[1]
Morais, R.N. de et al. 1993. Reproductive biology of donkey. I. Testicular measurement and sexual behaviour at semen collection. Brazilian Journal of Veterinary Research and Animal Science. 30, 1 (Jun. 1993), 47–50. DOI:https://doi.org/10.11606/issn.1678-4456.bjvras.1993.52018.