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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
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Your Position :Home->Past Journals Catalog->2016 Vol.35 No.3

Effect of Seasonal Simulation on Energy Metabolism of Eothenomys miletus
Author of the article:YANG Tao1, FU Jiahao1, CHEN Jinlong2, YE Fangyan1, ZUO Mulin1, HOU Dongmin1, ZHU Wanlong1*
Author's Workplace:1. Key Laboratory of Ecological Adaptive Evolution and Conservation on Animals-Plants in Southwest Mountain Ecosystem of Yunnan Province Higher Institutes College, School of Life Sciences, Yunnan Normal University, Kunming 650500, China;
2. Haikou Forest Farm of Kunming, Kunming 650114, China
Key Words:Eothenomys miletus; seasonal simulation; energy metabolism; leptin
Abstract:In order to investigate the body mass regulation and energy metabolism of Eothenomys miletus during seasonal simulation, E. miletus were fed in the simulated summer condition (25℃, 16L:8D) for two weeks and then transferred to simulated winter condition (5℃, 8L:16D) for 8 days. Subsequently, body mass and food intake were measured every two days, resting metabolic rate (RMR) was measured every 7 days, body fat mass and serum leptin level were measured at the end of the experiment. The results showed that body mass were significantly different (F=1.911, P<0.05) under seasonal simulation. Especially on day 22, body mass decreased 12.54% compared with that on day 0. The values of food intake were extreme significantly different (F=8.850, P<0.01) under seasonal simulation, which increased 58.23% on day 22 compared with that on day 0. Seasonal simulation also affected RMR extreme significantly (F=9.969, P<0.01), which increased 82.22% on day 22 compared with that on day 0. Body fat mass was positively correlated with the serum leptin level. The results suggested that E. miletus adopted to cold condition mainly by reducing body mass, increasing food intake and thermogenesis. Moreover, serum leptin levels may be involved in the body mass regulation of E. miletus.
2016,(35): 414-420 收稿日期:2016-01-09
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