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A New Method of Determining Diets of Rodents

Noga Kronfeld and Tamar Dayan
Journal of Mammalogy
Vol. 79, No. 4 (Nov., 1998), pp. 1198-1202
DOI: 10.2307/1383011
Stable URL: http://www.jstor.org/stable/1383011
Page Count: 5
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
A New Method of Determining Diets of Rodents
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Abstract

Diets of rodents often have been studied by analysis of feces or stomach contents. Analysis of feces is highly inaccurate because of differential digestion, and the analysis of stomach contents requires the sacrifice of large numbers of individuals and cannot be used for some species because of conservation considerations. We developed a new method for determining diets of rodents by stomach pumping that is as accurate as previously used analysis of stomach contents. Animals are not sacrificed, so it is possible to collect more than one sample from each individual and study a population of rodents for a long time without harming it. It also allows studies that would otherwise be legally or morally impossible.

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