2448-6760 2448-6760 S2448-67602020000300009 10.22201/fmvz.24486760e.2020.3.921 Mexico Mexico 00 09 2020 00 09 2020 7 3

1 1995 200-10 2 1995 3 Facultad de Medicina Veterinaria y Zootecnia 1999 4 5 1999 24 102-6 6 1988 7 1987 28 121-7 8 1997 9 1996 12 647-50