Cai Lu, Johnson David, Fang Min, Mandal Prashant, Tu Zhiying, Huang Yingping
Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang, 443002, People's Republic of China.
Key Laboratory of Ecological Impacts of Hydraulic-Projects and Restoration of Aquatic Ecosystem of Ministry of Water Resources, Institute of Hydroecology, Ministry of Water Resources and Chinese Academy of Sciences, Wuhan, 430079, China.
Fish Physiol Biochem. 2017 Feb;43(1):279-286. doi: 10.1007/s10695-016-0285-4. Epub 2016 Sep 8.
The objective of this study is to provide information on changes in swimming capability and respiration of the sterlet sturgeon (Acipenser ruthenus, Linnaeus 1758) caused by different levels of fasting. Before testing, the four groups of sturgeon (body length: 12.1-15.4 cm, body mass: 10.0-20.2 g) fasted for 6 h, 2 days, 1 and 2 weeks, respectively. Swimming tests were then performed to measure critical swimming speed and oxygen consumption at 20 ± 0.5 °C. Results show: (1) Fasting times shorter than 2 days has little effect on swimming capability, but it decreases significantly when the fasting time is longer than a week. (2) After 2 weeks of fasting, swimming efficiency is significantly reduced. (3) Anaerobic capacity increases when digestion nears completion.
本研究的目的是提供有关不同禁食水平导致的俄罗斯鲟（Acipenser ruthenus，林奈，1758年）游泳能力和呼吸变化的信息。在测试前，四组鲟鱼（体长：12.1 - 15.4厘米，体重：10.0 - 20.2克）分别禁食6小时、2天、1周和2周。然后进行游泳测试，以测量20±0.5°C时的临界游泳速度和耗氧量。结果表明：（1）禁食时间短于2天对游泳能力影响不大，但禁食时间超过一周时，游泳能力会显著下降。（2）禁食2周后，游泳效率显著降低。（3）消化接近完成时，无氧能力增加。
