Evaluation of mass and selective metaphylaxis medication with florfenicol at feedlot entry as a tool against bovine respiratory disease under commercial conditions in spain

1. Martín, G.J.V.
2. Partida, E.L.
3. Villalobos, P.N.
4. López, C.M.
5. López-Guerrero, C.E.
6. Blanco, A.S.