TY - JOUR AU - Lugar, DW AU - Ragland, D AU - Stewart, KR TI - Influenza outbreak causes reduction in semen quality of boars T2 - Journal of Swine Health and Production JF - Journal of Swine Health and Production J2 - JSHAP SN - 1537-209X DP - American Association of Swine Veterinarians PB - American Association of Swine Veterinarians DA - 2017/Nov// PY - 2017 VL - 25 M1 - 6 IS - 6 M2 - 303 SP - 303-307 L2 - https://www.aasv.org/shap/issues/v25n6/v25n6p303.html UR - https://www.aasv.org/shap/abstracts/abstract.php?v25n6p303 L1 - https://www.aasv.org/shap/issues/v25n6/v25n6p303.pdf KW - swine KW - influenza A virus KW - boar KW - semen quality N2 - An influenza outbreak occurred at Purdue University’s swine barn, resulting in infection of 28 boars with influenza A virus (H3N2) and causing the death of two boars. The 28 boars, approximately 35 weeks of age, were enrolled in a study at the time of the outbreak and the case report herein describes the effects of the unintended influenza outbreak on sperm production. Semen was collected from the boars once a week and evaluated for total sperm production and concentration, semen volume, and relative motility. Compared to previous collections, total sperm production was substantially decreased (26% reduction) approximately 4 weeks after the first observed clinical signs and remained low for 6 subsequent weeks. Semen production then returned to pre-outbreak levels and was maintained for the duration of the observation period. Sperm motility and percent normal sperm production were also slightly reduced 2 weeks after infection. ER -