title: Hygiene in the prevention of udder infections. II. Evaluation of oil-based teat dips.
abstract: Oil-based teat dips containing iodine at .5 and 1% were compared in a series of studies with two water-based iodophor products of the same concentration and also with undipped controls. When the two types of products were tested at .5% under conditions of natural infection, the water-based dip was four times more effective than the oil-based dip at preventing Staphylococcus aureus infections. In three subsequent trials teats were experimentally exposed to S. aureus and Streptococcus agalactiae. Five times more S. aureus infections developed in a group dipped with the oil-based dip at 1% iodine with an undipped control yielded no significant difference for S. aureus infections. The 1% iodine water-based product was nine times more effective in preventing S. aureus infections than the 1% oil-based product. Differences in the incidence of S. agalactiae infections were nonsignificant within the individual trials. Though ineffective in preventing udder infections oil-based products were effective in creating a supple condition of teat skin.
mesh_terms: D000818:Animals; D000891:Anti-Infective Agents, Local / Q000627:therapeutic use*; D010367:Arachis; D002417:Cattle; D005260:Female; D007455:Iodine / Q000008:administration & dosage / Q000627:therapeutic use; D007774:Lactation; D008321:Mammary Glands, Animal; D008414:Mastitis, Bovine / Q000517:prevention & control*; D008899:Mineral Oil / Q000008:administration & dosage; D009821:Oils / Q000008:administration & dosage / Q000627:therapeutic use; D011247:Pregnancy; D013203:Staphylococcal Infections / Q000517:prevention & control / Q000662:veterinary; D013290:Streptococcal Infections / Q000517:prevention & control / Q000662:veterinary; D013292:Streptococcus agalactiae
chemical_list: D000891:Anti-Infective Agents, Local; D009821:Oils; D008899:Mineral Oil; D007455:Iodine