Ontogenetic development of proline intestinal transport in the domestic fowl
DOI: 10.1080/00071669608417869
Title: Ontogenetic development of proline intestinal transport in the domestic fowl
Journal Title: British Poultry Science
Volume: Volume 37
Issue: Issue 2
Publication Date: May 1996
Start Page: 383
End Page: 394
Published online: 8 Nov 2007
ISSN: 0007-1668
Author: E. Gonzaleza & M. P. Vinardela
Affiliations:
a Department de Ciències Fisiològiques Humanes i de la Nutrició, Unitat de Fisiologia, Facultat de Farmàcia , Universitat de Barcelona , Av. Joan XXIII, s/n, 08028, Barcelona, Spain
Abstract: 1. The proline disappearance from the jejunal and ileal lumen of chickens aged from 1 day to 15 weeks were studied using a perfusion method "in vivo”. 2. A decrease in proline transport was observed from younger to older animals. The 2 intestinal segments showed different behaviours, the 1‐day and 1‐week‐old animals showed the same value in the jejunum, whereas in the ileum a progressive decrease in proline transport was observed from the first week of life.3. The differences observed in the 2 segments could be attributed to the different rates of growth of the jejunum and ileum with age; the jejunum showed a peak of growth in the second week of life whereas the ileum showed a peak of growth in the first week. proline transport in the jejunum decreased until the fifth week and remained constant thereafter.
Accepted: 29 Sep 1995

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