AUTHOR=Bui Xuan T., Wolff Andersd , Madsen Mogens , Duong Bang Dang 

TITLE=Fate and Survival of Campylobacter coli in Swine Manure at Various Temperatures

JOURNAL=Frontiers in Microbiology

VOLUME=volume 2 - 2011

YEAR=2011

URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2011.00262

DOI=10.3389/fmicb.2011.00262

ISSN=1664-302X

ABSTRACT=Campylobacter coli is the most common Campylobacter species found in pig (95%), but the ability of this bacterium to survive in swine manure as well as the potential for causing human illness are poorly understood. We present here laboratory-scale experiments to investigate the effect of temperature on the survival of C. coli in spiked swine manure samples at temperatures from 4°C to 52°C. The survival of C. coli during storage for 30 days was studied by three different methods: bacterial culture (plate counting), DNA qPCR, and mRNA RT-qPCR. The results indicate that C. coli could survive in swine manure up to 24 days at 4ºC. At higher temperatures, this bacterium survived only 7 days (15ºC) or 6 days (22ºC) of storage. The survival of C. coli was extremely short (few hours) in samples incubated at 42 and 52ºC. The half-life of viable C. coli cells decreased exponentially with temperature form about 2 days at 4°C to about 14 minutes at 52°C. The results from the RT-qPCR method were consistent with the data from the bacterial culture method, indicating that it detected only viable C. coli cells, thus eliminating false-positive resulting from DNA from dead C. coli cells.