DMPT对草鱼生长性能、SOD活性及血清生化参数的影响  

Effects of dimethl-β-propiothein on the growth performance,SOD activity and serum biochemical parameters in grass carp fish

作　　者：张宝彤[1] 张波[1] 萧培珍[1] 王丽宏[1] 叶元土[2] 

机构地区：[1]北京市营养源研究所水产动物系统营养研究开放实验室 [2]苏州大学基础医学与生物科学学院

出　　处：《中国饲料》2011年第20期28-31,共4页China Feed

基　　金：北京市科学技术研究创新团队(IG201104N)

摘　　要：本试验研究了日粮中添加DMPT对草鱼生长性能、SOD活性和血清生化指标的影响。300尾健康的平均体重71.6±4.8 g的草鱼随机分为5个处理,每个处理3个重复,每个重复20尾。对照组饲喂基础日粮,4个实验组分别在基础日粮上添加50、100、150、200 mg/kg DMPT。整个试验期70 d。结果表明:各处理组均未见死亡。与对照组相比,日粮中添加100 mg/kg和150 mg/kg DMPT草鱼的增重率和特定生长率显著提高(P<0.05),饵料系数显著降低(P<0.05)。与对照组相比,日粮中添加不同浓度的DMPT草鱼血清高密度脂蛋白浓度显著升高(P<0.05),低密度脂蛋白的浓度显著降低(P<0.05);与对照组相比,添加100 mg/kg和150 mg/kg的DMPT血清葡萄糖的含量显著提高(P<0.05);添加100 mg/kg和150 mg/kg DMPT的各试验组草鱼血清、肝脏SOD活性显著提高。以上结果表明日粮中添加100～150 mg/kg DMPT对草鱼具有促生长作用。A study was conducted to assess the effects of dimethyl-β-propiothetin （DMPT）on the growth performance, SOD activity and serum biochemical parameters of grass carp fish.Three-hundred grass carp fishes with the body weight of （71.6±4.8） g were randomly divided into 5 groups with 3 replicate tanks of 20 fishes.The control were fed basal diets, and the four experimental groups were fed basal diets supplemented with DMPT （50,100,150,200 mg/kg）.The experiment lasted for 70 d.The results showed the no mortalities occurred during 70 days.The growth rate and special growth rate of grass carp fish with 100 mg/kg and 150 mg/kg DMPT levels were significantly increased, and the feed conversion rate was decreased （P 〈 0.05）compared with the control.Compared with the control,the supplementation of different levels of DMPT improved the density of high density lipoprotein, and decreased the density of the low density lipoprotein significantly（P 〈 0.05）.The supplementation of 100 mg/kg and 150 mg/kg DMPT significantly increased the serum glucose.And the SOD activities of the serum and the liver were also increased significantly （P 〈 0.05）.Thus,it＇s suggested that 100 150 mg/kg DMPT could be used as a growth promoter for grass carp fish.

关 键 词：DMPT 草鱼 生长性能 血清生化指数 

分 类 号：S963[农业科学—水产养殖]