广东省中山市横栏镇有3万亩鱼塘,有养四大家鱼的(当地叫塘鱼),有养罗氏沼虾、白对虾的,也有养桂花鱼、加洲鲈、叉尾(鱼回)等名优鱼的,但据笔者了解,在众多养殖品种中,以养甲鱼的经济效益最好。去年该镇养殖3000亩甲鱼,当年平均每亩上市500公斤,亩收入22500元,亩纯收入12000元,其利润率比塘鱼高9倍,比养虾高2倍,比养其他名优鱼类高1.5倍,出现了一些年纯收入三、四十万元养殖大户,今年甲鱼养殖效益有望胜过去年。 Henglan Town, Zhongshan City, Guangdong Province has 30,000 mu of fish ponds, there are four major domestic fish (locally called pond fish), there are Macrobrachium, white prawn, but also raised sweet-scented osmanthus fish, Back) and other famous fish, but as far as I know, in many breeds, in order to raise the best turtle economic benefits. Last year, the town breeding 3000 mussels, the average listing of 500 kg per mu, mu income 22,500 yuan, net income of 12,000 yuan mu, its profit margin 9 times higher than the pond fish, shrimp than 2 times higher than raising other famous fish 1.5 times higher, there have been some annual net income of three or four hundred thousand yuan breeding large, turtle breeding this year, the benefits expected to be better than last year.