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在含101 mg/kg锌的实用基础饲料中,分别加入0、30、60、90、120和150 mg/kg锌,饲喂初质量为(2.65~2.95)g的方斑东风螺幼螺10周。结果表明:饲料中添加锌,对方斑东风螺的增重率有显著影响,添加30 mg/kg时增重率最大,显著高于对照组。但添加锌没有影响螺的壳增长率、成活率和饵料系数。添加锌对方斑东风螺软体部粗蛋白、脂肪、灰分和水分有一定影响。软体组织锌含量受到饲料锌水平的显著影响,且与饲料锌含量呈正相关y=0.156 3x+9.254 5,R2=0.940 4。以增重率为指标,建议在方斑东风螺的实用饲料中,应添加30 mg/kg锌,锌的总含量约130 mg/kg。
In the practical basal diet containing 101 mg / kg of zinc, 0, 30, 60, 90, 120 and 150 mg / kg of zinc were respectively fed on the T. tabaci tenonella (2.65-2.95 g) week. The results showed that adding Zinc to feed significantly affected the weight gain rate of M. orientalis, and the weight gain rate was the highest at 30 mg / kg, which was significantly higher than that of the control group. However, zinc addition did not affect the shell growth rate, survival rate and feed conversion coefficient. Zinc on the other side of the body to add crude protein, fat, ash and moisture have a certain impact. The zinc content in soft tissue was significantly affected by dietary zinc levels and was positively correlated with dietary zinc (y = 0.156 3x + 9.254 5, R2 = 0.940 4). Weight gain rate as an indicator, it is recommended that the practical feed Fangpi spotworm should be added to 30 mg / kg of zinc, the total zinc content of about 130 mg / kg.