Herd-level risk factors associated with fecal shedding of Shiga toxin-encoding bacteria on dairy farms in Minnesota, USA

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

Herd-level risk factors associated with fecal shedding of Shiga toxin-encoding bacteria on dairy farms in Minnesota, USA

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

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Abstract

This study aimed to identify herd-level risk factors associated with fecal shedding of Shiga toxinencoding 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.

Original language	English (US)
Pages (from-to)	693-697
Number of pages	5
Journal	Canadian Veterinary Journal
Volume	54
Issue number	7
State	Published - Jul 2013

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Copyright 2013 Elsevier B.V., All rights reserved.

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title = "Herd-level risk factors associated with fecal shedding of Shiga toxin-encoding bacteria on dairy farms in Minnesota, USA",

abstract = "This study aimed to identify herd-level risk factors associated with fecal shedding of Shiga toxinencoding 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.",

author = "Seongbeom Cho and Fossler, {Charles P.} and Francisco Diez-Gonzalez and Wells, {Scott J.} and Hedberg, {Craig W.} and Kaneene, {John B.} and Ruegg, {Pamela L.} and Warnick, {Lorin D.} and Bender, {Jeffrey B.}",

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AU - Cho, Seongbeom

AU - Fossler, Charles P.

AU - Diez-Gonzalez, Francisco

AU - Wells, Scott J.

AU - Hedberg, Craig W.

AU - Kaneene, John B.

AU - Ruegg, Pamela L.

AU - Warnick, Lorin D.

AU - Bender, Jeffrey B.

PY - 2013/7

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AB - This study aimed to identify herd-level risk factors associated with fecal shedding of Shiga toxinencoding 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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Herd-level risk factors associated with fecal shedding of Shiga toxin-encoding bacteria on dairy farms in Minnesota, USA

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