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所购奥尼罗非鱼在水温(27±2)℃的小水池中暂养7 d后,选择健康、规格和质量基本一致的小、中和大3种规格罗非鱼,分别分成3组,每组40尾鱼,其中Ⅰ组为对照组,饲喂基础饲料,Ⅱ组和Ⅲ组为试验组,分别在基础饲料中添加200和500 g/t雅来益畜宝。试验鱼适应环境2周后开始正式试验,试验期为2周。试验结果表明:与对照组相比,500 g/t雅来益畜宝组显著改善了不同规格罗非鱼的增重率和饲料系数(FCR);200和500 g/t雅来益畜宝组的淀粉酶活力和溶菌酶活力均显著高于对照组。这表明,雅来益畜宝可以显著促进罗非鱼生长,提高饲料消化率和机体免疫水平。
The tilapia of Oreochromis niloticus collected in a small water tank with a water temperature of (27 ± 2) ℃ for 7 d, then selected three sizes of small, medium and large tilapia which are basically the same in size and quality, and were divided into three groups , 40 fish in each group. Group Ⅰ was the control group, basal diet, group Ⅱ and Ⅲ were the experimental group, and 200 and 500 g / Test fish adapt to the environment 2 weeks after the official test, the test period of 2 weeks. The results showed that compared with the control group, the 500 g / t Yilaixishibao group significantly improved the weight gain rate and feed conversion coefficient (FCR) of different sizes of tilapia; 200 and 500 g / Group amylase activity and lysozyme activity were significantly higher than the control group. This shows that Ya Lite livestock treasure can significantly promote the growth of tilapia, improve feed digestibility and immunity levels.