Reference | Lugsomya2018 (20009)

Samples were collected from 25 farms located across five Provinces of Thailand. The farms were selected based on their antimicrobial usage patterns. Twelve farms routinely used PAs; two only used antimicrobials therapeutically, TAs; and 11 small farms had never used antimicrobials, NAs. For the 12 PA farms, a routine in-feed antimicrobial use program had been followed for at least 2 years for endemic bacterial disease prophylaxis. A total of 102 fecal samples from individual 18- to 20- week-old fattening pigs with a normal appearance and no recent history of enteric or respiratory disease, or TA treatment, were obtained from the farms (7–10 samples per farm).A total of 70 fecal samples were obtained from similar fattening pigs on two TA farms that did not use PAs and only used the injectable antimicrobial enrofloxacin or gentamicin under veterinary prescription for individual treatment of specific clinical cases where the sick pigs were kept in isolation. Another 67 samples were collected from fattening pigs on the 11 NA farms, where there was no access to or use of antimicrobials or vaccination.

For each pig, at least 5 g of rectal feces was collected directly into a sterile container and delivered to the laboratory at 4C.

AST Method: None

Reference explicitly reports AST breakpoints: False

Reference reports using a MIC table: False