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. [Internet]. 1993 Jun. 1 [cited 2024 May 5];30(1):47-50. Available from: https://www.revistas.usp.br/bjvras/article/view/52018