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Fat-Pad Specific Effects of Lipectomy on Appetitive and Consummatory Ingestive Behaviors in Siberian Hamsters (Phodopus sungorus)

Johnson, Kelly Deshon
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Abstract

The aim of this experiment was to test whether LIPX-induced decreases in body fat affect appetitive (foraging effort and food hoarding) or consummatory (food intake) ingestive behaviors and whether the effects of LIPX on these behaviors is in turn affected by changes in energy expenditure produced by varying the amount of work required to obtain food. This was accomplished by housing male Siberian hamsters (Phodopus sungorus) in a foraging/hoarding apparatus where food pellets (75 mg) could be earned by completing various wheel running requirements. Requiring a foraging effort (10 revolutions/pellet) abolished the normal compensation of WAT mass by the non-excised WAT pads that typically follows IWATx or EWATx. After foraging, food hoarding was increased more than food intake when hamsters were required to forage for food (10 revolutions/pellet). The magnitude of the LIPX-induced lipid deficit (IWATx > EWATx) did not correspond to a proportional change in either appetitive or consummatory ingestive behaviors.

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Date
2006-06-09
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Research Projects
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Keywords
food intake, obesity, consummatory, appetitive, foraging, food hoarding
Citation
Johnson, Kelly Deshon (2006). Fat-Pad Specific Effects of Lipectomy on Appetitive and Consummatory Ingestive Behaviors in Siberian Hamsters (Phodopus sungorus). Georgia State University. https://doi.org/10.57709/1059220
Embargo Lift Date
2011-09-13
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