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R Plasmids in Pathogenic Enterobacteriaceae from Calves

  • John F. Timoney

Abstract

Pressure for selection of antibiotic resistant bacteria is greater in intensive calf raising than in any other livestock raising operation. The newborn calf is particularly vulnerable to enteric infections because it is often colostrum deprived, transported long distances without food, mixed with calves from other sources and therefore simultaneously stressed and exposed to a variety of pathogenic strains to which it may have no immunity. The crowded nature of the intensive rearing environment further facilitates spread of infection and favors accelerated feco-oral transfer of enteric pathogens in the group.

Keywords

Enteric Pathogen Phage Type Antibiotic Resistant Bacterium Antibiotic Usage Ampicillin Resistance 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1981

Authors and Affiliations

  • John F. Timoney
    • 1
  1. 1.Department of MicrobiologyN.Y. State College of Veterinary Medicine Cornell UniversityIthacaUSA

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