不同规格大鲵消化酶活性的比较研究  

Comparison of Digestive Enzyme Activities in Giant Salamander Andrias davidianus(Blarchand)with Various Sizes

作　　者：孙翰昌[1] 

机构地区：[1]重庆文理学院重庆珍稀濒危水产资源保护与开发研究中心,重庆402168

出　　处：《水产科学》2014年第7期459-461,共3页Fisheries Science

基　　金：重庆市科委自然科学基金计划资助项目(Cst2011jjA80028);重庆市教委科学技术研究项目(KJ121204)

摘　　要：为探究不同规格大鲵消化酶活性,测得常规养殖大鲵的生长指标及50、500、1500、4500g 4种规格大鲵的胃、前肠、中肠、后肠的胃蛋白酶、胰蛋白酶、脂肪酶及淀粉酶的活性。试验结果显示,大鲵体质量与体长呈幂函数相关,m=7.1789L0.1102x(r2=0.9009,n=38);胃蛋白酶、胰蛋白酶活性随着体质量增加而升高;胰蛋白酶及淀粉酶活性:前肠>中肠>后肠;各个肠段脂肪酶活性无明显差异。The growth performance and activities of digestive enzymes （protease, trypsin, lipase and amylase） were determined in four tissues （stomach, foregut, mid-intestine and hindgut） of Chinese giant salamander Andrias davidianus with body weight of 50 g, 500 g, 1500 g, and 4500 g. The correlation relationship between body weight （L） and body length （rn） was power function, with correlation equation of rn=7. 1789 L^0.1102x（r^2 =0. 9009,n=38）. The activities of protease and trypsin were increased as the growth of the experimental animals. The order of trypsin activity and amylase activity in various tissues of giant salamander was ranged as foregut〉mid-intestine〉hindgut. There was no significant difference in lipase activity in each segment of the intestine.

关 键 词：大鲵 生长性能 消化酶 

分 类 号：S947.3[农业科学—水产养殖]