Effect of Carbohydrate Content in Feed on the Daily Metabolic Rate of S. meridionalis  

饲料糖含量对南方鲇幼鱼日常代谢率的影响(英文)

作　　者：付世建[1] 谢小军[2] 

机构地区：[1]重庆师范大学生命科学学院,重庆400047 [2]西南师范大学水产科学研究所,重庆400715

出　　处：《Agricultural Science & Technology》2007年第3期68-72,共5页农业科学与技术（英文版）

基　　金：Supported by the National Natural Science Foundation of China(30371121)~~

摘　　要：The routine metabolic rate in southern catfish juvenile(24.3-250.8 g)fed with saccharine feed(CHO)was measured in this study.Fish were fed with iso-nitrogenous(40 % crude protein)and iso-lipidic(10% crude lipid)experimental feed containing 0(control feed),15%,30% of carbohydrate level.The routine metabolic rates of 15 % and 30% dietary carbohydrate group were significantly higher than that of 0% dietary carbohydrate group.The relationship between body mass(Wt)and routine metabolic rate(Rr)of southern catfishfed with different test feed could be described as:(1)0% CHO:ln(Rr)=0.986 ln(Wt)+1.419 r2=0.922,n=25,P<0.001;(2)15% CHO:ln(Rr)=0.912 ln(Wt)+1.741 r2=0.966,n=21,P<0.001;(3)30% CHO:ln(Rr)=0.762 ln(Wt)+2.378 r2=0.958,n=21,P<0.001.The intercept was increased and mass coefficient was decreased with the increase of carbohydrate level in feed.It could be concluded that southern Silurus meridionalis had poor metabolic capacity which led the increase of routine metabolic rate of fish with small size.But with the increase of body size southern Silurus meridionalis might had a better adaptation to high carbohydrate concentration.The routine metabolic rate in southern catfish juvenile （24.3 -250.8 g） fed with saccharine feed （CHO） was measured in this study. Fish were fed with iso-nitrogenous （40 % crude protein） and iso-lipidic （10% crude lipid） experimental feed containing 0 （control feed）, 15%, 30% of carbohydrate level. The routine metabolic rates of 15 % and 30% dietary carbohydrate group were significantly higher than that of 0% dietary carbohydrate group. The relationship between body mass （ Wt ） and routine metabolic rate （Rr） of southern catfishfed with different test feed could be described as ： （ 1 ） 0% CHO：ln （Rr） =0.986 ln （Wt） ＋1.419 r^2 =0.922, n=25, P〈0.001;（2）15% CHO：ln（Rr） =0.912 ln （Wt） ＋1.741 r^2 =0.966, n=21, P〈 0.001;（3）30% CHO：ln（Rr） =0.762 ln （Wt） ＋2.378 r^2 =0.958, n=21, P〈0.001. The intercept was increased and mass coefficient was decreased with the increase of carbohydrate level in feed. it could be concluded that southern Silurus meridionalis had poor metabolic capacity which led the increase of routine metabolic rate of fish with small size. But with the increase of body size southern Silurus meridionalis might had a better adaptation to high carbohydrate concentration.

关 键 词：Routine metabolic rate CARBOHYDRATE Silurus meridionalis 

分 类 号：S963[农业科学—水产养殖]