Wallago attu, belonging to the family Siluriformes, is commonly known as Bayhao by the Dai people, and its English name is great white catfish. The ornamental fish trade name is Otto catfish, and it is a famous large fish. This fish is widely distributed in major river systems in South Asia and Southeast Asia, and is also found in the lower reaches of the Lancang River in my country. Catfish has a large yield and tender and delicious meat. It is an important and valuable edible fish.