Estimating diagnostic accuracy of fecal culture in liquid media for the detection of Mycobacterium avium subsp. paratuberculosis infections in Québec dairy cows: A latent class model

2018 ◽  
Vol 160 ◽  
pp. 26-34
Author(s):  
Juan Carlos Arango-Sabogal ◽  
Gilles Fecteau ◽  
Julie Paré ◽  
Jean-Philippe Roy ◽  
Olivia Labrecque ◽  
...  
Keyword(s):  
Diagnostic Accuracy ◽  
Dairy Cows ◽  
Mycobacterium Avium ◽  
Latent Class ◽  
Latent Class Model ◽  
Mycobacterium Avium Subsp ◽  
Fecal Culture ◽  
Liquid Media ◽  
Class Model ◽  
Mycobacterium Avium Subsp Paratuberculosis

scholarly journals Fecal culture and two fecal-PCR methods for the diagnosis of Mycobacterium avium subsp. paratuberculosis in a seropositive herd

2017 ◽  
Vol 30 (2) ◽  
pp. 101-115
Author(s):  
Nathalia M Correa-Valencia ◽  
◽  
Nicolás F Ramírezn ◽  
Michael Bülte ◽  
Jorge A Fernández-Silva ◽  
...  
Keyword(s):  
Mycobacterium Avium ◽  
Mycobacterium Avium Subsp ◽  
Fecal Culture ◽  
Mycobacterium Avium Subsp Paratuberculosis

scholarly journals Faecal bacterial composition in dairy cows shedding Mycobacterium avium subsp. paratuberculosis in faeces in comparison with nonshedding cows

2016 ◽  
Vol 62 (6) ◽  
pp. 538-541 ◽  
Author(s):  
Marija Kaevska ◽  
Petra Videnska ◽  
Karel Sedlar ◽  
Iva Bartejsova ◽  
Alena Kralova ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Mycobacterium Avium ◽  
Mycobacterium Avium Subsp ◽  
Rrna Gene ◽  
Microbial Composition ◽  
Bacterial Composition ◽  
Bacterial Populations ◽  
Faecal Samples ◽  
Mycobacterium Avium Subsp Paratuberculosis ◽  
The 16S Rrna Gene

The aim of this study was to determine possible differences in the faecal microbiota of dairy cows infected with Mycobacterium avium subsp. paratuberculosis (Johne’s disease) in comparison with noninfected cows from the same herds. Faecal samples from cows in 4 herds were tested for M. avium subsp. paratuberculosis by real-time PCR, and faecal bacterial populations were analysed by 454 pyrosequencing of the 16S rRNA gene. The most notable differences between shedding and nonshedding cows were an increase in the genus Psychrobacter and a decrease in the genera Oscillospira, Ruminococcus, and Bifidobacterium in cows infected with M. avium subsp. paratuberculosis. The present study is the first to report the faecal microbial composition in dairy cows infected with M. avium subsp. paratuberculosis.

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