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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
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Your Position :Home->Past Journals Catalog->2016 Vol.35 No.4

Effect of Shaving on Sustainable Energy Intake in Eothenomys miletus
Author of the article:ZHU Wanlong1*, LIU Jun2, CAI Jinhong1
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. Lianyungang Normal College, Lianyungang, Jiangsu Province 222006, China
Key Words:Eothenomys miletus; sustainable energy intake; shaving
Abstract:The limits to sustainable energy intake (SusEI) are very important to the mammals' survival during lactation. Previous studies suggested that the SusEI limitation of Eothenomys miletus may be constrained by peripheral limitation hypothesis instead of heat dissipation limitation hypothesis. To distinguish the two ideas, E. miletus were shaved at early lactation, followed by multiple examination of body mass, food intake, resting metabolic rate (RMR), litter size and mass, and milk energy output (MEO) among the shaved mothers and non-shaved controls. The results showed that shaving could significantly increase food intake and RMR, but had no significant effects on litter mass and MEO. These data supported the peripheral limitation hypothesis rather than the heat dissipation limitation hypothesis, indicating that SusEI was more likely peripherally caused by the capacity of mammary gland to produce milk. The inconsistent responses to sustainable limits suggested that the limitations on SusEI during peak lactation might be differed in all species.
2016,35(4): 564-568 收稿日期:2016-03-04
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