Fat indices of arctic foxes Alopex lagopus in Svalbard

We determined the validity of water content, rump fat thickness, a subjective fat index, a kidney fat index, and an index based on total body weight (TBW) and the hind foot length (HFL) in order to predict lipid content of arctic foxes Alopex lagopus. The total fat content was either determined by e...

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Bibliographic Details
Main Authors: Pål Prestrud, Caroline M. Pond
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Published: 2003
Subjects:
Key words
Arctic fox
body composition
fat indices
Arctic
Svalbard
Alopex lagopus
Arctic Fox
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.317.9492
http://www.wildlifebiology.com/Downloads/Article/410/En/9_3_prestrud.pdf
Description
Summary:We determined the validity of water content, rump fat thickness, a subjective fat index, a kidney fat index, and an index based on total body weight (TBW) and the hind foot length (HFL) in order to predict lipid content of arctic foxes Alopex lagopus. The total fat content was either determined by extracting lipid from minced carcasses (N = 75) or by dissecting all visible adipose tissue (N = 35). Water content and rump fat thickness proved to be the best predictors of fat content in arctic foxes. The ratio TBW/HFL was also a reliable index and should be a convenient and practicable way of estimating the condition of live foxes. A subjective fat index could be applied when divided into three categories, whereas the kidney fat index was not a reliable predictor of lipid content of arctic foxes.

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