论文部分内容阅读
淡水鲨鱼具有生长快、产量高、病害少、适应性强等特点,是近年来新兴的淡水养殖优良品种。2002年我们从胶州国家罗非鱼良种场引进淡水鲨鱼500尾,与淡水白鲳、彩虹鲷进行混养,历时97天,收获淡水鲨鱼435千克,最大个体重1.6千克,平均个体重0.9千克,池塘亩产量达到702千克,亩获纯利
Freshwater shark with fast growth, high yield, less disease, adaptability and other characteristics of the emerging freshwater aquaculture in recent years, fine varieties. In 2002, we introduced 500 freshwater sharks from the Jiaozhou national tilapia breeding farm and mixed them with freshwater white catfish and rainbow snapper for 97 days. We harvested 435 kilograms of freshwater sharks and the largest individual weighed 1.6 kg with an average body weight of 0.9 kg. Pond mu production reached 702 kg, net profit per share