Prevalence of antibodies and risk factors to bovine viral diarrhea in non-vaccinated dairy cattle from southern Ecuador

1. Herrera-Yunga, V.
2. Labanda, J.
3. Castillo, F.
4. Torres, A.
5. Escudero-Sanchez, G.
6. Capa-Morocho, M.
7. Abad-Guamán, R.