Brown, Geoffrey JamesNothling, Johan OlivietteDe Cramer, Kurt Guido Mireille2022-12-012022-12-012021-10Brown, G.J., Nöthling, J.O., & De Cramer, K.G.M. (2021). Canine-specific tail-in, head-out sperm agglutination. Reproduction in Domestic Animals, 56, 1363–1365. https://doi.org/10.1111/rda.13992.0936-6768 (print)1439-0531 (online)10.1111/rda.13992https://repository.up.ac.za/handle/2263/88585An interesting pattern of tail-in, head-out sperm agglutination was identified in a Brucella canis seronegative subfertile dog. Centrifuged seminal plasma from this dog could induce a similar pattern of agglutination in six other dogs, but not in ejaculates from a single stallion and two rams. The agglutination pattern was short-lived and appeared to depend on motility of spermatozoa, although intensity of agglutination may have been affected by concentration of agglutinating factor.en© 2022 Wiley-VCH GmbH. This is the pre-peer reviewed version of the following article:Canine-specific tail-in, head-out sperm agglutination. Reproduction in Domestic Animals, 56, 1363–1365, 2021. https://doi.org/10.1111/rda.13992. The definite version is available at http://wileyonlinelibrary.com/journal/rda.AgglutinationCanineSpermatozoaSperm agglutinationPostprint Article