Electrocardiographic Reciprocal Complexes in Sows Grown in industrial conditions

Abstract

A total of 586 sows were studied by means of telemetric electrocardiography, 199 of them (33.96%) showed the presence of the pathological Q wave in their eCG. In 56 of them rC complexes were registered. sows were kept in individual pens during fertilization and furrowing. they were moved to a common pen after positive pregnancy tests. the additional ventricular contractions registered in eCG were of the Q/r complex type. these contractions were marked as rC complexes and were not followed by a compensatory pause. the reasons for their presence were not clarified. In the presence of the pathological Q wave and the reduction of r wave amplitude to hypokinetic stress. those changes depended on the rate of morphological damage of the heart and were recorded based on Q and r-wave amplitude. Along with those changes, a peculiar type of waves was registered in eCG and they will be discussed here below.