PMID: 9638076Jun 25, 1998Paper

Plasma aspartate aminotransferase and creatine kinase activities in thoroughbred racehorses in relation to age, sex, exercise and training

The Veterinary Journal
P A HarrisJ Gray

Abstract

In order to investigate the effect of age, sex and month on the response of plasma aspartate aminotransferase (AST) and creatine kinase (CK) to exercise, blood samples were collected once a month between March and September from a group of 40 2- and 3-year-old (2yo and 3yo) thoroughbred racehorses (kept under the same managemental regimen) at rest before exercise (PRE) and at 2 (2H) and 24 h (24H) post-exercise. The absolute change in activities between the 2H and PRE samples (2H delta) and the 24H and PRE samples (24H delta) was also calculated. Age had a significant effect on all measured and calculated parameters for colts (C), apart from 24H delta CK but showed no effect in the fillies (F). Sex only had a significant effect in the 3yo in the 2H delta CK. In the 2yo, significant effects of sex were found for both CK and AST in the PRE, 2H and 24H samples. The effect of month varied according to the classification group with only the 2yoC not showing any significant effect on any parameter. Fillies were, in general, more likely than colts to show greater than a twofold increase in CK activity at 2H post-exercise and the number of animals showing such an increase decreased as the season progressed. Very little change in AST ac...Continue Reading

References

Jul 1, 1975·Equine Veterinary Journal·M G Anderson
Mar 1, 1992·The British Veterinary Journal·P FayolleJ P Braun
Sep 1, 1991·Medicine and Science in Sports and Exercise·T G ManfrediW J Evans
Sep 1, 1988·Pflügers Archiv : European journal of physiology·G J AmelinkP R Bär

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Citations

Jan 4, 2013·Journal of Applied Animal Welfare Science : JAAWS·Witold Kȩdzierski, Michał Pluta
Feb 24, 2006·Journal of Child Psychology and Psychiatry, and Allied Disciplines·Helen Link Egger, Adrian Angold
Jan 30, 2020·The Veterinary Clinics of North America. Equine Practice·Samuel D A Hurcombe
Oct 4, 2021·Equine Veterinary Journal·Petra BuckleyKristopher J Hughes

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