A two-year study on the anthelmintic effect of a pregrazing treatment with the morantel sustained release bolus in first season grazing cattle in Sweden

agentes nocivos alimentation alimentation des animaux animal animal domestique animal feeding animal nuisible animal pour cuirs et peaux animales animales de carne animales nocivos animals anthelminthique anthelmintics artiodactyla artiodactyle aschelminthes bovidae bovide bovin bovine bovines cattle domestic animals drugs escandinavia europa europe facteur de production facteur nuisible feeding feeding systems ganado ganado bovino grazing grazing lands helminthe helminths helmintos injurious factors invertebrados invertebrates land livestock mammals meat animals medicamentos nematode nematodes nematodos noxious animals nutrition organisme nuisible pastoreo pests plagas production factors rumiante ruminant ruminants scandinavia scandinavie technique d'alimentation terre tierras tierras de pastoreo unrestricted feeding vertebrados vertebrates vertebre zootechnie zootechny zootecnia