water. They are not strict about the temperature. They can survive as long as it is above 0 degrees, but the maximum temperature cannot exceed 30 degrees. The breeding season of Jiangtuan is in spring every year. Some areas of the Yangtze River entered a 10-year fishing ban from 202 1, and wild rivers were no longer allowed to fish. Jiangtuan is also listed as a national key protected aquatic product.

The breeding of Jiangtuan has now become a hot industry. The cultivation of Jiangtuan needs pollution-free water. Because they are large benthic fishes, their breeding environment is large and deep. Generally speaking, protein feed, supplemented by other kinds of feed such as fat, can help them grow and develop rapidly.

Because of its high nutritional value and delicious meat, the market price of grouper fish remains high. With the prohibition of fishing in wild Jiangtuan, the price of artificially propagated Jiangtuan fish is not cheap. At present, the market price of a 6 kg or more Jiangtuan is about 200 yuan, 5 kg or so Jiangtuan is about 150 yuan, 4 kg or so Jiangtuan is about 125 yuan, and 3 kg or so Jiangtuan is about 100 yuan. Generally 1-2 kg of Jiangtuan is too small.

The practice of Jiangtuan is actually very simple. Most of them are made into fish soup, pickled fish and grilled fish. Especially the paste ball is the best way to eat pickled fish and grilled fish. There are still some taboos about eating Jiangtuan. People with weak gastrointestinal function and liver function can't eat Jiangtuan.