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Facial expressions and other behavioral responses to pleasant andunpleasant tastes in cats (Felis silvestris catus)
Linköping University, Department of Physics, Chemistry and Biology, Biology. Linköping University, Faculty of Science & Engineering.
AFB International, 3 Research Park Drive, St. Charles, MO 63304, USA.
AFB International, 3 Research Park Drive, St. Charles, MO 63304, USA.
AFB International, 3 Research Park Drive, St. Charles, MO 63304, USA.
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2016 (English)In: Applied Animal Behaviour Science, ISSN 0168-1591, E-ISSN 1872-9045, Vol. 181, 129-136 p.Article in journal (Refereed) Published
Abstract [en]

The goal of the present study was to assess how cats react to tastes previously reported to be preferredor avoided relative to water. To this end, the facial and behavioral reactions of 13 cats to differentconcentrations of l-Proline and quinine monohydrochloride (QHCl) as well as mixtures with differentconcentrations of the two substances were assessed using a two-bottle preference test of short duration.The cats were videotaped and the frequency and duration of different behaviors were analyzed. Significantdifferences in the cats’ behavior in response to the taste quality of the different solutions included,but were not limited to, Tongue Protrusions (p < 0.039), Mouth smacks (p = 0.008) and Nose Licks (p = 0.011)with four different stimulus concentrations. The cats responded to preferred taste by keeping their Eyeshalf-closed (p = 0.017) for significantly longer periods of time with four different stimulus concentrationscompared to a water control. When encountering mixtures containing l-Proline and QHCl the cats performedTongue protrusion gapes (p < 0.038) significantly more frequently with three different stimulusconcentrations compared to an l-Proline control. A stepwise increase in the concentration of l-Prolinefrom 5 mM to 500 mM in mixtures with 50 M QHCl did not overcome the negative impact of the bittertaste on intake. The results of the present study suggest that behavioral responses provide an additionaldimension and may be more informative than consumption data alone to assess whether cats perceivetastes as pleasant or unpleasant. Thus, the analysis of behavioral responses to different taste qualitiesmay be a useful tool to assess and improve the acceptance of commercial food by cats.

Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 181, 129-136 p.
Keyword [en]
Behavior, Cat, Felis silvestris catus, Taste reactivity, l-Proline, Quinine monohydrochloride
National Category
Neurosciences
Identifiers
URN: urn:nbn:se:liu:diva-130502DOI: 10.1016/j.applanim.2016.05.031OAI: oai:DiVA.org:liu-130502DiVA: diva2:952059
Available from: 2016-08-11 Created: 2016-08-11 Last updated: 2016-08-16

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Hanson, MichaelaLaska, Matthias
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