Field Trial Evaluation of Premilking Teat Disinfection

Field trial evaluation of premilking teat disinfection.

Efficacy of premiliking teat disinfection (predipping) with good udder preparation was compared with good udder preparation alone on four well-managed, commercial dairy farms. Three teat dip formulations containing iodophor were used for predipping. Predipping reduced the rate of intramammary infection with major mastitis pathogens approximately 54%. Infection rate with esculin-positive strepto...

Pilot study on the influence of premilking iodine-based teat disinfection on milk iodine content

Premilking cleaning and disinfection of teats were shown to be effective to prevent environmental mastitis. However, premilking teat disinfection is not a commonly used practice in Germany because of the risk of disinfection product residues in the milk. The objective of this study was to evaluate the effects of five differently concentrated iodine-based, foaming, premilking teat disinfectants ...

Effect of different premilking manual teat-cleaning methods on bacterial spores in milk.

Different teat-cleaning methods were evaluated to determine their effect on the presence of spores from anaerobic bacterial spore-formers in the milk. Artificial contamination was used to achieve uniform contamination of teats to reduce the number of cows and samples needed in the experiments and still obtain adequate power to detect differences among tested methods. Teats were contaminated exp...

Evaluation of 1.6% phenol as a premilking and postmilking teat dip in preventing new bovine intramammary infections.

We evaluated the effectiveness of a 1.6% phenol-based teat dip using both a teat skin assay and natural exposure field trial. A teat skin assay was conducted to ascertain the concentration of phenol + phenate to be used in the field study. One percent and 0.5% iodine, and 0.5, 1.1, and 1.6% phenol + phenate were compared using Escherichia coli and Staphylococcus aureus. Logarithmic reductions f...

Field evaluation of emergency well disinfection for contamination events.