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

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Abstract

Cattle degrade streams by increasing sediment, nutrient, and fecal bacteria levels. Riparian fencing is one best management practice that may protect water quality within many grazed lands. Here we surveyed the literature and summarized the responses of sediment, nutrient, and fecal indicator...

Author(s)
Grudzinski, B.; Fritz, K.; Dodds, W.
Publisher
Springer, New York, USA
Citation
Environmental Management, 2020, 66, 1, pp 121-135
Abstract

For approximately 10,000 years, cattle have been our major source of meat and dairy. However, cattle are also a major reservoir for dangerous foodborne pathogens that belong to the Shiga toxin-producing Escherichia coli (STEC) group. Even though STEC infections in humans are rare, they are often...

Author(s)
Sapountzis, P.; Segura, A.; Desvaux, M.; Forano, E.
Publisher
MDPI AG, Basel, Switzerland
Citation
Microorganisms, 2020, 8, 6,
Abstract

Aims: The objective of the study was to determine levels of Escherichia coli O157:H7 colonization in the gastrointestinal tract (GIT) of naturally shedding cattle shedding the pathogen at low- or super-shedder levels. Methods and Results: Over 2 years, feedlot cattle were sampled multiple times for ...

Author(s)
Wells, J. E.; Berry, E. D.; Kim, M.; Bono, J. L.; Oliver, W. T.; Kalchayanand, N.; Wang, R.; Freetly, H. C.; Means, W. J.
Publisher
Wiley, Oxford, UK
Citation
Journal of Applied Microbiology, 2020, 129, 5, pp 1419-1426
Abstract

This study was carried out to determine the antimicrobial resistance (AMR) genes and mobile genetic elements of 4 fecal blaCMY-2-producing Escherichia coli isolated from Holstein dairy calves on the same farm using whole-genome sequencing. Genomic analysis revealed that 3 of the 4 isolates shared...

Author(s)
Awosile, B.; Reyes-Velez, J.; Cuesta-Astroz, Y.; Rodríguez-Lecompte, J. C.; Saab, M. E.; Heider, L. C.; Keefe, G.; Sánchez, J.; McClure, J. T.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2020, 103, 1, pp 877-883
Abstract

Escherichia coli O157:H7 (O157) is noninvasive and a weak biofilm producer; however, a subset of O157 are exceptions. O157 ATCC 43895 forms biofilms and invades epithelial cells. Tn5 mutagenesis identified a mutation responsible for both phenotypes. The insertion mapped within the curli csgB...

Author(s)
Sheng HaiQing; Xue YanSong; Zhao Wei; Hovde, C. J.; Minnich, S. A.
Publisher
MDPI AG, Basel, Switzerland
Citation
Microorganisms, 2020, 8, 4,
Abstract

Pyelonephritis epidemiology of dairy cows is not well understood, and the risk factors are ill defined. The primary objective of this study is to assess the risk of catheterization for urine sampling in dairy cattle. The secondary objectives are to describe the epidemiology and risk factors of...

Author(s)
Solomon, D.; Shpigel, N. Y.; Salamon, H.; Goshen, T.
Publisher
Israel Veterinary Medical Association, Raanana, Israel
Citation
Israel Journal of Veterinary Medicine, 2020, 75, 1, pp 6-11
Abstract

Shiga toxin-producing Escherichia coli (STEC) is a foodborne pathogen transmitted from animals to humans through contaminated food. Cattle are the main reservoir of STEC, but their genetic diversity is still poorly characterized, especially regarding strains isolated in Portugal. We therefore...

Author(s)
Fiedler, G.; Ballem, A.; Brinks, E.; Almeida, C.; Franz, C. M. A. P.; Oliveirac, H.
Publisher
American Society for Microbiology (ASM), Washington, D.C., USA
Citation
Microbiology Resource Announcements, 2020, 9, 38,
Abstract

Prevalence of heat-resistant bacteria in beef poses a potential problem as thermal interventions are routinely used in beef processing to control contamination. Despite extreme heat-resistant (XHR) Escherichia coli having been isolated from a ground beef processing plant, there has not been a study ...

Author(s)
Guragain, M.; Smith, G. E.; King, D. A.; Bosilevac, J. M.
Publisher
International Association for Food Protection, Des Moines, USA
Citation
Journal of Food Protection, 2020, 83, 8, pp 1438-1443
Abstract

Two experiments were conducted to evaluate the feeding of direct fed microbials (DFMs) on fecal shedding of Escherichia coli O157:H7 in naturally infected cattle (experiment I) and on Salmonella in the feces and peripheral lymph nodes (PLNs) of experimentally infected cattle (experiment II). Thirty ...

Author(s)
Brown, T. R.; Edrington, T. S.; Genovese, K. J.; He, H. L.; Anderson, R. C.; Nisbet, D. J.
Publisher
International Association for Food Protection, Des Moines, USA
Citation
Journal of Food Protection, 2020, 83, 1, pp 28-36
Abstract

There is ongoing debate regarding whether critically important antimicrobials (CIA) should be used to treat infections in food-producing animals. In this systematic review, we determined whether CIA and non-CIA have comparable efficacy to treat nonsevere bovine clinical mastitis caused by the most...

Author(s)
Nobrega, D. B.; Naqvi, S. A.; Dufour, S.; Deardon, R.; Kastelic, J. P.; Buck, J. de; Barkema, H. W.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2020, 103, 11, pp 10585-10603

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