Semen characteristics of captive common marmoset (Callithrix jacchus): a comparison of a German with a Brazilian colony - Valle, Rodrigo del Rio do; Valle, Cristiane Macedo del Rio do; Nichi, Marcilio; Muniz, José Augusto Pereira Carneiro; Nayudu, Penelope Lea; Guimaraes, Marcelo Alcindo de Barros Vaz (Journal of Medical Primatology, 2014)