Document Detail


Digesta retention and fibre digestion in brushtail possums, ringtail possums and rabbits.
MedLine Citation:
PMID:  1976477     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
1. Mean retention times (MRTs) of fluid (marked with Co-EDTA), fine particles (mordanted with Yb) and large particles (mordanted with Cr) were measured in brushtail possums (Trichosurus vulpecula), ringtail possums (Pseudocheirus peregrinus) and laboratory rabbits fed semipurified diets. 2. In brushtail possums there were no significant differences in MRT among the three digesta markers. 3. In ringtail possums MRTs of the fluid and fine particle markers were approximately twice that of the large particle marker, indicative of selective retention of both fluid and fine particles in the caecum. 4. In the rabbit MRT of fine particles was also greater than that of large particles, again indicative of selective retention of fine particles in the caecum. 5. Fibre digestibility was greater in the rabbits than in the ringtail possums, and greater for neutral-detergent fibre (including agar) but less for acid-detergent fibre in the rabbits than in the brushtails. Differences in fibre digestibility between brushtails and rabbits were explained by differences in patterns of digesta flow. However, the higher digestibilities of fibre in the rabbits than in the ringtail possums could not be explained on a similar basis.
Authors:
E Sakaguchi; I D Hume
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Comparative biochemistry and physiology. A, Comparative physiology     Volume:  96     ISSN:  0300-9629     ISO Abbreviation:  Comp Biochem Physiol A Comp Physiol     Publication Date:  1990  
Date Detail:
Created Date:  1990-11-05     Completed Date:  1990-11-05     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  1276312     Medline TA:  Comp Biochem Physiol A Comp Physiol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  351-4     Citation Subset:  IM    
Affiliation:
School of Biological Sciences, University of Sydney, NSW, Australia.
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MeSH Terms
Descriptor/Qualifier:
Animals
Biological Markers
Body Weight
Diet
Dietary Fiber / metabolism*
Digestive System / metabolism*
Digestive System Physiological Phenomena
Eating
Opossums / metabolism*
Rabbits / metabolism*
Chemical
Reg. No./Substance:
0/Biological Markers

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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