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OJVRTM
Online Journal of
Veterinary Research©
Volume 11 (2): 62-66, 2007.. Editors note: Extensively redacted 2018.
Auscultatory findings of cardiac murmurs in clinically healthy
dairy cattle
Rezakhani A, Zarifi
M.
Department
of Clinical Studies, School of Veterinary Medicine, Shiraz University, Shiraz,
71345, Iran
ABSTRACT
Rezakhani A, Zarifi M. Auscultatory findings of cardiac murmurs in clinically
healthy dairy cattle, Onl J Vet Res., 11 (2) 62-66,
2007. This
study was conducted on 300 clinically healthy Holstein cattle 1-12 months,
12-36 months and >36 months old. The cattle were auscultated on both sides
of the cardiac area of the chest and on mitral, aortic, pulmonary
and tricuspid valve areas by two clinicians with a Littman type stethoscope and
sensor stethoscope (meditron). Prevalence of heart
murmurs was 47.7%; diastolic murmurs 11.2% and systolic murmurs 88.8%. The
timing of 94.4% of murmurs was in early to early to
mid and intensity of 93% was grade 1/5 to grade 3/5. The points of maximal
intensity were 52.4%, 8.4%, 17.5% and 21.7% over pulmonic, aortic, mitral and
tricuspid valves, respectively. Cardiac murmurs in clinically healthy dairy
cattle are common and the majority are functional.
Key words: cattle,
cardiac, murmurs, heart.
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