Fasting in freshwater severely affects growth of juvenile chum salmon when entering cold seawater
Fasting in freshwater severely affects growth of juvenile chum salmon when entering cold seawater
复制标题
在淡水中禁食会严重影响幼鲑鱼在进入寒冷海水时的生长
DOI：
10.1007/s12562-019-01313-3
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发表时间：
2019
影响因子：
1.9
通讯作者：
Shimizu Munetaka
中科院分区：
文献类型：
--
作者：
Nakamura Shu;Kaneko Nobuto;Nonaka Tatsuhiro;Kurita Daiki;Miyakoshi Yasuyuki;Shimizu Munetaka
我们进行了饲养实验，以研究在淡水中禁食和转移到冷海水中对幼鲑鱼生长的累积影响。在2016年5月的第一个实验中，幼鱼在淡水中喂食或禁食5天，并在喂食的情况下适应最佳（10 °C）或低温（5 °C）海水10天。尽管恢复了喂养，但在淡水中禁食并转移到冷海水中的鱼表现出最差的生长。胰岛素样生长因子（IGF）-I，一个积极的增长指标，血清水平也是最低的，这表明在淡水中禁食和转移到冷海水对鲑鱼生长的协同负面影响。2017年5月的一项类似实验表明，在寒冷的海水中生长和血清IGF-I的抑制可能是由于能量主要分配给肝糖原。一方面，IGF结合蛋白-1b的血清水平，生长的一个负面指标，不受海水温度的影响，但在海水中禁食。目前的研究表明，相对短期的禁食淡水严重影响幼鲑鱼转移到冷海水的增长。
We conducted rearing experiments to examine the cumulative effects of fasting in freshwater and transfer to cold seawater on the growth of juvenile chum salmon. In the first experiment in May 2016, juvenile fish were either fed or fasted in freshwater for 5 days and acclimatized to seawater of either optimal (10 °C) or cold (5 °C) temperature for 10 days with feeding. Despite resumed feeding, fish that were fasted in freshwater and transferred to cold seawater showed the poorest growth. Serum levels of insulin-like growth factor (IGF)-I, a positive indicator of growth, were also the lowest in this group, suggesting a synergistic negative effect of fasting in freshwater and transfer to cold seawater on growth in chum salmon. A similar experiment in May 2017 suggested that the depressed growth and serum IGF-I in cold seawater might be due to the predominant allocation of energy to liver glycogen. On the one hand, serum levels of IGF-binding protein-1b, a negative indicator of growth, were not affected by seawater temperature but by fasting in seawater. The present study shows that relatively short-termed fasting in freshwater critically affects growth of juvenile chum salmon transferred to cold seawater.
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影响因子：
20.3
作者：
S. Rajaram;D. Baylink;S. Mohan
通讯作者：
S. Rajaram;D. Baylink;S. Mohan
影响因子：
0.7
作者：
J. Gabillard;C. Weil;P. Rescan;I. Navarro;J. Gutiérrez;P. Bail
通讯作者：
J. Gabillard;C. Weil;P. Rescan;I. Navarro;J. Gutiérrez;P. Bail
DOI：
10.1016/j.cbpa.2015.04.016
发表时间：
2015-09-01
影响因子：
2.3
作者：
Fukuda, Miki;Kaneko, Nobuto;Shimizu, Munetaka
通讯作者：
Shimizu, Munetaka
影响因子：
2.4
作者：
Saito, Toshihiko;Nagasawa, Kazuya
通讯作者：
Nagasawa, Kazuya
DOI：
10.1016/s1096-4959(01)00314-1
发表时间：
2001-06-01
影响因子：
2.2
作者：
Kelley, KM;Haigwood, JT;Galima, MM
通讯作者：
Galima, MM