Evaluation of selective dry cow treatment following on-farm culture: Milk yield and somatic cell count in the subsequent lactation

Compared with blanket dry cow therapy (DCT), the selective antimicrobial treatment of cows based upon on-farm culture results has the potential to reduce the amount of antimicrobials used in dairy production. The objective of the current study was to determine the effect of a Petrifilm (3M Canada, L...

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Bibliographic Details
Published in:Journal of dairy science 2015-04, Vol.98 (4), p.2427-2436
Main Authors: Cameron, M., Keefe, G.P., Roy, J.-P., Stryhn, H., Dohoo, I.R., McKenna, S.L.
Format: Article
Language:English
Subjects:
Animals
Anti-Infective Agents - administration & dosage
Canada
Cattle
Cell Count - veterinary
culture
Dairying - methods
Female
Lactation - drug effects
Least-Squares Analysis
Mastitis, Bovine - drug therapy
Mastitis, Bovine - prevention & control
Milk - cytology
milk yield
Ontario
Petrifilm
selective dry cow therapy
somatic cell count
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Summary:Compared with blanket dry cow therapy (DCT), the selective antimicrobial treatment of cows based upon on-farm culture results has the potential to reduce the amount of antimicrobials used in dairy production. The objective of the current study was to determine the effect of a Petrifilm (3M Canada, London, Ontario) on-farm culture-based selective DCT program on milk yield and somatic cell count (SCC) in the following lactation. A total of 729 low-SCC (
ISSN:0022-0302
1525-3198
DOI:10.3168/jds.2014-8876