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OJVR©
Online Journal of Veterinary
Research©
(Including Medical and
Laboratory Research)
Established 1994
ISSN 1328-925X
Volume
25 (7):473-480, 2021.
Heart rate and hematology before and after submaximal
exercise in athletic horses.
Mehdi Sakha
DVM PhD, Hasan Rahmani DVM.
Faculties
of Veterinary Science, Islamic Azad University, Tehran, Shahid
Bahonar University, Kerman, Iran
ABSTRACT
Sakha M, Rahmani H., Heart rate and hematology before and after submaximal
exercise in athletic horses., Onl J Vet Res., 25 (7):473-480, 2021. Heart rates (HR) of ~60 bpm 10 minutes
after intense exercise is a benchmark for performance in race horses. HR
before and after a 1600 mt race and hematology correlations
with performance in 19 race-horses is reported. Mean resting HR before race was
~36 bpm, reaching maximum of 132 bpm (P<0.05) during race. After race HR
fell 16% by 1st minute, 29% by 2 min and ~51% by 5 min to reach resting
rate of ~36 bpm by 60 minutes. However, 60% horses had HR of 60 bpm at 20 min
with only 21% reaching normal HR by 30 minutes. The mean values of PCV (paced
cell volume) and RBC (red blood cell) were 36.60± 3.3 % and 6.8± 0.88 M/ul at rest and 44.73± 4.7 % and 9.28± 1.32M/ul after exercise. We found that RBC were boosted ~30% (PCV)
and PCV ~20 by racing.
Key
words: Exercise, Horse, Heart, Hematocrit,
cardiac response.
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