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近几年,省内的许多地方在池塘、泡沼养鱼中,都套养了罗非鱼,套养好者,每亩可增产鲜鱼50公斤左右.但也有些地方套养罗非鱼存在一些问题,一是因为套养罗非鱼,使套养的鲤鱼生长不好;二是套养罗非鱼后,鱼的商品规格太小,经济效益不大.前者是因为饲料不足造成的,鲤鱼和罗非鱼都是杂食性鱼类,而罗非鱼的争食能力比鲤鱼强,鲤鱼因缺乏饵料而生长不良.后者是因为放养密度过
In recent years, many places in the province have raised tilapia in well-fed ponds and bubble-raised fish so that a yield of about 50 kg of fresh fish per acre can be increased, but there are also some areas where tilapia There are some problems, first, because raising tilapia, so that the raising of carp growth is poor; the second is the raising of tilapia, fish product specifications is too small, economic benefits. The former is due to insufficient feed , Carp and tilapia are all omnivorous fish, and tilapia fight more carp than carp, carp due to lack of food and poor growth, the latter because the stocking density over