Efficacy of an internal teat sealer used in ...
|Title||Efficacy of an internal teat sealer used in conjunction with intramammary antibiotics on the cure of intramammary infections during the dry period|
|Author(s)||C. J. Sanford, Gregory P. Keefe, Ian R. Dohoo, H. W. Barkema, R. T. Dingwell, K. E. Leslie|
|Abstract||The objective of this study was to determine if an internal teat sealer used in addition to dry-cow antibiotics would have a beneficial effect on the elimination of intramammary pathogens during the dry period. In total, data from 425 culture-positive quarters from 270 Holstein-Friesian dairy cows were utilized in this trial. Milk samples were collected aseptically two weeks prior to the anticipated dry-off date, on the dry-off date and again at 1-8 days-in-milk. Infected quarters were randomly assigned to treatment with both an internal teat sealer and a dry-cow antibiotic, or a dry-cow antibiotic alone. Quarters were defined as cured if the pathogen(s) isolated in the dry-off sample were not isolated in the postpartum sample. There was no difference in overall bacteriological cure between the two treatment groups, internal teat sealer and dry-cow antibiotic versus dry-cow antibiotic alone. Similarly, no significant differences were observed for cure of either major or minor pathogen infections..|
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