Effect of vaccination against Mycoplasma hyopneumoniae in pig herds with an all-in/all-out production system

aetiology animal production carcass composition cerdo composition de la carcasse cost benefit analysis costos costs disease prevalence drugs economia economics economie engorde engraissement etiologia etiologie fattening feed conversion efficiency gain de poids ganancia de peso immunologie immunology lesiones lesions medicamentos mortalidad mortalite mortality mycoplasma hyopneumoniae pathologie pathology patologia pneumonia pneumonie porcin production animale serology swine vaccin vaccination vaccines vacuna weight gain