[The mange, an always present problem [disease of ruminants]]

acari della rogna acaricidas acaricide acaricides acaricidi control de enfermedades control de plagas controllo dei parassiti controllo delle malattie disease control disease surveys encuestas sanitarias gale in vivo experimentation indagini sulle malattie lutte antiravageur mange mange mites pest control rogna rumiante ruminant ruminanti ruminants sarna servicios veterinarios servizi veterinari sperimentazione in vivo veterinary services