动物营养学报Issue(8)：2527-2533,7.DOI:10.3969/j.issn.1006-267x.2015.08.026
复合酸化剂对肉鸡消化道 pH和消化酶活性的影响
Effects of Compound Acidifier on pH and Digestive Enzymatic Activities in Digestive Tracts of Broilers
摘要
Abstract
This experiment was conducted to evaluate the effects of dietary supplemented with different com-pound acidifier on pH and digestive enzymatic activity of digestive tracts of broilers, in order to detect the best supplemental level of compound acidifier in broiler diet. A total of 648 one-day-old Arbor Acre ( AA) broilers were randomly assigned to 6 groups with 6 replicates per group and 18 birds per replicate. Broiler in the control group were fed a basal diet, and the others were fed basal diets supplemented with 0.10%, 0.15%, 0.20%, 0.25% and 0.30% compound acidifier, respectively. The experiment lasted for 42 days. The results showed as follows: compound acidifier had significant effects on pH of crop, duodenum, jejunum and ileum of broilers at 42 days of age (P<0.05), and showed a linear correlation (P<0.05). Compound acidifier had significant effects on total enzyme, enzyme activity and activity ratio of pepsin in muscular stomach and glandular stomach of broilers at 42 days of age ( P<0.05) , and showed a linear correlation ( P<0.05) . Compound acidifier had significant effects on the activities of amylase and lipase in small intestine and showed a linear correlation ( P<0.05) , which showed no significant effects on the activities of trypsase and chymotrypsin in small intestine ( P>0.05) . In conclusion, the dosage of compound acidifier in broiler diet for the optimal digestive enzymatic activity of digestive tract is 0.10%.关键词
复合酸化剂/肉鸡/消化道pH/消化酶活性Key words
compound acidifier/broilers/pH value/enzymatic activity分类
农业科技引用本文复制引用
肖芹,沈一茹,张珊,陈杰,施寿荣..复合酸化剂对肉鸡消化道 pH和消化酶活性的影响[J].动物营养学报,2015,(8):2527-2533,7.基金项目
“十二五”国家科技支撑计划(2012BAD39B04) （2012BAD39B04）
江苏省科技公共服务平台项目(BM2012060) （BM2012060）
