Effect of horn flies on weight gains of beef cattle.
D000818:Animals; D001835:Body Weight; D002417:Cattle / Q000254:growth & development*; D002418:Cattle Diseases / Q000503:physiopathology* / Q000517:prevention & control; D004175:Diptera; D004478:Ectoparasitic Infestations / Q000503:physiopathology / Q000662:veterinary*; D008297:Male