Monitoring the occurrence of patens foramen ovale in fattening swine breeds continuation

The occurrence of foramen ovale patens (FOP) was investigated in 96 hearts taken from the Slovak meat-type (SM), 38 hearts from Yorkshire (YO), 51 hearts from Slovak meat-type x Yorkshire (SM x YO), 43 hearts from Pietrain x Yorkshire (PN x YO) and 45 hearts from Pietrain x Slovak meat-type (PN x SM) breeds. The investigation was done at the Station for Research and Meat Quality Evaluation. We determined the presence of FOP only in the hearts collected from SM in 7 cases, which is 13.7% of the occurrence, and in the PN x SM in 4 cases (11.2%). We did not observe any occurrence of FOP in the other investigated breeds. All of the investigated positive cases of FOP were in the male breeds of the SM. In the cross breeds of PN x SM two positive cases of FOP were found in both sexes. As far as the size of the FOP is concerned, there have been documented 2mmdiameter in four cases and 3mmin three cases in the SM breeds. On the other hand, in the PN x SM cross breeds neither case had more than 2 mm in size. After camparing these results with our previous work, we decided further to investigate the occurrence of these heart defects at the line level of each meat breed