牛磺酸对草鱼生长、品质、消化酶和代谢酶活性的影响  

Effects of Taurine on Growth Performance,Quality,Digestive and Metabolic Enzyme Activity of Grass Carp (Ctenopharymgodon idellus)

作　　者：罗莉[1] 文华[2] 王琳 李芹[1] 龙勇[1] 郭建林[1] 杨霞[1] 

机构地区：[1]西南大学水产学院,重庆400716 [2]中国水产科学研究院长江水产研究所,荆州434000 [3]重庆市畜牧科学研究院,重庆400039

出　　处：《动物营养学报》2006年第3期166-171,共6页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：国家"十五"科技攻关项目(2004BA526B0604)

摘　　要：本文旨在研究牛磺酸对草鱼的营养效应。选用体长12．5～13．0cm，体重38．1～38．9g的草鱼432尾，随机分为8个处理组，每组54尾，设3个重复，每个重复18尾。在饲料中添加0、200、400、600、800、1000、1400、1800mg／kg的牛磺酸，以0mg／kg添加组为对照组，试验期30d，研究牛磺酸对草鱼生长、品质、消化酶和代谢酶活性的影响。结果表明：（1）牛磺酸促进草鱼生长（除1800mg／kg添加量外）。添加量为600mg／kg时，特定生长率（SGR）、肌肉、肝胰脏RNA／DNA比值、饲料效率（FE）和蛋白质效率最高（P〈0．05）；（2）饲料中添加牛磺酸后，草鱼体水分含量下降，体蛋白、体脂含量增加（P〈0．05），灰分含量、内脏指数、肥满度各试验组之间差异不显著（P〉0．05）；（3）添加适宜牛磺酸（600-800mg／kg），显著提高肝胰脏和肠道脂肪酶、淀粉酶的活性（P〈0．05）；（4）牛磺酸具有促进草鱼肝胰脏和肌肉转氨酶、碱性磷酸酶活性的作用。综合以上结果，草鱼饲料中牛磺酸的最适添加量为600mg／kg。To study the nutritional effects of diets adding taurine （0, 200, 400, 600, 800, 1 000, 1 400, 1 800 mg/kg, respectively） on growth, quality and digestive, and metabolic enzyme activity of grass carps, four hundred and thirty two grass carps with 12.5-13.0 cm body length and 38.1-38.9 g body weight were used. Grass carps were randomly divided into 8 treatments which contained 3 replicates and 18 grass carps for each replicate. The basal diet which was added 0 mg taurine per kilogram was used as control group, and the experiment lasted for 30 days. The results showed that 1） in addition to dietary taurine level at 1 800 mg/kg, growth performance of grass carps were remarkably increased than control group. At 600 mg/kg level, specific growth rate （SGR）, feed efficiency （FE）, protein efficiency ratio （PER） and RNA/DNA in hepatopancreas and muscle got the maximum （P〈0.05） ; 2） protein and fat content of body were improved and moisture of it was decreased after taurine supplied in diets （P〈0.05）, and ash, purtenance index and fullness of grass carps among experimental treatments had no significant difference（P〈0.05） ; 3） in the adding level of taurine at 600-800 mg/kg, activities of lipase and amylase in hepatopancreas and intestine of grass carps were remarkably enhanced; 4） taurine contributed to the activity of transaminas （ALT, AST） and alkaline phosphotase （ALKP） in hepatopancreas and muscle of grass carps. According to above results, the optimum dietary taurine level to grass caps was 600 mg/kg. [Chinese Journal of Animal Nutrition, 2006,18（3） ：166-171 ]

关 键 词：牛磺酸 草鱼 生长 消化酶 代谢酶 

分 类 号：S965.112[农业科学—水产养殖]