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VetMed Resource

Veterinary information to support practice, based on evidence and continuing education

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Abstract

Direct-fed microbials (DFM) have been employed in ruminant production for over 30 yr. Originally, DFM were used primarily in young ruminants to accelerate establishment of the intestinal microflora involved in feed digestion and to promote gut health. Further advancements led to more sophisticated...

Author(s)
McAllister, T. A.; Beauchemin, K. A.; Alazzeh, A. Y.; Baah, J.; Teather, R. M.; Stanford, K.
Publisher
Agricultural Institute of Canada, Ottawa, Canada
Citation
Canadian Journal of Animal Science, 2011, 91, 2, pp 193-211
Abstract

The objectives of this study were to estimate the prevalence of antimicrobial resistance (AMR) and to investigate the associations between exposures to antimicrobial drugs (AMDs) and AMR in fecal non-type specific Escherichia coli (NTSEC) recovered from a large population of feedlot cattle....

Author(s)
Benedict, K. M.; Gow, S. P.; McAllister, T. A.; Booker, C. W.; Hannon, S. J.; Checkley, S. L.; Noyes, N. R.; Morley, P. S.
Publisher
Public Library of Sciences (PLoS), San Francisco, USA
Citation
PLoS ONE, 2015, 10, 12, pp e0143995
Abstract

A 3-year (2009 to 2011) grazing study was conducted to assess the effects of purple prairie clover (PPC; Dalea purpurea Vent) on fecal shedding of total Escherichia coli in cattle. Three pasture types were used in the experiment: bromegrass (Check), mixed cool season grasses with PPC (Simple), and...

Author(s)
Jin, L.; Wang, Y.; Iwaasa, A. D.; Li, Y.; Xu, Z.; Schellenberg, M. P.; Liu, X. L.; McAllister, T. A.; Stanford, K.
Publisher
International Association for Food Protection, Des Moines, USA
Citation
Journal of Food Protection, 2015, 78, 8, pp 1434-1441
Abstract

Pooled feces collected over two years from 1749 transport trailers hauling western-Canadian slaughter cattle were analysed by PCR for detection of Escherichia coli serogroups O26, O45, O103, O111, O121, O145, and O157. Sequential immunomagnetic separation was then used to collect bacterial isolates ...

Author(s)
Stanford, K.; Johnson, R. P.; Alexander, T. W.; McAllister, T. A.; Reuter, T.
Publisher
Public Library of Sciences (PLoS), San Francisco, USA
Citation
PLoS ONE, 2016, 11, 8, pp e0159866

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