Dependence of sows` phenotypic consolidation of productivity on the reason of their culling due in index selection

Studies on determining the differences between sows, which were culled for various reasons, have been continued. The phenotypic consolidation coefficients are estimated on the main indicators of sow productivity (based on the standard deviation and the coefficient of variability). Different levels of consolidation have been determined for the groups of sows, culled for various reasons. Differences were found during the calculation of the consolidation of indicators for different mechanisms. In most cases, the highest values of the phenotypic consolidation coefficients were obtained from the index of the total number of farrows. According to the rest of the estimated values for different groups of culled sows, no specific dependency was found. Considerable differences between the groups according to the estimated indicators of the phenotypic consolidation coefficients were revealed when estimating the phenotypic consolidation coefficients based on the variability coefficients.