Document Detail

Effect of a soluble polysaccharide (carboxy methyl cellulose) on the physico-chemical conditions in the gastrointestinal tract of broilers.
MedLine Citation:
PMID:  8156435     Owner:  NLM     Status:  MEDLINE    
1. The effects of an indigestible soluble polysaccharide (carboxy methyl cellulose: CMC) on broiler performance (body weight gain, food and water intake) and on chyme characteristics (moisture content, viscosity, pH, osmolality and retention time) in broilers were studied. 2. In semi-synthetic diets 0, 5.0 and 10.0 g/kg of cellulose was replaced by CMC on weight basis. These diets were fed to male broilers from 3 to 5 weeks of age. 3. When 10.0 g/kg CMC was included in the diet, food intake and body weight gain were reduced, compared to the 0, and 5.0 g/kg CMC diets. Food:gain ratio and water intake were increased at each CMC concentration. The significant quadratic response showed an increased response per 5.0 g/kg dietary CMC at the higher CMC concentration. 4. The viscosity in the supernatant of the chyme was linearly increased in all intestinal segments by CMC. A quadratic increase was observed in the crop. In the lower ileum, differences between the 5.0 and 10.0 g/kg CMC diets were not significant. 5. CMC increased the mean retention time of chromium in the duodenum and in the upper jejunum, and reduced the maximal rate of marker excretion. The transit time (first appearance of the marker in the excreta), however, was significantly reduced at the highest CMC concentration. 6. The osmolality of the intestinal fluid decreased less as the chyme moved from the duodenum into the lower ileum, with increasing concentrations of CMC. 7. The ileal pH was reduced linearly by the CMC content of the diet. 8. Based on a higher moisture content of the chyme in the CMC-fed birds, and the higher jejunal and ileal osmolarities in those birds, it was concluded that the efficiency of both digestion and absorption was reduced by CMC inclusion in broiler diets.
J D van der Klis; A van Voorst; C van Cruyningen
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  British poultry science     Volume:  34     ISSN:  0007-1668     ISO Abbreviation:  Br. Poult. Sci.     Publication Date:  1993 Dec 
Date Detail:
Created Date:  1994-05-18     Completed Date:  1994-05-18     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  15740290R     Medline TA:  Br Poult Sci     Country:  SCOTLAND    
Other Details:
Languages:  eng     Pagination:  971-83     Citation Subset:  IM    
Spelderholt Centre for Poultry Research and Information Services, Agricultural Research Department (DLO-NL), Beekbergen, The Netherlands.
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MeSH Terms
Carboxymethylcellulose / pharmacology*
Chickens / physiology*
Digestive System / chemistry,  drug effects*,  metabolism
Gastrointestinal Contents / chemistry
Hydrogen-Ion Concentration
Osmolar Concentration
Viscosity / drug effects
Weight Gain / drug effects
Reg. No./Substance:

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