Evaluation of two iodophor teat germicides: activity against Staphylococcus aureus and Streptococcus agalactiae.

Abstract

Two germicides containing 0.5 and 1% titratable iodine were tested for efficacy against the development of new intramammary infections (IMI) caused by Staphylococcus aureus and Streptococcus agalactiae. The two trials for postmilking teat dip used a model for experimental challenge that was recommended by the National Mastitis Council. The 0.5% iodine formulation reduced new Staph. aureus IMI by 78.2% and reduced new Strep. agalactiae IMI by 73.2%. The 1% iodine product reduced new Staph. aureus IMI by 43.5% and reduced new Strep. agalactiae IMI by 46.4%. No adverse effects on the condition of teat skin or on teat ends were observed over the course of the trials. At the completion of each trial, the teat skin of dipped quarters was characterized as normal, smooth skin that was free from scales, cracks, or chapping; the teat orifice was characterized as smooth without evidence of irritation.

• Authors: R L Boddie, S C Nickerson
• Journal: Journal of dairy science (J Dairy Sci) Vol. 80 Issue 8 Pg. 1846-50 (Aug 1997) ISSN: 0022-0302 [Print] United States
• PMID: 9276825 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Anti-Infective Agents, Local
• Iodophors

Topics

• Animals
• Anti-Infective Agents, Local (pharmacology, therapeutic use)
• Cattle (microbiology)
• Female
• Iodophors (administration & dosage, pharmacology, therapeutic use)
• Mastitis, Bovine (microbiology, prevention & control)
• Staphylococcal Infections (prevention & control)
• Staphylococcus aureus (drug effects)
• Streptococcal Infections (prevention & control)
• Streptococcus agalactiae (drug effects)