Resistance of purebred Brahman, Hereford, and Brahman times Hereford crossbred cattle to the lone star tick, Amblyomma americanum (Acarina: Ixodidae).
D000818:Animals; D001947:Breeding; D002417:Cattle / Q000276:immunology*; D002418:Cattle Diseases / Q000276:immunology; D005260:Female; D008297:Male; D013984:Tick Infestations / Q000276:immunology / Q000662:veterinary; D013987:Ticks