| fecal shedding of foodborne pathogens by florida-born heifers and steers in u.s. beef production segments. | the objective in this study was to assess breed effects in fecal prevalence of escherichia coli o157:h7 in heifers on a development program in florida and in their steer half siblings in stocker and feedlot phases in oklahoma. a secondary objective was to characterize fecal shedding of campylobacter and salmonella in subsets of the same samples. after weaning, heifers (n = 501; purebreds and f1 crosses of angus, brahman, and romosinuano) were preconditioned and placed in a local development prog ... | 2008 | 18468037 |