纳米载铜蒙脱石对生长肥育猪生产性能

摘要：试验旨在研究日粮中添加纳米载铜蒙脱石对生长育肥猪生产性能及血液生化指标的影响。选取72头健康“杜×大×长”三元杂交断奶仔猪，随机分为3组，每组3个重复，每个重复8头(公母各半)。分别饲喂基础日粮（对照组）、基础日粮+20 mg/kg泰乐菌素+100 mg/kg磺胺二甲基嘧啶(SM2)（试验Ⅰ组）和基础日粮+1500 mg/kg纳米载铜蒙脱石（MMT-Cu）（试验Ⅱ组）。比较研究MMT-Cu和泰乐菌素＋磺胺二甲基嘧啶对生长肥育猪生产性能及血液生化指标的影响。结果表明，与对照组和试验Ⅰ组相比，试验Ⅱ组料重比、血清ALB、SUN、Ch、TP含量极显著下降(P<0.01)；血钙含量、GTP活性极显著提高（P<0.01）；TP和GLU含量显著下降 (P<0.05)。因此，纳米载铜蒙脱石提高了生长肥育猪的料重比，并对血清中ALB 、Ca、GPT、SUN、TG、Ch、TP、GLU均产生不同程度的影响。

Effects of Cu(Ⅱ)-exchanged Montmorillonite Nanoparticles on Growth Performance and some Blood Biochemical Indexes of Growing-finishing Pigs

Abstract: Study on the effects of Cu(Ⅱ)-exchanged montmorillonite nanoparticles on growth performance and some blood biochemical indexes of pigs.A total of 72 weaning pigs (Duroc×Landrace×Yorkshire) were used to investigate the effects of Cu(Ⅱ)-exchanged montmorillonite nanoparticles(MMT-Cu) on growth performance and some blood biochemical indexes of these pigs and verify MMT-Cu can promote growth performance more than antibiotics.The weaning pigs were allocated to three dietary treatments in a randomized complete block design.The dietary treatments were basal diet，basal diet + 20 mg/kg tylosin+100 mg/kg SM2 and basal diet + 1500 mg/kg MMT-Cu.The results showed that the addition of MMT-Cu to the diet decreased extremely significantly（P<0.01）the F/G during the whole test; the concentration of ALB,SUN,Ch,Tp in surum decreased extremely significantly （P<0.01）; the concentration of Ca,GPT in serum increased extremely significantly (P<0.01) and TG,GLU decreased(P<0.05). These pigs feed the basal diet + 1500 mg/kg MMT-Cu increased the ratio of F/G，and there were various effects on ALB,Ca,GPT,SUN,TG,Ch,TP,GLU.