Herman W. Barkema
University of Calgary
474 Papers
2.3K Citations
Herman W. Barkema is an academic researcher from University of Calgary. The author has contributed to research in topics: Medicine & Mastitis. The author has an hindex of 74, co-authored 408 publications. Previous affiliations of Herman W. Barkema include Ghent University & University of Prince Edward Island.
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Papers
Associations of herd- and cow-level factors, cow lying behavior, and risk of elevated somatic cell count in free-stall housed lactating dairy cows.
M.E. Alexandrea Watters,Karin M.A. Meijer,Herman W. Barkema,Ken E. Leslie,Marina A.G. von Keyserlingk,Trevor J. DeVries +5 more
TL;DR: The results indicate that management practices that promote post-milking standing time, such as the manipulation of feed delivery around milking times, should be encouraged to reduce the risk of cows experiencing new eSCC.
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Subclinical mastitis and associated risk factors on dairy farms in
Jan Lievaart,G Potts,Herman W. Barkema +2 more
- 01 Jan 2011
TL;DR: The outcome provides a benchmark for the current focus of the NSW dairy industry on the management practices associated with a low prevalence of SCM, such as wearing gloves, using paper towels and feeding cows directly after milking.
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Invited review: Selective use of antimicrobials in dairy cattle at drying-off.
K. McCubbin,E. de Jong,Theo J.G.M. Lam,David F. Kelton,John R. Middleton,Scott McDougall,S. De Vliegher,Sandra Godden,Päivi J. Rajala-Schultz,S Rowe,David C. Speksnijder,John P. Kastelic,Herman W. Barkema +12 more
TL;DR: In this article , the authors summarized available literature regarding current dry cow therapy practices and associated impacts on udder health, milk production, economics, antimicrobial use, and antimicrobial resistance.
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Prevalence of antimicrobial resistance genes and its association with restricted antimicrobial use in food-producing animals: a systematic review and meta-analysis
Diego B. Nobrega,Diego B. Nobrega,Karen L. Tang,Niamh Caffrey,Jeroen De Buck,Susan C. Cork,Paul E. Ronksley,Alicia J. Polachek,Heather Ganshorn,Nishan Sharma,John P. Kastelic,James D. Kellner,William A. Ghali,Herman W. Barkema,Herman W. Barkema +14 more
TL;DR: The available body of scientific evidence supported that restricted use of antimicrobials in food animals was associated with an either lower or equal presence of ARGs in bacteria, with effects dependent on ARG, host species and restricted drug.
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Prevalence of Mycobacterium avium ssp. paratuberculosis infections in Canadian dairy herds
Caroline S. Corbett,S. Ali Naqvi,C.A. Bauman,Jeroen De Buck,Karin Orsel,Fabienne D Uehlinger,David F. Kelton,Herman W. Barkema +7 more
TL;DR: This was the first time MAP prevalence was determined using 1 detection method, performed in 1 laboratory, and within a single year across Canada, enabling direct comparisons of prevalence among regions, housing types, and herd sizes.
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