Vietnam (1) Breeding (1) Carcasses (1) Genes (1) Multidrug resistance (1) Ciprofloxacin (1) Stumpwood (1) Veterinary medicine (1) Thyrotropin (1) Swine (1) Suidae (1) Slaughtering and slaughter-houses (1) Science (1) Proportion (1) Poultry (1) Feces (1) Farms (1) Farmhouses (1) Farm buildings (1) Escherichia coli (1) Contamination (Technology) (1) Biology (1) Animals (1) Sources (1) Sources (1) Transmission (1) Ursa Minor (1) Ganado--Sacrificio (1) Animales--Mejora genética (1) Tirotropina (1)