del Fava, Claudia, et al. “Reproductive Rates and Performance Traits in Beef Cattle Infected by Bovine Herpesvirus”. Brazilian Journal of Veterinary Research and Animal Science, vol. 43, no. 6, Dec. 2006, pp. 739-46, https://doi.org/10.11606/issn.1678-4456.bjvras.2006.26551.