Document Detail


Comparative ingestive mastication in domestic horses and cattle: a pilot investigation.
MedLine Citation:
PMID:  20662959     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
It is often assumed that horses chew food more intensively during ingestion than cattle, which - as ruminants - complete part of the mastication during rumination. This has been proposed as a reason for more robust mandibles, larger masseter insertion areas and larger masseter muscles in horses as compared to cattle and other grazing ruminants. In this study, we evaluate results of comparative feeding trials with three horses (338-629 kg) and three cows (404-786 kg), on four different roughages. Ingestion time (s/g dry matter) and chewing intensity (chews/g dry matter) differed among animals within a species, indicating an influence of body mass, and differed significantly between different forages. However, although numerical differences clearly suggest that horses have longer ingestion times and higher chewing intensities on high-fibre roughage than do cattle, this could not be proven in this dataset, most likely because of the small number of individuals sampled. Further studies are required to corroborate the suspected ingestive behaviour difference between equids and ruminants.
Authors:
C M Janis; E C Constable; K A Houpt; W J Streich; M Clauss
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of animal physiology and animal nutrition     Volume:  94     ISSN:  1439-0396     ISO Abbreviation:  J Anim Physiol Anim Nutr (Berl)     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-11-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101126979     Medline TA:  J Anim Physiol Anim Nutr (Berl)     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  e402-9     Citation Subset:  IM    
Copyright Information:
© 2010 Blackwell Verlag GmbH.
Affiliation:
Department of Ecology and Evolutionary Biology, Brown University, Providence, RI, USA.
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