BoviBlock is indicated as an aid in the prevention of new intramammary infections of dairy cattle throughout the dry period. Benefits include: • Mimics the cow’s natural first line of defense, the keratin plug • Provides a safe, antibiotic-free, physical barrier between the udder and the environment • Helps control mastitis during the dry period where more than 50% of early lactation Escherichia coli mastitis cases begin • Comes in easy-to-use 4 gram syringes containing 2.6 grams of bismuth subnitrate • Syringes have a two-stage tip, allowing for either full or partial insertion into the teat orifice • Zero milk withdrawal and zero meat withdrawal