蛋氨酸螯合铜替代无机铜与益生素合用对仔猪生产性能的影响

Effects of Copper-Methionine(Cu-Met) Chelate Substituting for Inorganic Copper Together with Probiotics on the Production Performance of Piglets

[目的]探讨蛋氨酸铜替代无机硫酸铜与益生素合用对仔猪生产性能的影响。[方法]将96头荣昌猪仔猪分为4组,采用不同日粮进行饲养试验,测定仔猪的生长性能和血液生化指标,研究仔猪小肠粘膜细胞的细菌繁殖情况和断奶仔猪腹泻率。[结果]蛋氨酸螯合铜可显著提高活菌制剂的促生长功能。同时添加蛋氨酸铜和益生素试验组仔猪的日增重和料重比均显著高于对照组和益生素单独添加组。添加益生素后可有效增加仔猪肠道内有益菌的数量,抑制有害菌的生长。蛋氨酸螯合铜和益生素协同作用具有较好的促生长效果。[结论]蛋氨酸螯合铜与益生素合用能明显提高仔猪生产性能,二者在仔猪全价饲料中的适宜添加量为150 mg/kg和1 g/kg。

[Objective] The aim of this study was to explore the effects of methionine copper（Cu-Met） chelate substituting for inorganic copper together with probiotics on productive performance of piglets.[Method] 96 piglets of Rongchang Pig were randomly divided into four groups and feeding experiment was made with different diets.The growth performance and blood biochemical indices of piglets were determined.And the bacteria propagation situations of intestinal mucosal cells of piglets and diarrhea rate of weaned piglets were studied.[Result] Cu-Met chelate could significantly enhance the growth-promoting function of living bacteria preparation.The daily weight gain and the feed-gain ratio of piglets in the test group with adding Cu-Met and probiotics together were significantly higher than that in control group and group of adding probiotics singly.Adding probiotics could effectively increase the amount of beneficial bacteria in piglet intestine and inhibit the growth of harmful bacteria.Synergism of Cu-Met chelate with probiotics had better growth-growing effects.[Conclusion] Cu-Met chelate together with probiotics could obviously enhance the production performance of piglets and their suitable dose in complete feed of piglets were 150 mg/kg and 1 g/kg respectively.