Y. KOSTOV and V. ALEXANDROVA
University of Forestry, Faculty of Veterinary Medicine, BG-1756 Sofia, Bulgaria
KOSTOV, Y. and V. ALEXANDROVA, 2011. Electrocardiographic reciprocal complexes in sows grown in industrial conditions. Bulg. J. Agric. Sci., 17: 122-125
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.