Improving mastitis control programs through identification of risk factors related to the incidence of subclinical intramammary infections

S. Dufour; I. Dohoo; T. Devries; D. Scholl

Improving mastitis control programs through identification of risk factors related to the incidence of subclinical intramammary infections

In: Mastitis control

Authors:

S. Dufour

S. Dufour ¹Faculté de Médecine Vétérinaire,Université de Montréal, St-Hyacinthe, C.P. 5000, St-Hyacinthe, Quebec J2S 7C6, Canada
²Canadian Bovine Mastitis Research Network, C.P. 5000, St-Hyacinthe, Quebec J2S 7C6, Canada

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I. Dohoo

I. Dohoo ²Canadian Bovine Mastitis Research Network, C.P. 5000, St-Hyacinthe, Quebec J2S 7C6, Canada
³University of PEI, 550 University Ave, Charlottetown, PEI, C1A 4P3, Canada

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T. Devries

T. Devries ²Canadian Bovine Mastitis Research Network, C.P. 5000, St-Hyacinthe, Quebec J2S 7C6, Canada
⁴University of Guelph, Kemptville Campus, Box 2003, 830 Prescott Street, Kemptville, Ontario K0G 1J0, Canada Corresponding author: simon.dufour@umontreal.ca

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D. Scholl

D. Scholl ¹Faculté de Médecine Vétérinaire,Université de Montréal, St-Hyacinthe, C.P. 5000, St-Hyacinthe, Quebec J2S 7C6, Canada
²Canadian Bovine Mastitis Research Network, C.P. 5000, St-Hyacinthe, Quebec J2S 7C6, Canada

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Type:: Chapter

Pages:: 211–218

DOI:: https://doi.org/10.3920/9789086866496_042

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The goal of this study was to determine the impact of modifiable management practices on the incidence of pathogen-specific subclinical mastitis. The relationship between bedding and feeding management and the incidence of coagulase negative Staphylococcus (CNS) intramammary infection (IMI) is explored in this paper. Ninety Canadian dairy herds were selected and in each herd bacteriological culture of three repeated quarter milk samples of 15 dairy cows was realised. The median herd CNS IMI incidence was 0.40 IMI/quarter-year at risk (first and third quartiles: 0.17 and 0.82). Cows that were housed on sawdust had three times less risk of acquiring a new CNS IMI. Use of straw as bedding and timing of feed delivery in relation to milking were not significant risk factors for new CNS IMI.

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Mastitis control

From science to practice

E-Book ISBN:: 9789086866496

Publisher:: Wageningen Academic

Print Publication Date:: 30 Oct 2008

Subjects
- Life Sciences

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Improving mastitis control programs through identification of risk factors related to the incidence of subclinical intramammary infections

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Mastitis control

From science to practice

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