Food selection by the white-footed mouse (Peromyscus leucopus) on the basis of energy and protein contents
Food selection by the white-footed mouse (Peromyscus leucopus) on the basis of energy and protein contents
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DOI：
10.1139/z01-015
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发表时间：
2001-04
影响因子：
1.4
通讯作者：
C. Lewis;T. Clark;T. Derting
中科院分区：
文献类型：
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作者：
C. Lewis;T. Clark;T. Derting
研究了白足鼠能量和蛋白质含量对食物选择的综合影响。我们的目标是确定食物成分水平的变化如何影响食物对小鼠的整体吸引力，以及在选择膳食蛋白质与能量相比时是否进行了权衡。我们在实验室和田间进行了食物选择试验，使用含有不同能量和蛋白质水平组合的食物。在实验室中，白足拟杆菌可以在高能量和低能量食物之间选择，同时蛋白质水平保持不变，也可以在高蛋白和低蛋白食物之间选择，同时能量水平保持不变。实地研究的目的是同时提供能量和蛋白质的所有四种组合。我们还在实验室中使用成对食物选择测试来测试蛋白质的首选水平。在实验室和田间试验中，P.leucopus选择了高能量的食物，这些食物蛋白质含量低，...
We studied the combined effects of energy and protein contents on food selection by the white-footed mouse, Peromyscus leucopus. Our objective was to determine how variation in levels of a food component affected the overall attractiveness of a food to the mice and whether trade-offs are made in selecting dietary protein compared with energy. We conducted food-selection tests in the laboratory and field using foods containing different combinations of energy and protein levels. In the laboratory, P. leucopus were offered a choice between a high-energy and a low-energy food with the protein level held constant and between a high-protein and a low-protein food with the energy level held constant. The field study was set up to offer an encounter with all four combinations of energy and protein simultaneously. We also tested for preferred levels of protein using pairwise food-selection tests in the laboratory. In the laboratory and field tests, P. leucopus selected high-energy foods that were low in protein, ...