Consistent proportional macronutrient intake selected by adult domestic cats (Felis catus) despite variations in macronutrient and moisture content of foods offered

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• 作者：Adrian K. Hewson-Hughes (1)
  Victoria L. Hewson-Hughes (1)
  Alison Colyer (1)
  Andrew T. Miller (1)
  Simon R. Hall (1)
  David Raubenheimer (2)
  Stephen J. Simpson (3)
  
• 关键词：Macronutrient regulation ; Nutritional geometry ; Right ; angled mixture triangles ; Carnivore nutrition ; Domestic cat
• 刊名：Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology
• 出版年：2013
• 出版时间：May 2013
• 年：2013
• 卷：183
• 期：4
• 页码：525-536
• 全文大小：562KB
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  5. Hewson-Hughes AK, Hewson-Hughes VL, Miller AT, Hall SR, Simpson SJ, Raubenheimer D (2011) Geometric analysis of macronutrient selection in the adult domestic cat, / Felis catus. J Exp Biol 214:1039-051 CrossRef
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• 作者单位：Adrian K. Hewson-Hughes (1)
  Victoria L. Hewson-Hughes (1)
  Alison Colyer (1)
  Andrew T. Miller (1)
  Simon R. Hall (1)
  David Raubenheimer (2)
  Stephen J. Simpson (3)
  
  1. WALTHAM? Centre for Pet Nutrition, FreebyLane, Waltham-on-the-Wolds, Melton Mowbray, Leicestershire, LE14 4RT, UK
  2. Institute of Natural Sciences, Massey University, Albany, 0622, Auckland, New Zealand
  3. School of Biological Sciences and the Charles Perkins Centre, University of Sydney, Heydon-Laurence Building A08, Sydney, NSW, 2006, Australia
  
• ISSN：1432-136X

文摘

We investigated the ability of domestic cats to regulate the macronutrient composition of their diet when provided with foods that differed not only in macronutrient content but also in texture and moisture content, as typically found in the main forms of commercially manufactured cat foods. Cats were provided with foods in different combinations (1 wet?+?3 dry; 1 dry?+?3 wet; 3 wet?+?3 dry) in three separate experiments. Within each experiment cats were offered the wet and dry food combinations in two (na?ve and experienced) diet selection phases where all the foods were offered simultaneously, separated by a phase in which the foods were offered sequentially in 3-day cycles in pairs (1 wet with 1 dry). Using nutritional geometry we demonstrate convergence upon the same dietary macronutrient composition in the na?ve and experienced self-selection phases of each experiment as well as over the course of the 3-day cycles in the pair-wise choice phase of each experiment. Furthermore, even though the dietary options were very different in each of these experiments the macronutrient composition of the diets achieved across all experiments were remarkably similar. These results indicate that a mammalian obligate carnivore, the domestic cat, is able to regulate food selection and intake to balance macronutrient intake despite differences in moisture content and textural properties of the foods provided.