Association between herd management practices and antimicrobial resistance in Salmonella spp. from cull dairy cattle in Central California.

ABSTRACT:

Background

In this study cull dairy cows from six California dairy herds were sampled seasonally over the course of a year. The objectives were to determine the prevalence of antimicrobial resistant (AMR) Salmonella spp. shed in cull cow feces, and the factors associated with fecal shedding of AMR and multidrug resistant (MDR) Salmonella.

Methods

Six dairy farms located in the San Joaquin Valley of California were identified and enrolled as a convenience sample. On each dairy, and once during each of the four seasons, 10 cull cows were randomly selected for fecal sampling on the day of their removal from the herd. In addition, study personnel completed a survey based on responses of the herd manager to questions related to the previous 4 month's herd management

SUBMITTER: Pereira R 

PROVIDER: S-EPMC6431540 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature