Effects of cold acclimation on body mass,serum leptin level,energy metabolism and thermognesis in Eothenomys miletus in Hengduan Mountains region |
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Authors: | Wan-long Zhu Ting JiaXiao Lian Zheng-kun Wang |
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Institution: | Institute of Zoology, School of life Science of Yunnan Normal University, Engineering research center of sustainable development and utilization of biomass energy Ministry of Education, Kunming 650092, China |
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Abstract: | Eothenomys miletus is an important species inhabiting Hengduan mountains region. In order to study adaptive strategy and the role of serum leptin level in response to a 49 d cold exposure, body mass, energy intake, basal metabolic rate (BMR), nonshivering thermogenesis (NST) in E. miletus were measured. During cold exposure (5±1 oC), body mass decreased; serum leptin levels decreased significantly and were positively correlated with body mass and fat mass; energy intake, BMR and NST were higher at 5 °C than that of controls. These results suggest that E. miletus enhanced thermogenic capacity and increased maintenance cost during cold acclimation, resulting in increased energy intake. Serum leptin participated in the regulation of energy balance and body mass in E. miletus. |
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Keywords: | Eothenomys miletus Serum leptin level Thermogenesis Energy intake |
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