[Relations between man and animal, the case of the swine]

agricoltori agriculteur agricultores allevamento zootecnico intensivo animal welfare behaviour bienestar animal cerdas comportamento comportamiento comportement conduite du troupeau crianza intensiva farmers gestione del bestiame intensive husbandry livestock management manejo del ganado piggeries pocilga porcherie porcilaie rendement rendimento rendimiento scrofe sows truie yields