| temporal prevalence of antimicrobial resistance in campylobacter spp. from beef cattle in alberta feedlots. | antimicrobial resistance (amr) was temporally assessed in campylobacters isolated from beef cattle (7,738 fecal samples from 2,622 animals) in four commercial feedlots in alberta. all calves were administered chlortetracycline and oxytetracycline in feed, and a majority of the animals (93%) were injected with long-acting oxytetracycline upon arrival at the feedlot. fecal samples from individual animals were collected upon arrival (i.e., entry sample), 69 days (standard deviation [sd] = 3 days) a ... | 2006 | 16751519 |
| a national investigation of the prevalence and diversity of thermophilic campylobacter species in agricultural watersheds in canada. | the occurrence and diversity of thermophilic campylobacter species (c. jejuni, coli, and lari) were studied in water samples from four river basins located across canada. these basins located in quebec (bras d'henri), alberta (oldman), ontario (south nation), and british columbia (sumas) represented some of the most intensive farming areas in canada for hog, beef cattle, dairy cattle, and poultry, respectively. this study analyzed 769 water samples collected from 23 monitoring sites with agricul ... | 2014 | 24930011 |