J. Anim 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 Minton, J. E.
Right arrow Articles by Blecha, F.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Minton, J. E.
Right arrow Articles by Blecha, F.

Journal of Animal Science, Vol 68, Issue 10 3145-3151, Copyright © 1990 by American Society of Animal Science

JOURNAL ARTICLE

Effect of acute stressors on endocrinological and immunological functions in lambs

J. E. Minton and F. Blecha
Dept. of Anim. Sci. and Ind., Kansas State University, Manhattan 66506.

Lambs were used to evaluate the effect of acute heat stress (HS) or restraint and isolation stress (RIS) on endocrinological and immunological functions. In Exp. 1, lambs were exposed to HS (35 degrees C) and control lambs (CN) were exposed to 21 degrees C for 24 h in two replicates (n = 8 lambs total per treatment). Samples of serum were obtained at frequent intervals for evaluation of cortisol; whole blood was obtained for total and differential leukocyte numbers and lymphocyte blastogenic function. The time-trends for cortisol between HS and CN lambs were different following treatment (P less than .005), but neither leukocyte numbers nor lymphocyte blastogenesis in response to mitogens were affected by acute exposure to the elevated ambient temperature. In Exp. 2, lambs (n = 6 per treatment) were given a 6-h RIS treatment and control lambs remained in their home stanchions (CON). Plasma and serum were obtained frequently during treatment and continued until 24 h after the onset of treatment. Plasma was evaluated for adrenocorticotropic hormone (ACTH) and serum was assayed for cortisol. Samples of whole blood also were obtained before and at 6, 12 and 24 h after the onset of treatment for determination of total and differential leukocyte numbers and lymphocyte blastogenic responses to mitogens. Both ACTH and cortisol were elevated in response to RIS; the profiles of these hormones over the 24-h bleeding period differed for RIS and CON lambs (P less than .001).(ABSTRACT TRUNCATED AT 250 WORDS)


This article has been cited by other articles:


Home page
 J ANIM SCIHome page
B. G. Kim, M. D. Lindemann, and G. L. Cromwell
The effects of dietary chromium(III) picolinate on growth performance, blood measurements, and respiratory rate in pigs kept in high and low ambient temperature
J Anim Sci, May 1, 2009; 87(5): 1695 - 1704.
[Abstract] [Full Text] [PDF]

Home page
 J ANIM SCIHome page
M. C. Hickey, M. Drennan, and B. Earley
The effect of abrupt weaning of suckler calves on the plasma concentrations of cortisol, catecholamines, leukocytes, acute-phase proteins and in vitro interferon-gamma production
J Anim Sci, November 1, 2003; 81(11): 2847 - 2855.
[Abstract] [Full Text] [PDF]

Home page
 J ANIM SCIHome page
G. Kannan, T. H. Terrill, B. Kouakou, S. Gelaye, and E. A. Amoah
Simulated preslaughter holding and isolation effects on stress responses and live weight shrinkage in meat goats
J Anim Sci, July 1, 2002; 80(7): 1771 - 1780.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1990 by the American Society of Animal Science.