Used to help prevent new intramammary infections during the dry period.
It is a sterile, inert, malleable paste that is infused into the teat canal of cows at dry off, which creates a barrier against environmental pathogens similar to the keratin plug.
It is presented ready-to-use in syringes, each containing 4 grams of intramammary infusion composed of 65% bismuth subnitrate, in a mineral oil vehicle.
