1.
Morais RN de, Mucciolo RG, Viana WG. Reproductive biology of donkey. I. Testicular measurement and sexual behaviour at semen collection.
Braz. J. Vet. Res. Anim. Sci.
1993;30(1):47-50. doi:
10.11606/issn.1678-4456.bjvras.1993.52018