微量元素对鲤生长和营养状况的影响

Effect of different forms of trace elements additives in feed on growth and nutritional condition of common carp (\%Cyprinus carpio\% L.)

在基础饲料中分别添加无机盐、螯合盐、麦饭石、麦饭石稀土 ,对比养鲤结果表明 :麦饭石稀土 (Ⅰ )组鲤生长最快 ,其次是螯合盐组、麦饭石稀土 (Ⅱ )组、麦饭石组、无机盐组。未添加微量元素的基础组生长最慢。方差分析表明 ,添加麦饭石的 3个试验组及螯合盐组鱼平均增重率与无机盐组差异显著 (P <0 0 5) ,与基础组差异极显著(P <0 0 1 ) ;麦饭石稀土 (Ⅰ )组与麦饭石组、无机盐组差异极显著 (P <0 0 1 ) ,与麦饭石稀土 (Ⅱ )组、螯合盐组差异不显著 (P >0 0 5)。对鲤的肌肉营养分析表明 ,螯合盐组及添加麦饭石的 3个试验组鱼肌肉中粗蛋白、粗脂肪含量都略高于基础组和无机盐组 ,但差异不显著 (P >0 0 5)。

MF (Granite), MF (Granite) rare earth, chelates or inorganic salt were added to carp (\%Cyprinus carpio\%) feed, respectively, and growth performance was examined. The results illustrated that the carp fed MF(Granite) rare earth group (Ⅰ) had the best growth followed by the fish fed chelates group and MF (Granite) rare earth group (Ⅱ), MF (Granite) group and inorganic salt. There was the poorest growth in control without trace element addition. The variance analysis demonstrates that there was significant difference (\%P<0 01\%) in average weight gain rate between the three treatments and the chelates group in which MF (Granite) was blended and inorganic salt group (\%P<0 05\%) There was no significant difference between the MF (Granite) rare earth group (Ⅱ) and the MF (Granite) rare earth group (Ⅱ) and the chelates group (\%P>0 05\%). The analysis of nutrition composition of the fish mussles indicates that the contents of crude protein and fat in the three experiment groups within chelate addition MF (Granite) were slightly more than those in control and inorganic salt group, but there was no significant difference (\%P>0 05\%)