Efficacy of Two Iodine Teat Dips During Experimental Challenge with Staphylococcus aureus and Streptococcus agalactiae

Abstract

An experimental challenge trial was performed against Staphylococcus aureus and Streptococcus agalactiae following the procedures recommended by the National Mastitis Council. The efficacy of two teat dips, product 1 (Bovadine with I-Tech II) and product 2 (Bovadine with I-Tech, used as a positive control), was determined. Both teat dips contain 1% iodine and 10% glycerin. Product 1 established an 89.7% reduction in infections against Staph. aureus and 73.1% reduction in infections against Strep. agalactiae. Product 2 demonstrated an 86.2% reduction in infections against Staph. aureus and 78.4% reduction in infections against Strep. agalactiae. Teat skin and teat ends were evaluated before and after the trial. No significant change in teat condition was observed for either product.

A review of test protocols for the evaluation of teat disinfectants

“…Foret et al . () and Boddie et al . () additionally used a cotton pledget moistened with 70% w/v alcohol to wipe each teat, which is somewhat similar to the Animal Health Ireland (AHI) CellCheck recommendations (CellCheck, ).…”

“…The criteria described by Foret et al . () and Boddie et al . () would be preferred by the authors as the most suitable criteria for defining new IMIs.…”

“…(), Foret et al . () and Boddie et al . () used negative controls by leaving the other half of the udder as undisinfected controls.…”

“…All reviewed studies are in agreement with using the split udder design when applying the teat disinfectant, with Foret et al . () and Leslie et al . () also implementing a split herd design.…”

Effect of Combination Therapy with Lactoferrin and Antibiotics against Staphylococcal Mastitis on Drying Cows

“…Therefore, the many therapeutic methods have been reported, such as antibiotics [8,28,29], cytokines [30,35], immunoglobulin [1], vaccines [27,34], disinfectants [10,11,38] and biologically active substrates [16,19].…”