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Journal of Animal Science Abstract - Symposia

MEAT SCIENCE AND MUSCLE BIOLOGY SYMPOSIUM: Ecological and dietary impactors of foodborne pathogens and methods to reduce fecal shedding in cattle12

 

This article in JAS

  1. Vol. 92 No. 4, p. 1356-1365
     
    Received: Oct 25, 2013
    Accepted: Dec 14, 2013
    Published: November 24, 2014


    3 Corresponding author(s): todd.callaway@ars.usda.gov
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doi:10.2527/jas.2013-7308
  1. T. R. Callaway 3,
  2. T. S. Edrington* and
  3. D. J. Nisbet*
  1. Food and Feed Safety Research Unit, Southern Plains Agricultural Research Center, Agricultural Research Service, USDA, College Station, TX 77845

Abstract

Pathogenic bacteria can live asymptomatically within and on cattle and can enter the food chain but also can be transmitted to humans by fecal or direct animal contact. Reducing pathogenic bacterial incidence and populations within live cattle represents an important step in improving food safety. A broad range of preslaughter intervention strategies are being developed, which can be loosely classified as 1) directly antipathogen strategies, 2) competitive enhancement strategies (that use the microbiome’s competitive nature against pathogens), and 3) animal management strategies. Included within these broad categories are such diverse methods as vaccination against foodborne pathogens, probiotics and prebiotics, bacterial viruses (i.e., bacteriophages), sodium chlorate feeding, and dietary and management changes that specifically alter the microbiome. The simultaneous application of 1 or more preharvest strategies has the potential to reduce human foodborne illnesses by erecting multiple hurdles preventing entry into humans. However, economic factors that govern producer profitability must be kept in mind while improving food safety.

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