Acta Scientiarum Naturalium Universitatis Pekinensis

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Milk Composition and Nursing in a Giant Panda(Ailuropoda melanoleuca)

PAN Wenshi, Olav T.Oftedal, ZHU Xiaojian, Sara Childs, WANG Dajun, Devra G.Kleiman   

  1. College of Life Sciences, Peking University, Beijing 100871; Department of Zoological Research, National Zoological Park, Smithsonian Institution, Washington D.C. 20008
  • Received:1998-02-18 Online:1998-04-20 Published:1998-04-20

一个大熊猫(Ailuropoda melanoleuca)奶样的成分和营养分析

潘文石, Olav T.Oftedal, 朱小健, Sara Childs, 王大军, Devra G.Kleiman   

  1. 北京大学生命科学学院, 北京, 100871; Department of Zoological Research, National Zoological Park, Smithsonian Institution, Washington D.C. 20008 U.S.A.

Abstract: Milk samples of a wild female giant panda were collected from all the 4 nipples at 77 days postpartum in the Qinling Mountain area. At this lactation stage the giant panda milk averaged(32.0±2.1)% dry matter, (18.4±2.1)% fat, (8.34±0.16)% crude protein, (2.7±0.12)% sugar, and in two samples (7.6±0.6) kJ/g gross energy. The fat concentrations were very variable, with particularly high fat(25.9%) in milk from the nipple just suckled; the remaining nipples yielded milk containing 14.5%-19.3% fat. Protein accounts for about 22% of the energy in giant panda milk, which is higher than that of the American Black Bear(Ursus americanus)milk at the same lactation stage. This difference may due to the different selective pressure these two species faced during evolution.

Key words: Giant panda, milk, nutrition

关键词: 大熊猫, 奶样, 营养

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