Liu Yun, Cao Zhen-Dong, Fu Shi-Jian, Peng Jiang-Lan, Wang Yu-Xiang
Laboratory of Evolutionary Physiology and Behavior, Chongqing Key Laboratory of Animal Biology, Chongqing Normal University, 400047, Chongqing, China.
J Comp Physiol B. 2009 Oct;179(7):847-55. doi: 10.1007/s00360-009-0365-1. Epub 2009 May 22.
To investigate the effects of exhaustive chasing training and detraining on the swimming performance of juvenile darkbarbel catfish (Peltebagrus vachelli Richardson), we performed exhaustive chasing training daily for 14 days and subsequently detrained fish for 7 days. Chasing training resulted in significant increases in critical swimming speed (U (crit)), post-chasing peak oxygen consumption rate (VO(2 peak)), and heart and gill indexes compared with non-trained controls. Both resting oxygen consumption (VO(2 rest)) and excess post-chasing VO(2) (EPOC) were unaffected by exhaustive chasing training. Fish that underwent chasing training had lower levels of whole-body lipid content and reduced food intake and growth compared with non-trained control fish; however, condition factor was not affected by chasing training. Seven days of detraining reversed the effects of exhaustive chasing training. Overall, these data suggested that short-term exhaustive chasing training improves aerobic swimming capacity in darkbarbel catfish, but the training effects are reversible over a short period of time.
为了研究极限追逐训练和停训对幼龄黄颡鱼（Peltebagrus vachelli Richardson）游泳性能的影响，我们每天进行14天的极限追逐训练，随后对鱼进行7天的停训。与未训练的对照组相比，追逐训练导致临界游泳速度（U（crit））、追逐后峰值耗氧率（VO₂峰值）以及心脏和鳃指数显著增加。极限追逐训练对静息耗氧率（VO₂静息）和追逐后过量耗氧（EPOC）均无影响。与未训练的对照鱼相比，接受追逐训练的鱼全身脂质含量较低，食物摄入量和生长量减少；然而，肥满度不受追逐训练的影响。7天的停训逆转了极限追逐训练的效果。总体而言，这些数据表明，短期的极限追逐训练可提高黄颡鱼的有氧游泳能力，但训练效果在短时间内是可逆的。
