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Comparison of time-restricted and ad libitum self-feeding on the growth, feeding behavior and daily digestive enzyme profiles of Atlantic salmon
Shi Ce1,3; Liu Ying1,3,4; Yi Mengmeng1,2; Zheng Jimeng1,2; Tian Huiqin1; Du Yishuai1,3; Li Xian1,3; Sun Guoxiang1,3
2017-07-01
发表期刊CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
卷号35期号:4页码:729-736
文章类型Article
摘要Although it has been hypothesized that a predictable feeding regime in animals allows physiological variables to be adjusted to maximize nutrient utilization and, hence, better growth performance, the assumption has rarely been tested. This study compares the effects of time-restricted versus free access self-feeding on the growth, feeding behavior and daily digestive enzyme rhythms of Atlantic salmon (Salmo salar). In an experiment that lasted 6 weeks, fish (109.9 g) were divided into two groups: group 1 had free access to a self-feeder (FA); group 2 received three meals per day (2 h per meal) at dawn, midday and dusk via a time-restricted self-feeder (TR). At the end of the experiment, the fish were sampled every 3 h over a 24-h period. The results showed that the TR fish quickly synchronized their feeding behavior to the feeding window and their blood glucose showed a significant postprandial increase, while FA fish displayed no statistically significant rhythms (P > 0.05). Pepsin activity of TR fish also showed a significant daily rhythm (P < 0.05) with the acrophase at the second feed and a decrease over the next 12 h. Average daily trypsin, lipase and amylase levels of FA fish were significantly lower than those of TR fish (P < 0.01); however, the growth performance of both groups was similar (P > 0.05). In conclusion, the study failed to confirm a link between the entrainment of daily digestive enzyme profiles and growth performance, with the TR group showing comparatively poor blood glucose regulation.
关键词Atlantic Salmon (Salmo Salar) Self-feeding Regime Feeding Behavior Digestive Physiology Daily Rhythm
DOI10.1007/s00343-017-5346-8
收录类别SCI
语种英语
WOS记录号WOS:000403701200002
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/137132
专题海洋生物技术研发中心
作者单位1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Natl & Local Joint Engn Lab Ecol Mariculture, Qingdao 266071, Peoples R China
4.Dalian Ocean Univ, Sch Marine Sci & Environm Engn, Dalian 116023, Peoples R China
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Shi Ce,Liu Ying,Yi Mengmeng,et al. Comparison of time-restricted and ad libitum self-feeding on the growth, feeding behavior and daily digestive enzyme profiles of Atlantic salmon[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2017,35(4):729-736.
APA Shi Ce.,Liu Ying.,Yi Mengmeng.,Zheng Jimeng.,Tian Huiqin.,...&Sun Guoxiang.(2017).Comparison of time-restricted and ad libitum self-feeding on the growth, feeding behavior and daily digestive enzyme profiles of Atlantic salmon.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,35(4),729-736.
MLA Shi Ce,et al."Comparison of time-restricted and ad libitum self-feeding on the growth, feeding behavior and daily digestive enzyme profiles of Atlantic salmon".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 35.4(2017):729-736.
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