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

C. J. Foret^*, W. E. Owens, R. L. Boddie and P. Janowicz^*

^* West Agro Inc., Kansas City, MO 64153
Mastitis Research Laboratory, Hill Farm Research Station, Louisiana State University Agricultural Center, Homer 71040

Corresponding author: C. Foret; e-mail: chris.foret{at}DeLaval.com.

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.

Key Words: iodine • Staphylococcus aureus • Streptococcus agalactiae • teat dip

Abbreviation key: TSA = trypticase soy agar, TSB = trypticase soy broth

This article has been cited by other articles:

				C. Foret, H. Aguero, and P. Janowicz Efficacy of two barrier iodine teat dips under natural exposure conditions. J Dairy Sci, June 1, 2006; 89(6): 2279 - 2285. [Abstract] [Full Text] [PDF]

				R. L. Boddie, W. E. Owens, C. J. Foret, and P. Janowicz Efficacy of a 0.1% Iodine Teat Dip Against Staphylococcus aureus and Streptococcus agalactiae During Experimental Challenge J Dairy Sci, September 1, 2004; 87(9): 3089 - 3091. [Abstract] [Full Text] [PDF]