Document Type
Article
Publication Date
5-2-2012
Journal or Book Title
Foodborne Pathogens and Disease
Volume
9
Issue
5
First Page
425
Last Page
430
DOI
10.1089/fpd.2011.0996
Abstract
Enterococci are Gram-positive, facultative anaerobic cocci. They are found in many environments (including milk and dairy products, vegetables, plants, cereals, and meats). Enterococci are considered commensal organisms, but can also be opportunistic pathogens associated with morbidity and mortality of humans and animals. A longitudinal study of antibiotic resistance of Enterococcus to ampicillin, erythromycin, and tetracycline was conducted on an academic teaching farm. Environmental samples were collected by drag swabs at select locations prior to and after the introduction of livestock. All samples were initially processed and screened with specialized media, and then replica plated on tryptic soy agar containing a predetermined amount of antibiotic. There was some variation in the quantity of bacterial and antibiotic-resistant colonies; however, resistance to tetracycline was extremely high. The increases of too numerous to count populations were not time-dependent and appeared consistently after the placement of cows. There is little information on the prevalence and epidemiology of antibiotic resistance of Enterococci outside of the hospital setting, including on dairy farms. Longitudinal studies are important in providing insight into the dynamics of establishment and proliferation of bacteria and of antibiotic resistance.
Copyright Owner
Mary Ann Liebert, Inc.
Copyright Date
2012
Language
en
File Format
application/pdf
Recommended Citation
Shipp, Ginger M. and Dickson, James S., "A Longitudinal Study of the Establishment and Proliferation of Enterococcus on a Dairy Farm" (2012). Animal Science Publications. 59.
https://lib.dr.iastate.edu/ans_pubs/59
Included in
Agriculture Commons, Dairy Science Commons, Environmental Microbiology and Microbial Ecology Commons, Food Processing Commons, Meat Science Commons, Parasitology Commons
Comments
This is a copy of an article published in the Foodborne Pathogens and Disease © 2012 Mary Ann Liebert, Inc.; Foodborne Pathogens and Disease is available online at: http://online.liebertpub.com.