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脂肪酶对南方鲇生长性能、消化酶活性及血液生化指标的影响
引用本文:杨新文,杨毅,冷向军,吴江.脂肪酶对南方鲇生长性能、消化酶活性及血液生化指标的影响[J].淡水渔业,2010,40(3).
作者姓名:杨新文  杨毅  冷向军  吴江
作者单位:1. 上海海洋大学水产与生命学院,上海,201306
2. 上海海洋大学水产与生命学院,上海,201306;通威股份有限公司水产工程技术中心,成都,610081
3. 通威股份有限公司水产工程技术中心,成都,610081
基金项目:上海市重点学科建设项目,通威股份有限公司水产工程技术中心开放基金 
摘    要:在基础饲料中分别添加0、0.1、0.3 g/kg的脂肪酶,饲喂平均体重(57.6±0.02)g的南方鲇(Silurus meridionalis Chen)60 d,测定南方鲇的生长性能、饲料表观消化率、消化酶活性及血液生化指标。结果显示:添加0.1 g/kg和0.3 g/kg的脂肪酶,增重率比对照组分别提高了4.0%和5.8%,但差异不显著(P>0.05),饲料系数分别下降了5.0%和6.6%,差异显著(P<0.05),肥满度和粗脂肪消化率显著提高(P<0.05),对内脏指数、肝脏指数、肠脂指数、胰蛋白酶活力、肠蛋白酶活力、肠脂肪酶活力及血液生化指标均没有显著影响(P>0.05)。添加0.3 g/kg的脂肪酶显著提高胰脂肪酶活力(P<0.05),添加0.1 g/kg的脂肪酶对胰脂肪酶活力没有显著影响(P>0.05)。结果表明,在脂肪水平为10%的饲料中添加0.3 g/kg的脂肪酶可以提高胰脂肪酶活力,提高脂肪消化率,改善饲料利用率。

关 键 词:南方鲇(Silurus  meridionalis  Chen)  脂肪酶  生长性能  消化酶活性  血液生化指标

Effect of dietary lipase on growth performance,digestive enzyme activities and blood biochemical parameters of southern catfish(Silurus meridionalis Chen)
YANG Xin-wen,YANG Yi,LENG Xiang-jun,WU Jiang.Effect of dietary lipase on growth performance,digestive enzyme activities and blood biochemical parameters of southern catfish(Silurus meridionalis Chen)[J].Freshwater Fisheries,2010,40(3).
Authors:YANG Xin-wen  YANG Yi  LENG Xiang-jun  WU Jiang
Institution:YANG Xin-wen1,YANG Yi1,2,LENG Xiang-jun1,WU Jiang2(1.College of Fisheries and Life Science,Shanghai Ocean University,Shanghai 201306,2.Aquacultural Engineering and Technology Center,Tongwei Co.Ltd.Chengdu,Sichuan 610081)
Abstract:Southern catfish(initial weight 57.6±0.02 g) were fed with diets supplemented with three different contents of lipase(0 g/kg,0.1 g/kg and 0.3 g/kg on a dry weight basis) over the course of two months growth trial.Growth performance,apparent diet digestibility,digestive enzyme activities and blood biochemical parameters were tested at the end of growth trial.Compared to control group,the growth rate of group 0.1 g/kg and 0.3 g/kg increased 4.0% and 5.8%(P>0.05),and the feed conversion ratio decreased 5.0% and 6.6%(P<0.05),respectively.Condition factor and lipid digestibility increased(P<0.05).No difference was observed in gut index,hepatosomatic index,mesenteric index,protein digestibility,digestive enzyme activities and blood biochemical parameters among the three groups(P>0.05).Pancreatic lipase activity significantly increased in group 0.3 g/kg(P<0.05),while it was not affected obviously by adding 0.1 g/kg lipase(P>0.05).Results above showed that pancreatic lipase activity,crude lipid digestibility and feed conversion ratio could be improved by adding 0.3 g/kg lipase in diet with 10% lipid.
Keywords:southern catfish(Silurus meridionalis Chen)  lipase  growth performance  digestive enzyme activities  blood biochemical parameters  
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