Main content

An investigation into distribution of serotypes and antimicrobial resistance patterns of Streptococcus suis isolates from clinical cases and healthy carrier pigs

Show simple item record

dc.contributor.advisor Friendship, Robert
dc.contributor.author Arndt, Emily Rose
dc.date.accessioned 2017-04-18T15:30:44Z
dc.date.available 2017-04-18T15:30:44Z
dc.date.copyright 2016-03
dc.date.created 2016-03-02
dc.date.issued 2017-04-18
dc.identifier.uri http://hdl.handle.net/10214/10309
dc.description.abstract The distribution of Streptococcus suis serotypes and antimicrobial resistance patterns in clinical cases and healthy carrier pigs was investigated. Isolates were confirmed as S. suis by various biochemical techniques and serotyped using multiplex PCR amplification. Antimicrobial susceptibility testing was performed using the disk diffusion method. Recovery of S. suis was more likely in samples from suckling and nursery piglets than from sows and finishers (P <0.001), and more commonly recovered from healthy pigs as opposed to sick pigs (P <0.01). Samples from pigs in a continuous flow system were more likely to be found to be S. suis positive than those from pigs in an all-in/all-out system (P <0.01). Twenty-two different serotypes were identified, with types 5, 9, and 31 being the most common types isolated. Most isolates (94.5%) were resistant to at least one antimicrobial agent. A low prevalence of resistance was seen against ampicillin, ceftiofur, and florfenicol (<1.0%), while a high prevalence of resistance against tetracycline (84.2%), tiamulin (65.2%), and spectinomycin (40.4%) and an intermediate level of resistance to trimethoprim/sulfa (13.2%) was identified. en_US
dc.description.sponsorship University of Guelph-OMAFRA Research Partnership en_US
dc.language.iso en en_US
dc.subject Streptococcus suis en_US
dc.subject pigs en_US
dc.subject antimicrobial resistance en_US
dc.title An investigation into distribution of serotypes and antimicrobial resistance patterns of Streptococcus suis isolates from clinical cases and healthy carrier pigs en_US
dc.type Thesis en_US
dc.degree.programme Population Medicine en_US
dc.degree.name Master of Science en_US
dc.degree.department Department of Population Medicine en_US
dc.rights.license All items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.


Files in this item

Files Size Format View
Arndt_Emily_201704.pdf 1.433Mb PDF View/Open

This item appears in the following Collection(s)

Show simple item record