Response of large white turkeys to virginiamycin from day-old to slaughter.
Diets containing 0 or 22 mg of virginiamycin per kilogram were fed to 448 Nicholas Large White turkeys from day-old to slaughter at 16 (females) or 20 wk of age (males). Weight gain of males, but not females, fed treated diets increased significantly from 0 to 4 and 4 to 8 wk of age, but not in later periods. However, final weights of both sexes were increased by treatment with virginiamycin. Feed efficiency of treated birds increased to 8 wk of age but not overall. Mortality and carcass finish and fleshing scores were unaffected by the antibiotic treatment.
Salmon
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Research Station, Agriculture Canada, Swift Current, Saskatchewan.
Stevens
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D000818:Animals; D004435:Eating; D005260:Female; D008297:Male; D012737:Sex Factors; D013997:Time Factors; D014422:Turkeys / Q000254:growth & development*; D014769:Virginiamycin / Q000494:pharmacology*; D015430:Weight Gain / Q000187:drug effects*
D014769:Virginiamycin