Influence of Psoroptes ovis (Hering) (Acari: Psoroptidae) on the performance of beef steers.
D000818:Animals; D001835:Body Weight; D002417:Cattle; D002418:Cattle Diseases / Q000503:physiopathology*; D004435:Eating; D008297:Male; D008924:Mite Infestations / Q000503:physiopathology / Q000662:veterinary*