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当前位置: 首页 > 文章 > 摄食水平和投喂频率对大菱鲆幼鱼生长及生化成分的影响 生态学杂志 2013,32 (7) 1844-1849
Position: Home > Articles > Effects of ration level and feeding frequency on the growth and biochemical components of juvenile turbot(Scophthalmus maximus) Chinese Journal of Ecology 2013,32 (7) 1844-1849

摄食水平和投喂频率对大菱鲆幼鱼生长及生化成分的影响

作  者：
李滑滑;吴立新;姜志强;阿荣;陈炜;李洪宇;董益益
单  位：
大连海洋大学辽宁省水生生物学重点实验室
关键词：
摄食水平;投喂频率;大菱鲆幼鱼;生长;生化成分
摘  要：
以大菱鲆幼鱼(7.56±0.03 g)为试验对象,在水温17～19℃下,设计了4个摄食水平梯度(1.0%、1.5%、2.0%和饱食)和3个投喂频率梯度(1、2和3次.d-1),探讨了不同摄食水平和投喂频率对其生长及生化成分的影响。结果表明:随着摄食水平的升高,大菱鲆幼鱼的终末体重、相对增重率和摄食率显著升高(P<0.05);特定生长率随摄食水平的增加呈线性升高;湿重、干重、蛋白质和能量转化效率出现先升高后降低的趋势;摄食水平对鱼体的体成分和组间表观消化率无显著影响(P>0.05);不同投喂频率下,终末体重、相对增重率、特定生长率及转化效率呈先升高再降低的趋势,在2次.d-1时取得最大值;投喂频率对鱼体的体成分和组间表观消化率无显著影响(P>0.05)。
译  名：
Effects of ration level and feeding frequency on the growth and biochemical components of juvenile turbot(Scophthalmus maximus)
作  者：
LI Hua-hua,WU Li-xin,JIANG Zhi-qiang,A Rong,CHEN Wei,LI Hong-yu,DONG Yi-yi(Key Laboratory of Hydrobiology in Liaoning Province,Dalian Ocean University,Dalian 116023,Liaoning,China)
关键词：
ration level;feeding frequency;juvenile Scophthalmus maximus;growth;biochemical composition
摘  要：
Taking juvenile Scophthalmus maximus(initial wet weight 7.56±0.03 g) as test object,an experiment was conducted on its growth and biochemical components under effects of different ration level(1.0%,1.5%,2.0%,and satiation) and feeding frequency(once a day,twice a day,and three times a day) at 17-19 ℃.With increasing ration level,the juvenile final weight,relative rate of body weight gain,and feeding rate all increased significantly(P<0.05).The specific growth rate had a linear increase with ration level;the feed conversion efficiency in wet weight,dry matter,protein,and energy decreased after an initial increase with increasing ration level;whereas the juvenile biochemical components and the apparent digestibility among groups were less affected by ration level(P>0.05).With increasing feeding frequency,the juvenile final weight,relative rate of body weight gain,specific growth rate,and feed conversion efficiency decreased after an initial increase,with the maximum at the feeding frequency of twice a day.No significant differences were observed in the apparent digestibility and biochemical composition among different feeding frequencies(P>0.05).

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