Hou Qimiao, Fu Shijian, Huang Tiji, Li Xiuming, Shi Xiaotao
Laboratory of Evolutionary Physiology and Behavior, Chongqing Key Laboratory of Animal Biology, Chongqing Normal University, Chongqing 400047, China.
Hubei International Science and Technology Cooperation Base of Fish Passage, China Three Gorges University, Yichang 443002, China.
Animals (Basel). 2022 Jan 21;12(3):257. doi: 10.3390/ani12030257.
Many studies have found that aerobic exercise training at a moderate water velocity can improve the growth, swimming performance and survival rate of fish. To investigate the effects of aerobic exercise training on the growth, swimming performance, antipredation ability and immune parameters of rock carp, juveniles were placed in training channels with different water velocities (i.e., 3 cm s, 1 (body length s) bl s, 2 bl s and 4 bl s) for 6 weeks. Then, the specific growth rate, critical swimming speed () and its metabolism, constant acceleration speed (), survival rate under predation, spleen index, lysozyme (LZM) activity and immunoglobulin (IgM) level were measured. Training showed no significant effect on the length-specific growth rate, weight-specific growth rate, , maximum metabolic rate (MMR), metabolic scope (MS), or spleen index. The resting metabolic rates (RMRs) of the 2 bl s and 4 bl s training groups were significantly higher than those of the control group and 1 bl s training group. The survival rate of the 1 bl s training group in the presence of predators was significantly higher than that of the control group but significantly lower than those of the 2 bl s and 4 bl s training groups. The LZM activity of the 4 bl s training group was significantly higher than that of the control group. The IgM level of the 2 bl s training group was significantly higher than that of the control group. These data indicate that aerobic exercise training does not improve the growth and swimming performance of juvenile rock carp but can improve their antipredation ability and immunologic function.
许多研究发现，以适度水流速度进行有氧运动训练可改善鱼类的生长、游泳性能和存活率。为了研究有氧运动训练对岩原鲤生长、游泳性能、抗捕食能力和免疫参数的影响，将幼鱼置于不同水流速度（即3厘米/秒、1体长/秒、2体长/秒和4体长/秒）的训练通道中6周。然后，测量特定生长率、临界游泳速度及其代谢、恒定加速度速度、捕食下的存活率、脾脏指数、溶菌酶（LZM）活性和免疫球蛋白（IgM）水平。训练对体长特定生长率、体重特定生长率、临界游泳速度、最大代谢率（MMR）、代谢范围（MS）或脾脏指数没有显著影响。2体长/秒和4体长/秒训练组的静息代谢率（RMR）显著高于对照组和1体长/秒训练组。1体长/秒训练组在有捕食者存在时的存活率显著高于对照组，但显著低于2体长/秒和4体长/秒训练组。4体长/秒训练组的LZM活性显著高于对照组。2体长/秒训练组的IgM水平显著高于对照组。这些数据表明，有氧运动训练并不能改善幼龄岩原鲤的生长和游泳性能，但可以提高它们的抗捕食能力和免疫功能。
