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  • Title: Fecal shedding in cattle inoculated with Escherichia coli O157:H7 and fed corn or wheat distillers' dried grain with solubles.
    Author: Hallewell J, Barbieri LR, Thomas JE, Stanford K, McAllister TA.
    Journal: J Food Prot; 2013 Jan; 76(1):114-8. PubMed ID: 23317865.
    Abstract:
    Feeding corn dried distillers' grain with solubles (DDGS) has been linked to increased fecal shedding of Escherichia coli O157:H7 in cattle. A study was conducted to compare the impact of three diets containing (dry matter basis) 40% corn DDGS, 40% wheat DDGS, or 20% corn and 20% wheat mixed DDGS to a standard barley grain finishing diet on fecal shedding in cattle challenged with a 10(10) CFU mixture of four nalidixic acid-resistant E. coli O157:H7 strains. Rectal grab samples (n = 544) were collected over 70 days and screened for E. coli O157:H7 by direct plating and immunomagnetic bead separation. Feeding diets containing DDGS had no effect (P > 0.05) on the intensity or duration of fecal shedding of E. coli O157:H7 compared with the standard barley grain finishing diet.
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