Abstract: There is provided a packaged disposable animal waste container which has in packaged combination an open-top moisture resistance receptacle of such size that an animal may stand in the receptacle and with side walls sufficiently low that the animal may step into the receptacle, but sufficiently high that normal animal pawing will not displace animal waste and the like therefrom. Packaged within the receptacle are a plurality of nested trays each having dimensions so that the trays closely fit within the receptacle side walls. The trays also have side walls sufficiently high for containing an effective layer of animal waste absorbent. The package has a removal retainer means for retaining the nested trays in the receptacle during shipping and handling. The nested trays are removed from the receptacle and serially placed in the receptacle for use by the animal. A soiled tray is removed and replaced by a clean tray.

Abstract: Dry cows are treated for mastitis by infusion into the udder of the cow a dosage of a limited solubility penicillin salt in a slow release base, with an antibiotic in the form of neomycin added in an alternate embodiment.