甘氨酸铜对仔猪粪铜含量及粪便细菌区系的影响  

Effects of copper glycinate on the fecal copper content and bacterial flora of weanling pig

作　　者：李荣杰[1] 陆扬[1] 胡二永[1] 字正浩[1] 孙国荣[1] 夏东[1] 

机构地区：[1]上海市农业科学院畜牧兽医研究所,上海201106

出　　处：《上海农业学报》2014年第2期15-18,共4页Acta Agriculturae Shanghai

基　　金：国家公益性农业行业项目(201003011);上海市科技兴农项目(沪农科重字2011第1-3号);上海市科委重点攻关项目(08DZ1900403)资助

摘　　要：以180头体重9～10kg的‘二元’（长×大）仔猪为材料，研究不同剂量的甘氨酸铜（Copper glycinate，Cu—Gly）对仔猪生长性能、粪铜含量和粪便中细菌区系的影响。结果表明：当饲料中的Cu—Gly添加量由120mg／kg降为60mg／kg和30mg／kg时，仔猪的日采食量、平均日增重、料重比和饲料干物质表观消化率均未发生显著变化，但粪铜含量分别下降69．44％和49．07％，差异显著；3组之间粪样大肠菌数量无显著差异，但60mg／kgCu—Gly组粪便中乳酸菌数量显著高于120mg／kgCu—Gly组，60mg／kgCu—Gly和30mg／kgCu．Gly组间差异不显著。60mg／kgCu—Gly和30mg／kgCu—Gly组粪样中细菌区系的Shannon指数显著高于120mg／kgCu—Gly组，60mg／kgCu—Gly和30mg／kgCu—Gly组间差异不显著。One hundred and eighty 9- 10 kg Landrace × Yorkshire crossbred piglets were randomly divided into 3 groups,each group had 5 replicates and each replicate had 12 piglets so as to study the dosage effects of copper glycinate（Cu-Gly）on the growth performance,fecal copper content and fecal bacterial flora of weanling pigs. The results showed that when the amount of Cu-Gly added to diet was reduced from 120 mg/kg to 60 or 30 mg/kg, the daily feed intake, average daily gain, feed conversion rate and apparent digestibility of dry matter did not vary significantly, but the fecal copper content was decreased by 69.44% or 49.137% ;There were no significant differences in the coliform numbers of the 3 groups＇ fecal samples, but the numbers of lactic acid bacteria in the fecal samples of 60 and 30 mg/kg Cu-Gly treatment groups were significantly higher than that of 120 mg/kg Cu-Gly treatment group;The Shannon indexes of the fecal bacterial flora of both 60 and 30 mg/kg Cu-Gly treatment groups were not significantly different but significantly higher than that of 120 mg/kg Cu-Gly treatment group.

关 键 词：断奶仔猪 生长性能 粪 铜 细菌区系 甘氨酸铜 

分 类 号：S816.7[农业科学—饲料科学] S828[农业科学—畜牧学]