Portion size and meal consumption in domesticated dogs: An experimental study.
Animals
Dogs
Feeding behaviour
Food intake
Portion size
Journal
Physiology & behavior
ISSN: 1873-507X
Titre abrégé: Physiol Behav
Pays: United States
ID NLM: 0151504
Informations de publication
Date de publication:
15 05 2019
15 05 2019
Historique:
received:
19
10
2018
revised:
22
02
2019
accepted:
24
02
2019
pubmed:
1
3
2019
medline:
6
5
2020
entrez:
1
3
2019
Statut:
ppublish
Résumé
Increases in food portion sizes have been identified as a possible contributor to the increased prevalence of obesity in humans. However, little is known about the origin of behavioural tendencies to overeat from larger portion sizes or whether other non-human animals are affected by meal portion size. In the present experimental study, we examined the effect that larger portion sizes have on meal consumption among domesticated dogs (N = 32). Dogs were fed three meals that varied in size on different occasions (150%, 200% and 300% of usual portion size). A repeated measures design was used and food consumption was measured for each meal. Portion size positively affected food consumption, with dogs eating significantly more food as the portion size of meal increased. The effect of portion size on food consumption was also observed when the dogs that finished all available food were excluded from analyses, however not among dogs who did not finish any of the meals. We conclude that the influence larger portions have on food consumption observed in humans is also observed in domesticated dogs. However, it is unclear whether portion size directly biases the amount of food dogs choose to consume, as has been suggested in humans. Further research is now warranted to examine commonalities between human and non-human animal eating behaviour to understand shared behavioural tendencies and their origins.
Identifiants
pubmed: 30817974
pii: S0031-9384(18)30922-3
doi: 10.1016/j.physbeh.2019.02.034
pmc: PMC6488012
pii:
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
174-179Subventions
Organisme : Medical Research Council
ID : MR/N000218/1
Pays : United Kingdom
Informations de copyright
Copyright © 2019 The Authors. Published by Elsevier Inc. All rights reserved.
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