Document Detail

Quantitative buffy coat analysis related to adrenocortical function in horses during a three-day event competition.
MedLine Citation:
PMID:  1910239     Owner:  NLM     Status:  MEDLINE    
This study was carried out to investigate stress induced in a cross-country by measuring plasma cortisol and to compare the changes in cortisol level with the leucocytic changes measured with the quantitative buffy coat (QBC) analysis, which is a new method applicable in field conditions for the evaluation of haematological parameters in horses. Seven healthy horses competing in a national three-day event were investigated. Venous blood was sampled under resting condition, 2 min and 180 min after the completion of the cross-country and analysed for haematological parameters, plasma cortisol, protein and lactate levels. Immediately after the event, there was a significant increase in all values except in the granulocytes (Gr) to lymphocytes-monocytes (LM) ratio. 180 min after the event, all the parameters returned to their resting levels while white blood cells (WBC), Gr and Gr/LM ratio were significantly higher with respect to their resting values. A high correlation (r = 0.82) was found between the relative increase in plasma cortisol levels 2 min after exercise and the relative increase in Gr/LM 180 min after exercise. Therefore it was concluded that the Gr/LM ratio measured 180 min after exercise with the QBC analysis is a reliable index to estimate the plasma cortisol levels measured 2 min after exercise. This new technique could consequently be used in order to evaluate, in field conditions, the exercise-induced stress.
A Linden; T Art; H Amory; A M Massart; C Burvenich; P Lekeux
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Zentralblatt für Veterinärmedizin. Reihe A     Volume:  38     ISSN:  0514-7158     ISO Abbreviation:  Zentralbl Veterinarmed A     Publication Date:  1991 Jun 
Date Detail:
Created Date:  1991-10-24     Completed Date:  1991-10-24     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0331323     Medline TA:  Zentralbl Veterinarmed A     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  376-82     Citation Subset:  IM    
Laboratory for Functional Investigation, Faculty of Veterinary Medicine, University of Liège, Belgium.
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MeSH Terms
Adrenal Cortex / physiology*
Horses / blood*
Hydrocortisone / blood*
Leukocyte Count / veterinary
Physical Exertion / physiology*
Reg. No./Substance:

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

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