Morais, R. N. de, Mucciolo, R. G. and Viana, W. G. (1994) “Reproductive biology of donkey. III. pH, osmolality and eletrolytes concentration of the semen”, Brazilian Journal of Veterinary Research and Animal Science, 31(2), pp. 145-151. doi: 10.11606/issn.1678-4456.bjvras.1994.52060.