投喂频率对黄鳝幼鱼摄食、生长及饵料利用效率的影响  

Impact of feeding frequency on feeding,growth and feed utilization for juvenile Monopterus albus

作　　者：杨帆[1] 张世萍[1] 韩凯佳[1] 李贤[1] 王春芳[1] 谭肖英[1] 

机构地区：[1]华中农业大学水产学院,武汉430070

出　　处：《淡水渔业》2011年第3期50-54,82,共6页Freshwater Fisheries

基　　金：国家科技支撑计划(2007BAD37B04)

摘　　要：研究了不同投喂频率对黄鳝(Monopterus albus)摄食率、特定生长率、饵料效率、体重分化、鱼体组成的影响。试验共设5组不同投喂频率(2、3、4、12次/d和24次/d),每组3个重复,试验持续30 d。结果显示:投喂频率4次/d组的摄食率显著高于其它各组(P<0.05);特定生长率有不同程度增高,4次/d组达到最高(P<0.05);饲料利用效率4次/d组显著高于2次/d组(P<0.05),与其它组无显著性差异(P>0.05);随着投喂频率增加,各试验组组内个体体重无显著差异(P>0.05),黄鳝的规格趋于整齐。试验各组黄鳝的鱼体成分无显著性差异(P>0.05);饵料蛋白质和能量的表观消化率,在4次/d时达到最高(P<0.05)。试验表明:黄鳝的生长受投喂频率的影响,每天投喂4次是黄鳝养殖的最佳投喂频率。Experiments were conducted to investigate the influence of feeding frequency on feeding rate,specific growth rate,feed efficiency,growth differentiation and body composition in a native fish,Monopterus albus.Five groups of the juveniles were fed to satiation including：two meals per day,three meals per day,four meals per day,twelve meals per day and twenty four meals per day for 30 days.The results showed that：the feeding rate and special growth rate increased significantly at four meals per day（P0.05）;and the fish fed with four meals per day showed higher feed efficiency than the fish fed with two meals per day（P0.05）;but the rests were not significantly different with each other（P0.05）.With the gradual increase of feeding frequency,individual differences of fish bodyweight dwindled down,fish size became more equirotal,and body composition were not significantly different among the five groups（P0.05）.Therefore it indicated that the growth performance was affected by feeding frequency,and feeding 4 times daily was the optimum.

关 键 词：黄鳝(Monopterus albus) 投喂频率 生长 

分 类 号：S965.131[农业科学—水产养殖]