Evaluation of the use of dry cow antibiotics in low somatic cell count cows

The goal of dry cow therapy (DCT) is to reduce the prevalence of intramammary infections (IMI) by eliminating existing IMI at drying off and preventing new IMI from occurring during the dry period. Due to public health concerns, however, preventive use of antibiotics has become questionable. This st...

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Veröffentlicht in:	Journal of dairy science 2014, Vol.97 (6), p.3606-3614
Hauptverfasser:	Scherpenzeel, C.G. M., den Uijl, I.E. M., van Schaik, G., Olde Riekerink, R.G. M., Keurentjes, J.M., Lam, T.J.G. M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Animals Anti-Bacterial Agents - therapeutic use Cattle Cell Count - veterinary Corynebacterium - drug effects Corynebacterium - isolation & purification Dose-Response Relationship, Drug Escherichia coli - drug effects Escherichia coli - isolation & purification Female intramammary infection Klebsiella - drug effects Klebsiella - isolation & purification Lactation Logistic Models Mammary Glands, Animal - microbiology mastitis Mastitis, Bovine - drug therapy Mastitis, Bovine - epidemiology Mastitis, Bovine - microbiology Milk - chemistry Milk - cytology Parity Prevalence selective dry cow therapy Staphylococcus aureus - drug effects Staphylococcus aureus - isolation & purification Streptococcus - drug effects Streptococcus - isolation & purification
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Zusammenfassung:	The goal of dry cow therapy (DCT) is to reduce the prevalence of intramammary infections (IMI) by eliminating existing IMI at drying off and preventing new IMI from occurring during the dry period. Due to public health concerns, however, preventive use of antibiotics has become questionable. This study evaluated selective DCT in 1,657 cows with low somatic cell count (SCC) at the last milk recording before drying off in 97 Dutch dairy herds. Low SCC was defined as
ISSN:	0022-0302 1525-3198
DOI:	10.3168/jds.2013-7655