Detection of enteric viruses in the feces of sows and their piglets using quantitative real-time RT-PCR. A) hepatitis E virus (HEV), B) encephalomyocarditis virus (EMCV), C) norovirus genogroup II (NoV GGII), D) astrovirus (AstV), E) group A rotavirus (rotavirus A). White columns represent control animals, grey columns represent the probiotic supplement group. (n = 6/time point for the piglets; n = 12/time point for the sows). GE - genome equivalents per g of feces. A Wilcoxon rank-sum test was carried out. *** indicate significant differences between control and probiotic group (p < 0.001).