Abstract：To investigate the effect of exercise training and detraining on swimming performance of juvenile
Percocypris pingi, 480 fish (body mass=2.18 g±0.12 g, body length=5.33 cm±0.09 cm) were randomly divided into 4 groups (120 fish per group): control group (C), anaerobic training group (An), 4 body length (BL)·s
-1 group (H) and 2 BL·s
-1 group (L). H and L groups were trained 8 hours per day. All the groups were subjected to exercise training for 30 days and then detrained at 15 ℃±2 ℃. Critical swimming speed (
Ucrit) and endurance time at 1.5
Ucrit were measured at the beginning (T
0), after 30 days of exercise training (T
30), after 20 (DT
20) and 50 (DT
50) days of detraining. The results showed that the sustained exercise training induced a significant increase in aerobic and anaerobic swimming performance of juvenile
P. pingi (
P<0.05), while exhaustive chasing training only improved the anaerobic swimming performance. After 20 days of detraining,
Ucrit of group L was greatly higher than that of groups An and C, while no statistically significant difference was detected between groups An, H and C. On the contrary, the endurance time (at 1.5
Ucrit) of groups An and H was significantly greater than that of group C, while that of groups L and C was not significantly different with each other. After 50 days of detraining, there was no significant difference in
Ucrit and endurance time (at 1.5
Ucrit) between the training and control groups. Therefore, exercise training significantly improved the aerobic and anaerobic swimming performance of juvenile
P. pingi, whereas the improvement and maintenance of exercise training varied in different training modes.
2019,38(4): 361-367 收稿日期：2019-02-12
分类号：Q959.4;Q175
基金项目：雅砻江流域水电开发有限公司项目（YLDC-ZBA-2018116）
作者简介：鲁艳(1994-),女,硕士研究生,研究方向:鱼类行为学,E-mail:13281100569@163.com
*通信作者:宋昭彬,教授,博士生导师,E-mail:zbsong@scu.edu.cn
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