title: Evaluation of a visual sampling method used to estimate northern fowl mite, Ornithonyssus sylviarum (Acari: Macronyssidae), populations on caged laying hens.
mesh_terms: D000818:Animals; D002645:Chickens / Q000469:parasitology*; D004772:Entomology / Q000379:methods; D005260:Female; D008924:Mite Infestations / Q000469:parasitology / Q000662:veterinary*; D008925:Mites; D011201:Poultry Diseases / Q000469:parasitology*