title: Atrophic rhinitis in swine fattener herds. A field study of the spread of the disease with infected pigs bought at market.
abstract: In three different fattener herds pigs primarily AR infected as baby piglets were mixed in the fattening units with healthy pigs at an age of 11--13 weeks. Snout alterations were registered on cut snouts at a slaughter weight of about 70 kg. Severe AR was registered in the groups of primarily infected pigs (Tables I--III). The incidence of snout alterations was lower in the groups of pigs infected at an age of 11--13 weeks, but was much higher than in the groups of healthy control pigs or in the normal pig population in the region (Table IV). The results indicate that pigs infected at a rather late age in the fattening units can develop severe atrophic rhinitis.
mesh_terms: D000818:Animals; D009667:Nose Deformities, Acquired / Q000209:etiology / Q000662:veterinary; D012222:Rhinitis, Atrophic / Q000150:complications / Q000635:transmission / Q000662:veterinary*; D013552:Swine; D013553:Swine Diseases / Q000635:transmission*