Document Detail


Phytates reduce uptake of leucine and glutamate but not lysine and glucose from the intestinal lumen of chickens: short communication.
MedLine Citation:
PMID:  19149105     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
An investigation into the influence of phytates on the in situ absorption of amino acids (lysine, glutamate and leucine) and glucose from the intestinal lumen of 3-week-old chickens was carried out. Birds were anaesthetised and the intestines exteriorised. Uptake of 5 mM of each nutrient over a 4-min period was measured in the presence of four phytate concentrations (0, 50, 250 and 500 mM). Five birds were used for each nutrient at each concentration of phytate tested. Leucine uptake decreased linearly (P < 0.001) and that of glutamate showed a tendency to decrease (P = 0.055) as the phytate concentration increased. Absorption of lysine and glucose were unaffected by the presence of phytate. In conclusion, phytate in the small intestinal lumen exerted a depressive effect on the absorption of specific free amino acids from the lumen. Its depressive effect was greatest for leucine followed by glutamate, and phytate had little effect on the absorption of lysine.
Authors:
Edward M Onyango; Elikplimi K Asem; Olayiwola Adeola
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Acta veterinaria Hungarica     Volume:  56     ISSN:  0236-6290     ISO Abbreviation:  Acta Vet. Hung.     Publication Date:  2008 Dec 
Date Detail:
Created Date:  2009-01-19     Completed Date:  2009-02-19     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8406376     Medline TA:  Acta Vet Hung     Country:  Hungary    
Other Details:
Languages:  eng     Pagination:  511-4     Citation Subset:  IM    
Affiliation:
Department of Health Sciences, East Tennessee State University, Box 70673, Johnson City, TN 37604, USA. onyango@etsu.edu
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MeSH Terms
Descriptor/Qualifier:
Animal Feed
Animal Nutritional Physiological Phenomena
Animals
Chickens
Diet / veterinary
Glucose / metabolism*
Glutamic Acid / metabolism*
Intestines / metabolism
Leucine / metabolism*
Lysine / metabolism*
Phytic Acid / pharmacology*
Chemical
Reg. No./Substance:
50-99-7/Glucose; 56-86-0/Glutamic Acid; 56-87-1/Lysine; 61-90-5/Leucine; 83-86-3/Phytic Acid

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


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