Field Trial Models For the Evaluation of Hairy Wart Treatment Products

Abstract

Hairy heel warts remain a major concern for dairy producers because of the effect on milk yield. Field test procedures have been developed for the evaluation of hairy wart treatment products. Potential treatment products are applied daily using a garden sprayer after pre-washing the affected area with water. Product application is done once a day for 10 days. The hairy heel wart is visually evaluated on a five part scale that includes: lesion size, description, pain, color, and swelling. Evaluation of the lesion is conducted daily to follow change in appearance of the lesion. Subjective scores are converted to a numerical index in order to develop a "total lesion score." These field trial methods are being used to develop non-antibiotic treatment products for hairy heel warts. Initial results indicate efficacy for an iodine formulation with high free iodine levels.