MORAIS, R. N. de; MUCCIOLO, R. G.; VIANA, W. G. Reproductive biology of donkey. I. Testicular measurement and sexual behaviour at semen collection. Brazilian Journal of Veterinary Research and Animal Science, [S. l.], v. 30, n. 1, p. 47-50, 1993. DOI: 10.11606/issn.1678-4456.bjvras.1993.52018. Disponível em: https://www.revistas.usp.br/bjvras/article/view/52018. Acesso em: 29 nov. 2022.