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大口鲇原名南方大口鲇俗称河鲇,大河鲇,鲢鱼。主产于长江流域各大江河中,是一种以鱼为主食的大型经济鱼类,常见个体约2-5公斤,最大个体可达30公斤以上。大口鲇生长快,饲养5-6个月即可成为商品鱼,对温度的适应性强,可通过人工驯养改变食性。其肉质细嫩,营养丰富,是一种很有推广价值的养殖鱼类。一、形态特征:大口鲇属鲇形目、鲇科。头部较大,略扁,胸腹部短胖,尾部长而扁,眼小,口大,触须2对,胸鳍有一硬刺,其前缘光滑无锯齿,背鳍特长并与尾鳍相连,体表无鳞。大口鲇与土鲇的主要区别是生长快、个体大。胡子
Largemouth 鲇 formerly known as the southern mouth 鲇 commonly known as river 鲇, river 鲇, silver carp. Mainly produced in major rivers in the Yangtze River Basin, is a kind of fish-based large-scale economic fish, common individual about 2-5 kg, the largest individual up to 30 kg. Large mouth 鲇 grow fast, feeding 5-6 months to become a commodity fish, adaptability to temperature, can be changed by artificial domesticated diet. Its delicate meat, nutritious, is a very valuable breeding fish. First, the morphological characteristics: 口 鲇 鲇 form, 鲇 subjects. Large head, slightly flat, chest and abdomen short fat, tail long and flat, small eyes, large mouth, tentacles 2 pairs, pectoral fins have a hard thorn, the front edge smooth and non-serrated, dorsal fin expertise and connected with the caudal fin, scale. The main difference between mackerel and soil is the rapid growth, individual large. Moustache