Publications by authors named "Greg P Keefe"

Claim this Profile
D
Dynamics and impacts of staphylococcal intramammary infections during dairy cows' nonlactating periods.
Daryna Kurban, Zhangbin Cai, Jean-Philippe Roy, Trevor J DeVries, Jennifer Ronholm, Greg P Keefe

J Dairy Sci· October 2025

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
D
Diagnosing Intramammary Infection: Meta-Analysis and Mapping Review on Frequency and Udder Health Relevance of Microorganism Species Isolated from Bovine Milk Samples.
Daryna Kurban, Jean-Philippe Roy, Fidèle Kabera, Annie Fréchette, Maryse Michèle Um, Greg P Keefe

Animals (Basel)· November 2022

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
C
Communication skills training and assessment of food animal production medicine veterinarians: A component of a voluntary Johne's disease control program.
Karen A MacDonald-Phillips, Shawn L B McKenna, Darcy H Shaw, Greg P Keefe, John VanLeeuwen

J Dairy Sci· March 2022

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
D
Dairy producer satisfaction and knowledge transfer with the veterinary-administered risk assessment and management plan in a voluntary Johne's disease control program.
Karen A MacDonald-Phillips, Greg P Keefe, John VanLeeuwen, Darcy H Shaw, J McClure

J Dairy Sci· March 2022

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
D
Diagnostic performance of direct and indirect methods for assessing failure of transfer of passive immunity in dairy calves using latent class analysis.
Ibrahim Elsohaby, Marshal M Mweu, Yasser S Mahmmod, J Trenton McClure, Greg P Keefe

Prev Vet Med· March 2019

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
C
Canadian National Dairy Study: Heifer calf management.
Charlotte B Winder, Cathy A Bauman, Todd F Duffield, Herman W Barkema, Greg P Keefe

J Dairy Sci· November 2018

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
A
Application of transmission infrared spectroscopy and partial least squares regression to predict immunoglobulin G concentration in dairy and beef cow colostrum.
Ibrahim Elsohaby, M Claire Windeyer, Deborah M Haines, Elizabeth R Homerosky, Jennifer M Pearson, Greg P Keefe

J Anim Sci· March 2018

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
D
Distribution of non-aureus staphylococci species in udder quarters with low and high somatic cell count, and clinical mastitis.
Larissa A Z Condas, Jeroen De Buck, Diego B Nobrega, Domonique A Carson, Jean-Philippe Roy, Greg P Keefe

J Dairy Sci· July 2017

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
A
Assessment of the relative sensitivity of milk ELISA for detection of Mycobacterium avium ssp. paratuberculosis infectious dairy cows.
Emilie L Laurin, Javier Sanchez, Marcelo Chaffer, Shawn L B McKenna, Greg P Keefe

J Dairy Sci· January 2017

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
G
Genome-Wide Diversity and Phylogeography of Mycobacterium avium subsp. paratuberculosis in Canadian Dairy Cattle.
Christina Ahlstrom, Herman W Barkema, Karen Stevenson, Ruth N Zadoks, Roman Biek, Greg P Keefe

PLoS One· July 2016

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
N
Novel Cell Preservation Technique to Extend Bovine In Vitro White Blood Cell Viability.
Emilie L Laurin, Shawn L B McKenna, Javier Sanchez, Horacio Bach, Juan Carlos Rodriguez-Lecompte, Greg P Keefe

PLoS One· May 2016

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
T
Typing of Mycobacterium avium subspecies paratuberculosis isolates from Newfoundland using fragment analysis.
Milka P Podder, Susan E Banfield, Greg P Keefe, Hugh G Whitney, Kapil Tahlan

PLoS One· April 2016

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
K
Klebsiella species associated with bovine mastitis in Newfoundland.
Milka P Podder, Laura Rogers, Peter K Daley, Greg P Keefe, Hugh G Whitney

PLoS One· April 2015

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
L
Limitations of variable number of tandem repeat typing identified through whole genome sequencing of Mycobacterium avium subsp. paratuberculosis on a national and herd level.
Christina Ahlstrom, Herman W Barkema, Karen Stevenson, Ruth N Zadoks, Roman Biek, Greg P Keefe

BMC Genomics· March 2015

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
T
The association of detection method, season, and lactation stage on identification of fecal shedding in Mycobacterium avium ssp. paratuberculosis infectious dairy cows.
Emilie L Laurin, Marcelo Chaffer, J Trenton McClure, Shawn L B McKenna, Greg P Keefe

J Dairy Sci· January 2015

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
S
Sensitivity and specificity of repeated test results from a commercial milk enzyme-linked immunosorbent assay for detection of Mycobacterium avium subspecies paratuberculosis in dairy cattle.
Carrie J Lavers, Ian R Dohoo, Shawn L B McKenna, Greg P Keefe

J Am Vet Med Assoc· January 2015

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
E
Evaluation of environmental fecal culture for Mycobacterium avium subspecies paratuberculosis detection in dairy herds and association with apparent within-herd prevalence.
Carrie J Lavers, Shawn L B McKenna, Ian R Dohoo, Herman W Barkema, Greg P Keefe

Can Vet J· November 2013

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
R
Relationships among milk urea-nitrogen, dietary parameters, and fecal nitrogen in commercial dairy herds.
Pipat Arunvipas, John A VanLeeuwen, Ian R Dohoo, Greg P Keefe, Shelley A Burton

Can J Vet Res· October 2008

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
E
Estimate of the direct production losses in Canadian dairy herds with subclinical Mycobacterium avium subspecies paratuberculosis infection.
Ashwani Tiwari, John A VanLeeuwen, Ian R Dohoo, Greg P Keefe, Alfons Weersink

Can Vet J· June 2008

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
C
Comparison of bacterial culture, histopathology, and immunohistochemistry for the diagnosis of Johne's disease in culled dairy cows.
Shannon A Martinson, Paul E Hanna, Basil O Ikede, Jeff P Lewis, Lisa M Miller, Greg P Keefe

J Vet Diagn Invest· January 2008

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
J
Johne's disease in Canada part II: disease impacts, risk factors, and control programs for dairy producers.
Shawn L B McKenna, Greg P Keefe, Ashwani Tiwari, John VanLeeuwen, Herman W Barkema

Can Vet J· November 2006

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
J
Johne's disease in Canada Part I: clinical symptoms, pathophysiology, diagnosis, and prevalence in dairy herds.
Ashwani Tiwari, John A VanLeeuwen, Shawn L B McKenna, Greg P Keefe, Herman W Barkema

Can Vet J· September 2006

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
A
Assessment of antimicrobial transfer from treated to untreated mammary gland quarters by use of high-pressure liquid chromatography for detection of cloxacillin in milk samples from nonlactating dairy cows.
Carolyn J Sanford, Greg P Keefe, Ian R Dohoo, Ken E Leslie

Am J Vet Res· July 2006

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
E
Efficacy of using an internal teat sealer to prevent new intramammary infections in nonlactating dairy cattle.
Carolyn J Sanford, Greg P Keefe, Ian R Dohoo, Ken E Leslie, Randy T Dingwell

J Am Vet Med Assoc· May 2006

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis
E
Effects of seropositivity for bovine leukemia virus, bovine viral diarrhoea virus, Mycobacterium avium subspecies paratuberculosis, and Neospora caninum on culling in dairy cattle in four Canadian provinces.
Ashwani Tiwari, John A VanLeeuwen, Ian R Dohoo, Henrik Stryhn, Greg P Keefe

Vet Microbiol· August 2005

Social Media Activity not collected for this article yet.

Sign Up to Request Social Media Analysis