鳜幼鱼配合饲料最适蛋白质含量初步研究

• 作 者: 吴遵霖 李桂云 何顺清 李蓓 潘德思
• 机 构: 湖北省水产研究所
• 出 处: 水利渔业
• 发表日期: 1995年05期
• 关键词: 配合饲料 蛋白质含量 幼鱼 饲料蛋白质 试验饲料 饲料系数 蛋白源 试验鱼 蛋白质利用率 相对增重率

采用精制饲料蛋白质梯度法，以鱼粉蛋白和酪蛋白为蛋白源，测定鳜幼鱼配合饲料最适蛋白质含量。试验期平均水温２１℃；试验鱼为平均尾重１５９±２２ｇ幼鳜；试验饲料蛋白质含量梯度为０％—４９９％；养殖３０天后采用直线回归和抛物线回归计算初步确定，鳜幼鱼配合饲料蛋白质最适含量为４４７％—４５８％。对饲料蛋白质含量与饲料蛋白质利用率、饲料系数和投饲率的相关关系进行了讨论

Using refined feed protein gradient method, using fish meal protein and casein as protein sources, the optimum protein content of juvenile mixed feed was determined. The average water temperature during the experiment was 21 ℃. The average fish tailing weight was 159 ± 22g. The protein content gradient of the test feed was 0% -499%. After breeding for 30 days, the linear regression and parabola regression were used to calculate the average fish temperature. Juvenile fish feed protein optimum content of 44  7% -45  8%. The relationship between feed protein content and feed protein utilization, feed conversion, and feeding rates was discussed