SHEHAB AHMED, A. Effectof adding of vitamin b12 to tris extender and cooling period on the sperms viablilty for awassi rams. Journal of Kerbala for Agricultural Sciences, [S. l.], v. 4, n. 2, p. 59–70, 2017. DOI: 10.59658/jkas.v4i2.182. Disponível em: http://journals.uokerbala.edu.iq/index.php/Agriculture/article/view/182. Acesso em: 16 may. 2024.