闫先峰 柴士名 唐伟丽 孙仁修

摘要  研究外源复合酶制剂对断奶仔猪生长性能和经济效益的影响，为外源复合酶制剂在断奶仔猪生产上使用提供理论参考。选择28日龄断奶的健康状况良好的“杜×长×大”三元杂交仔猪60头，随机分为2组，对照组饲喂基础饲粮，试验组在基础饲粮中添加0.5%的复合酶制剂。结果表明，试验组仔猪平均日增重比对照组提高了16.06%，料重比下降了16.05%，差异显著（ P< 0.05）;试验组仔猪腹泻情况明显改善，腹泻率比对照组下降了61.90%，差异显著（ P <0.05）;每头断奶仔猪毛利润增加53.04元，增长了21.85%。说明外源复合酶制剂使断奶仔猪生长性能及经济效益明显增加。

关键词 复合酶制剂;断奶仔猪;生产性能;经济效益

中图分类号 S 816.7  文献标识码 A

文章编号 0517-6611（2021）16-0121-02

doi：10.3969/j.issn.0517-6611.2021.16.032   开放科学（资源服务）标识码（OSID）：

Effects of Exogenous Compound Enzyme Preparation on Growth Performance and Economic Benefit of Weaned Piglets

YAN Xian-feng1，CHAI Shi-ming1，TANG Wei-li2 et al （1.Animal Husbandry General Station of Shandong Province， Jinan， Shandong 250010;2.Yuncheng County Animal Husbandry Service Center， Heze，Shandong 274700）

Abstract The effect of exogenous compound enzyme preparation on growth performance and economic benefit of weaned piglets was studied，and provide theoretical reference for the application of exogenous compound enzyme preparation in pig production.This study selected weaned at 28 days old in good health， "Duroc×Landrace ×Yorkshire" 60 crossbred piglets， divided into two group.The control group was fed with basic diet， and the experimental group added 0.5% compound enzyme preparation to the basic diet.The results showed that compared with the control group， experimental group average daily gain increased by 16.06%， feed conversion ratio decreased by 16.05%， significantly different  （P <0.05）;a decrease of 61.90% in material weight ration was significantly different， the average gross profit increase of 53.04 yuan per head， an increase of 21.85%.The results showed that the growth performance and economic benefit of weaned piglets were significantly increased by exogenous compound enzyme preparation.

Key words Compound enzyme preparation;Weaned piglets;Growth performance;Economic benefits

酶制剂具有破坏植物细胞壁、消除饲料中抗营养因子、提高饲料中营养物质消化率的功能，是一种新型绿色高效的饲料添加剂[1]。仔猪在早期断奶阶段，胃肠道发育尚不完善，消化酶分泌不足，不能满足消化大分子营养物质的需要，容易造成腹泻死亡。研究表明，早期断奶仔猪饲粮中添加外源酶制剂可以提高饲料轉化率，提高仔猪的生产性能[2-3]。饲粮添加含有淀粉酶、蛋白酶和木聚糖酶的复合酶可以提高断奶仔猪养分消化和肠道挥发性脂肪酸浓度，降低肠道致病菌数量，进而改善生长性能[4]。笔者研究在饲粮中添加外源复合酶制剂对断奶仔猪生长性能和经济效益的影响，为外源性复合酶制剂在断奶仔猪生产上使用提供理论参考。

1 材料与方法

1.1 酶制剂

复合酶制剂主要组成成分为α-半乳糖酶、β-葡萄糖酶、脱缩酶、果胶酶、木聚糖酶、植酸酶、酸性蛋白酶、纤维素酶、高温淀粉、低温淀粉酶、非淀粉多糖酶等。……