Gross pathological findings in sows of different parity, culled due to recurring swine urogenital disease (SUGD) in Kenya

In a large Kenyan production unit the urogenital organs and mammary glands of 771 sows, culled due to recurring swine urogenital disease (SUGD) were subjected to necropsy Necropsy findings were analysed separately according to parity group of the sows [parities 2 (n = 252); 3-5 (n = 250); and > 5 (n = 269)]. Sows of higher parities had more pathological changes in their ovaries, uteri, vaginas, cervices, urinary bladders, kidneys and mammary glands compared to parity 2 sows (P < 0.05 and P < 0.01, respectively). Parity 2 sows had more ovarian degeneration, mucosal hyperaemia, congestion in the bladder, and acute purulent exudative mastitis than parity > 5 sows (P < 0.05 and P < 0.01, respectively).