Castellanos Zacarías, C.A., Ramón Ugalde, J.P., Loeza Concha, H.J., Zamora Bustillos, R., Pinzón López, L.L., Rodríguez Gutiérrez, G.I. and Domínguez Rebolledo, Álvaro E. 2023. Effect of two animal protein-free extenders on cryopreservation of Pelibuey and Blackbelly ram semen. Veterinaria México OA. 10, (Jun. 2023). DOI:https://doi.org/10.22201/fmvz.24486760e.2023.1022.