Browsing by Author "Walker, Callie Elizabeth"

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Effects of Ractopamine hydrochloride are not confined to Mammalian tissue: evidence for direct effects of Ractopamine hydrochloride supplementation on fermentation by ruminal microorganisms

Walker, Callie Elizabeth (Kansas State University, 2009)

Beta-adrenergic agonists, which are synthetic catecholamines, increase rate of gain, improve feed efficiency, and decrease carcass fat, when fed to cattle before slaughter. However, little attention has been given to the ...
Escherichia coli O157:H7 in beef cattle: prevalence in gut contents at slaughter and the effect of neomycin supplementation in feed on fecal shedding in experimentally inoculated cattle

Walker, Callie Elizabeth (Kansas State University, 2008)

Escherichia coli O157:H7 is a food-borne pathogen that causes hemorrhagic enteritis in humans. Cattle are asymptomatic carriers and their feces are the major source of infection. The objective of the first study was to ...

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