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Unlabelled: In a Slowakian indoor pig production unit, with high prevalence of vaginal-vulval discharges, the sows were subjected one day prefarrowing to urine analysis. Sows suffering urinary tract infection (UTI) were assigned to an UTI group (group 1, n = 384), the remaining sows were classified as free of UTI and were assigned to group 2 (n = 1099). Total born litter size, liveborn litter size, weaning litter size and the occurrence of periparturient diseases, reasons for sow cullings at weaning, subsequent weaning to estrus intervals, conceptions- and farrowing rate, next total born- and lifeborn litter size and the occurrence of periparturient diseases were evaluated. UTI having sows had smaller (p < 0.05) total born litter size (11.71 +/- 1.11) when compared to the healthy animals (12.97 +/- 1.25). Liveborn litter size was significantly (p < 0.01) lower in group 1 (10.21 +/- 0.81 vs. group 2: 11.31 +/- 1.21). The occurrence of periparturient diseases revealed highly significant (p < 0.001) differences between the groups (group one 26.24% vs. group two 4.64%). Weaning litter size showed significant (p < 0.05) differences between group 1 (9.21 +/- 1.02) and 2 (10.11 +/- 0.37). More (p < 0.05) sows were culled post-weaning in the UTI group, compared to the healthy animals. Causes of post-weaning cullings differed between the groups: all sows of the group one had the pathological signs of swine urogenital disease at culling, while the majority of sows of the group 2 were culled due to locomotor problems and chronic mastitis. Subsequent weaning to estrus intervals, conceptions-, and farrowing rate and next total born litter size differed significantly (p < 0.05) between the groups, next lifeborn litter size (p < 0.01) and the occurrence of periparturient diseases (p < 0.001) were high significantly better in the healthy than in the UTI suffering group of sows., Implications: antepartal UTI might be the sign of swine urogenital disease and might negatively influence the sows reproductive performance.