水生生物学报2016，Vol.40Issue(4)：836-842,7.DOI:10.7541/2016.108
锦鲫幼鱼标准代谢率与生长性能的关联
THE CORRELATIONS BETWEEN STANDARD METABOLIC RATE AND GROWTH PERFORMANCE IN JUVENILE GOLD FISH
摘要
Abstract
The current study investigated the relationship between standard metabolic rate (SMR) and growth perfor-mance using 30 gold fish (Carassius auratus) under the laboratory conditions at (25.0±0.5). All individuals were raised in a man-made laboratory experimental tank for the whole experiment with a 2 weeks feeding and followed by 2 weeks fasting. During feeding stage, each fish was fed twice daily (9:00 and 15:00) and food cunsumption by fish was recor-ded. Two week feeding greatly increased the body mass, body length and SMR, whereas starvation decreased the body mass and SMR without impacting body length (P<0.05). This fish species had similar and stable SMR in feeding period and starvation period (both P<0.05). The SMR1 (at the beginning of feeding experiment) was not correlated with the feeding rate (FR), feeding efficiency (FE) and specific growth rate (SGRBM) of the body mass (P>0.05). SMR2 at the end of feeding experiment was associated with the FR but not FE and SGRBM. Feeding increased body mass and fast-ing decreased the body mass. The theoretic rate of daily increased body mass during the feeding period was not signi-ficantly differ from that of daily decreased body mass during the starvation period (P>0.05) based on the analysis of co-variance. The specific growth rate in SMR (SGRSMR) during the feeding experiment, not SGRBM, was correlated nega-tively with that of the starvation experiment. These results suggest the stable SMR and absolute growth rate of indivi-duals of the juvenile gold fish under the laboratory conditions, but, the SMR of this fish species acclimated at the labora tory surrounding could not predict the adaptive characteristics of growth performance and hence their fitness.关键词
标准代谢率/生长性能/摄食转化率/摄食率/锦鲫Key words
Standard metabolic rate/Growth Performance/Feeding rate/Food efficiency/Carassius auratus分类
生物科学引用本文复制引用
刘欢,李秀明,付世建,曾令清..锦鲫幼鱼标准代谢率与生长性能的关联[J].水生生物学报,2016,40(4):836-842,7.基金项目
国家自然科学基金项目(31300341) （31300341）
重庆市自然科学基金项目(cstc2014jcyjA00018) （cstc2014jcyjA00018）
重庆市教委科技项目(KJ130619)资助[Supported by the National Science Foundation of China (NSFC 31300341) （KJ130619）
the Project of the Natural Science Foundation of Chongqing (cstc2014jcyjA00018) （cstc2014jcyjA00018）
the Science and Technology Project of Chongqing Education Commission (KJ130619)] （KJ130619）
