不同锌水平对水貂生产性能及营养物质消化率的影响

Effect of Different Zn Levels on Performance and Digestibility of Mink

研究不同锌水平对水貂生产性能及营养物质消化率的影响。结果表明:日粮中添加不同水平的锌有降低水貂干物质、有机物质、蛋白质和脂肪采食量的趋势;锌水平为30 mg/kg时显著降低微量元素的排出量,减少微量元素对环境的污染。添加不同锌水平的锌显著提高生长期水貂的日增重。在日粮中添加ZnSO4.7H2O水平为30 mg/kg时水貂日增重效果最好。

Effect of different zinc levels on performance and digestibility of mink was studied in this experiment. The results showed that DM, OM, CP and EE intake of the mink fed the different levels of zinc were trended to decrease. The emission of trace elements was significantly reduced by the mink fed 30 mg/kg zinc and the environmental pollution was reduced. The daily gain of the growing mink was significantly increased as adding different zinc levels. Under this experimental condition, it was the best that zinc levels was 30 mg/kg for daily weight gain.