Poult. Sci.
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Uni, Z
Right arrow Articles by Yahav, S
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Uni, Z
Right arrow Articles by Yahav, S
Poultry Science, Vol 80, Issue 4, 438-445
Copyright © 2001 by Poultry Science Association

Articles

Changes in growth and function of chick small intestine epithelium due to early thermal conditioning

Z Uni, O Gal-Garber, A Geyra, D Sklan, and S Yahav

Faculty of Agricultural, Food and Environmental Quality Sciences, Department of Animal Sciences, Rehovot, Israel. uni@agri.huji.ac.il

The effect of exposure to heat at 3 d of age on small intestine functionality and development was assayed by measuring villus size, proliferating enterocytes, and brush-border membrane (BBM) enzyme expression and activity. Results showed that thermal conditioning caused an immediate effect characterized by lowered triiodothyronine (T3) level, reduced feed intake, and depressed enterocyte proliferation and BBM enzyme activity. A second series of effects, observed 48 h posttreatment, was characterized by elevated T3, increased feed intake, increased enterocyte proliferation, and higher expression and activity of BBM enzymes. The association between ambient temperature, feed intake, growth rate, and plasma T3 levels was reflected in the structure and function of the intestinal tract. The results suggest that thermal conditioning at an early age influences T3 concentrations, which in turn alter the intestinal capacity to proliferate, grow, and digest nutrients. However, these experiments were not able to discriminate between effects due to feed intake and those due to thermal conditioning. The treatments modulated changes in the intestinal tract following thermal treatment.


This article has been cited by other articles:


Home page
 Poult. Sci.Home page
L. Star, E. Decuypere, H. K. Parmentier, and B. Kemp
Effect of Single or Combined Climatic and Hygienic Stress in Four Layer Lines: 2. Endocrine and Oxidative Stress Responses
Poult. Sci., June 1, 2008; 87(6): 1031 - 1038.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Poult. Res.Home page
A. Friedman
Oral Tolerance in Birds and Mammals: Digestive Tract Development Determines the Strategy
J. Appl. Poult. Res., January 1, 2008; 17(1): 168 - 173.
[Abstract] [Full Text] [PDF]

Home page
 Poult. Sci.Home page
R. Gonzalez-Esquerra and S. Leeson
Concentrations of Putrescine, Spermidine, and Spermine in Duodenum and Pancreas as Affected by the Ratio of Arginine to Lysine and Source of Methionine in Broilers Under Heat Stress
Poult. Sci., August 1, 2006; 85(8): 1398 - 1408.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Physiol. Regul. Integr. Comp. Physiol.Home page
C. Garriga, R. R. Hunter, C. Amat, J. M. Planas, M. A. Mitchell, and M. Moreto
Heat stress increases apical glucose transport in the chicken jejunum
Am J Physiol Regulatory Integrative Comp Physiol, January 1, 2006; 290(1): R195 - R201.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Physiol. Endocrinol. Metab.Home page
A. Collin, M. Taouis, J. Buyse, N. B. Ifuta, V. M. Darras, P. Van As, R. D. Malheiros, V. M. B. Moraes, and E. Decuypere
Thyroid status, but not insulin status, affects expression of avian uncoupling protein mRNA in chicken
Am J Physiol Endocrinol Metab, April 1, 2003; 284(4): E771 - E777.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2001 by the Poultry Science Association.