Research paper Evaluation of the use of dry cow antibiotics in low somatic cell count cowsClick here for resource
Significant Impact Group(s): Prudent use AB \ Farmer
Species targeted: Dairy;
Outcome Parameter(s): Reduced AMU; Clinical mastitis; SCC; Bacteriological status
Summary: This study evaluated selective Dry Cow Therapy (DCT) in cows with low somatic cell count (SCC) at the last milk recording before drying off in various Dutch dairy herds. The incidence rate of Clinical Mastitis (CM) was found to be 1.7 times higher in quarters dried off without antibiotics as compared with quarters dried off with antibiotics. S.uberis was the main bug causing CM in both udders with and without DCT. SCC at calving and 14 d in milk was significantly higher in quarters dried off without antibiotics compared with quarters dried off with antibiotics. Selective DCT significantly increased the incidence of CM and SCC. The decrease in ABU by drying off quarters without DCT was not compensated by an increase in ABU for treating CM. Total ABU related to mastitis was reduced by 85% in these quarters.
57 Research paper – Scherpenzeel – 2014 – Evaluation of the use of dry cow antibiotics in low somatic cell count cows
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