2种中药成分对肉鸡生产性能、营养物质消化利用率、肠道消化酶活性和肠道菌群的影响  

Effects of Two Chinese Medicinal Ingredients on Growth Performance, Digestive Utilization Ratios of Nutrients,Digestive Enzyme Activity and Intestinal Bacterial in Broilers

作　　者：孙耀贵[1] 张向杰[1] 程佳[1] 王俊东[1] 

机构地区：[1]山西农业大学动物科技学院,山西太谷030801

出　　处：《中国畜牧兽医》2013年第4期93-98,共6页China Animal Husbandry & Veterinary Medicine

基　　金：山西省自然科学基金(20031070);山西省青年科技研究基金(2011021007-4)

摘　　要：本试验旨在探讨日粮中分别添加山楂叶总黄酮、何首乌二苯乙烯苷及二者同时添加对肉鸡生产性能、营养物质消化利用率、肠道消化酶活性和肠道菌群的影响,为二者在肉鸡体内的应用提供理论依据。选用1日龄AA肉鸡128只(公),随机分为4组,即空白对照组(饲喂玉米-豆粕型基础日粮)、试验Ⅰ组(在基础日粮中添加300mg/kg山楂叶总黄酮)、试验Ⅱ组(在基础日粮中添加150mg/kg何首乌二苯乙烯苷)和试验Ⅲ组(在基础日粮中添加300mg/kg山楂叶总黄酮和150mg/kg何首乌二苯乙烯苷),每组4个重复,每个重复8只。结果表明:①在整个试验期,试验Ⅲ组的平均日增重显著高于对照组(P<0.05),料重比显著低于对照组(P<0.05);②试验Ⅲ组的粗蛋白质、钙、总磷的消化利用率显著高于对照组和试验Ⅰ、Ⅱ组(P<0.05),粗脂肪的消化利用率极显著低于对照组和试验Ⅰ、Ⅱ组(P<0.01);③试验Ⅲ组的胰蛋白酶活性极显著高于对照组和试验Ⅱ组(P<0.01),脂肪酶活性极显著低于对照组(P<0.01),淀粉酶活性极显著高于对照组和试验Ⅰ组(P<0.01);④试验Ⅲ组的回肠和盲肠大肠杆菌数显著低于对照组和试验Ⅰ、Ⅱ组(P<0.05);回肠乳酸杆菌数显著高于对照组(P<0.05);盲肠乳酸杆菌数显著高于对照组和试验Ⅰ、Ⅱ组(P<0.05)。因此,日粮中单独或同时添加山楂叶总黄酮和何首乌二苯乙烯苷具有提高肉仔鸡生产性能和营养物质的消化利用率,增强肠道胰蛋白酶、淀粉酶活性,降低脂肪酶活性,刺激肠道有益菌生长,降低有害菌增殖等作用,但以二者同时添加效果最好。The experiment was conducted to investigate the effects of TFHL, TSG and TFHL＋TSG supplement in daily ration for broilers on growth performance, utilization rate of nutrients, digestive enzyme activity and intestinal bacterial.128 male broilers （1 day old） were divided randomly into 4 groups, the control group （fed a basal corn-soybean meal diet）, groupⅠ （fed a basal corn-soybean meal diet containing 300 mg/kg TFHL）, groupⅡ （fed a basal corn-soybean meal diet containing 150 mg/kg TSG） and group Ⅲ（fed a basal corn-soybean meal diet containing 300 mg/kg TFHL and 150 mg/kg TSG）. Each group had 4 replacements, each replacement had 8 broilers. The results showed that：compared with the control group, the ADG in group Ⅲ significantly increased （P〈0.05） during the whole experimental periods （1 to 42 days）,and the F/G reduced significantly （P〈0.05）. The digestive utilization ratios of CP, Ca and TP in group Ⅲ were significantly higher than that in control,Ⅰ and Ⅱ groups （P〈0.05）; the EE digestive utilization ratio was significantly lower than that in control, control,Ⅰ and Ⅱ groups （P〈0.01）. Compared with the control and Ⅱ groups ,the Trypsin activity in group Ⅲ increased significantly （P〈0.01）; compared with the control group, the lipase activity significantly lower （P〈0.01）; compared with the control and Ⅰ groups, the amylase activity was significantly increased （P〈0.01）. Compared with the control,Ⅰand Ⅱ groups, the coliform counts in ileum and cecum significantly reduced in group Ⅲ（P〈0.05）. Compared with the control group, the lactic acid bacteria number of ileum in group Ⅲ significantly increased（P〈0.05）; compared with the control,Ⅰ and Ⅱ groups, the lactic acid bacteria number of cecum in group Ⅲ significantly increased（P〈0.05）. Supplement of TFHL or TSG in diet played a role in improving production trait and utility ratio of digestion, enhancing activity of intestinal trypsin and amylase, red

关 键 词：山楂叶总黄酮 何首乌二苯乙烯苷 肉鸡 生产性能 营养物质消化利用率 消化酶活性 肠道菌群 

分 类 号：R284[医药卫生—中药学]