复合酸化剂对鲤生长及消化酶活性的影响  

Effects of Acidifier on Growth and Digestive Enzyme Activity of Common Carp Cyprinus carpio

作　　者：王纪亭[1] 李海涛[2] 宋憬愚[1] 肖新武[1] 孙孟明[1] 万文菊[3] 

机构地区：[1]山东农业大学动物科技学院,山东泰安271000 [2]美国建明工业(珠海)有限公司,广东珠海519020 [3]泰山医学院基础医学部,山东泰安271000

出　　处：《广东海洋大学学报》2009年第1期21-25,共5页Journal of Guangdong Ocean University

基　　金：山东省优秀中青年科学家科研奖励基金项目(2006BS06018);山东农业大学青年创新基金项目(200623417)

摘　　要：在鲤鱼(Cyprinus carpio)基础饲料中,分别添加不同梯度的复合酸化剂(质量分数分别为0、0.2%、0.3%),研究复合酸化剂对其生长和消化酶活性的影响。结果表明:1)添加复合酸化剂显著(P<0.05)提高鲤鱼的相对增重率、特定生长率、饵料转化效率、饲料蛋白质效率以及饲料蛋白质沉积率等生长性能指标;2)添加质量分数0.3%的复合酸化剂时,鲤鱼肝胰脏、前肠和中肠的蛋白酶活性显著提高(P<0.05),酸化剂组的淀粉酶和脂肪酶活性有升高的趋势,但与对照组差异不显著;3)鱼体的粗蛋白质、粗脂肪、粗灰分、水分、肥满度及内脏比等品质指标在各组间差异不显著。综上所述,鲤鱼饲料中添加以柠檬酸、乳酸、磷酸等为主的复合酸化剂,可显著提高鲤鱼肝胰脏、前肠和中肠的蛋白酶活性,促进鲤鱼生长。A feeding trial was conducted to study the effects of acidifier on the growth and digestive enzyme activity of common carp （Cyprinus carpio） fed by diets containing compound acidifier with different levels （0, 0.2%, 0.3%）. The results showed that： （1） The relative weight gain, special growth rate, feed conversion rate, feed protein efficiency and protein deposition rate were improved significantly （P〈0.05） by supplementing compound acidifier in common carp diet. （2） The protease activities in the liver pancreas, fore and middle intestines increased significantly （P〈0.05） by supplementing 0.3% compound acidifier. The activities of amylase and lipase were improved after the supplementation, but not at significant level. （3） Supplementation of compound acidifier in common carp diet did not significantly affect the fish body protein, lipid, ash, moisture contents, coefficient of fatness and viscerosomatic index. Results above showed that adding composite acidifier could significantly enhance the growth, by improving protease activities of liver pancreas, fore and middle intestines in common carp.

关 键 词：鲤 饲料添加剂 复合酸化剂 生长 消化酶 

分 类 号：S963.73[农业科学—水产养殖] S965.116[农业科学—水产科学]