光倒刺鲃网箱高产养殖研究

目的]研究光倒刺鲃网箱养殖。方法]在广西昭平县桂江、龙州县左江和南宁市郁江分别设置网箱养光倒刺鲃商品鱼。结果]平均单产为76.65 kg/m2,投喂配合饲料,饵料系数4.12,养殖的经济效益以昭平六养殖户为例,单位面积利润为500~661元/m2,瞬时生长率(gi)昭平为0.066 9,龙州为0.143 5,南宁为0.133 8,前者生长速度显著缓慢与水温有关。结论]昭平商品鱼质量最好,可能与水质有关。

Research on the High yielding Spininbabus hollandi Oshima Cultured in Cage

Objective] The Spininbabus hollandi Oshima,raised in cage,was researched.Method] The site of the Spininbabus hollandi Oshima raised in cage was set up in Guijiang of Zhaoping County,Zuojiang of Longzhou County and Yujiang of Nanning city in Guangxi Province.Result] The average yield of Spininbabus hollandi Oshima fed with compound feed was 76.65 kg/m2.The coefficient of bait to feed was 4.12.The economic benefits of aquaculture of six farmers in Zhaoping,for example,was 500 to 661 yuan/m2.The instantaneous growth rate(gi) was 0.066 9 in Zhaoping,0.143 5 in Longzhou and 0.133 8 in Nanning and the slow growth rate of the former was significantly related to the water temperature.Conclusion] The fish products from Zhaoping had the best quality,which could be related to water quality.