Nogueira Filho, J. C. M., Lucci, C. de S., Melotti, L., Oliveira, M. E. M. de, Lima, C. G. de, & Cunha, J. A. da. (1992). Differencial rumen protozoa counting from steers fed Napier elephant grass (Pennisetum purpureum Schum) at different maturity stages. Brazilian Journal of Veterinary Research and Animal Science, 29(2), 215-221. https://doi.org/10.11606/issn.1678-4456.bjvras.1992.51987