title: Effect of the northern fowl mite, Ornithonyssus sylviarum (Canestrini and Fanzago) on White Leghorn roosters.
mesh_terms: D000818:Animals; D001835:Body Weight; D002645:Chickens; D004906:Erythrocyte Count; D006400:Hematocrit; D008297:Male; D008924:Mite Infestations / Q000097:blood / Q000469:parasitology / Q000662:veterinary*; D011201:Poultry Diseases / Q000097:blood / Q000469:parasitology; D013094:Spermatozoa / Q000166:cytology; D013739:Testosterone / Q000097:blood
chemical_list: D013739:Testosterone