Herd-level Risk Factors Associated with Fecal Shedding of Shiga Toxin-encoding Bacteria on Dairy Farms in Minnesota, USA

Overview

Journal Can Vet J

Specialty Veterinary Medicine

Date 2013 Oct 25

PMID 24155466

Citations 5

Authors

Seongbeom Cho

Charles P Fossler

Francisco Diez-Gonzalez

Scott J Wells

Craig W Hedberg

John B Kaneene

Pamela L Ruegg

Lorin D Warnick

Jeffrey B Bender

Affiliations

Soon will be listed here.

Abstract

This study aimed to identify herd-level risk factors associated with fecal shedding of Shiga toxin-encoding bacteria (STB) on dairy cattle farms in Minnesota, USA. After adjustment for farm size, risk factors included: use of total mixed ration (TMR) for lactating dairy cows [odds ratio (OR) = 3.0; 95% confidence interval (CI): 1.8 to 5.1], no use of monensin for weaned calves (OR = 4.8, 95% CI: 2.5, 9.3), and no use of decoquinate for preweaned calves (OR = 2.2, 95% CI: 1.4, 3.6). Fecal shedding of STB was more common in small herds (< 100 cows, OR = 3.6, 95% CI: 2.1, 6.2) than in large herds (≥ 100 cows). Herd management factors related to cattle feeding practices were associated with fecal shedding of STB.

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