Standard electrocardiographic values in Holstein calves

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Abstract

This paper presents electrocardiographic values in 25 Holstein calves using the standard bipolar limbs leads (I, II and III), augmented unipolar limb leads (avL, avR and avF) and a bipolar chest lead (V10). Two groups with different ages were compared (newborn - 18 to 72 hours and calves - 27 to 33 days old). It was concluded that no differences between age groups in P, Q, R, S and T waves, in the PR, QRS, QT and ST intervals and in axis orientation were observed.

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Mendes, L. C. N., Camacho, A. A., Alves, A. L. G., Borges, A. S., Souza, R. C. A., & Ferreira, W. L. (2001). Standard electrocardiographic values in Holstein calves. Arquivo Brasileiro de Medicina Veterinaria e Zootecnia, 53(6), 641–644. https://doi.org/10.1590/S0102-09352001000600002

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