Macedo-Barragán, R.J., Arredondo-Ruiz, V. and Cervantes-Lechuga, A. 2016. Head and tail morphology of Pelibuey, Katahdin and Blackbelly rams in Colima, México. Veterinaria México OA. 3, 3 (Sep. 2016). DOI:https://doi.org/10.21753/vmoa.3.3.375.