斑点叉尾，属于鲶形目，鱼回科，亦称沟鲶，原产于美国，是美国主要的淡水养殖和食用鱼类，其产量占美国淡水渔业总产量的首位。斑点叉尾鱼回具有适应能力强、杂食性，易饲养、个体大、生长快、产量高、易捕捞、抗病力强、肉质嫩、味美、营养丰富等优点。1 试验方法1.1 鱼种投 Channel catfish, belonging to the order of the catfish, the fish back to Branch, also known as ditch catfish, native to the United States, is the United States of America’s major freshwater aquaculture and consumption of fish, its production accounts for the United States freshwater fisheries total production first. Catfish back with adaptability, omnivorous, easy feeding, large individuals, fast growth, high yield, easy to catch, disease resistance, tender meat, delicious, nutritious and so on. A test method 1.1 fish cast