Show Penicillin for Cows COWl Penicillin used for tor treating cows with mastitis can also affect the processing of butterfat and cottage cot tage cheese Farmers using penicillin peal peni cillin for mastitis should hold out milk from treated cows for two or three days following treatment By that time effects of the penicillin usually are gone Extremely small amounts of penicillin in milk will prevent proper acid development Treatment of one quarter of one cows cow's udder may result in trouble at the dairy plant even though the milk may be mixed with that from 20 cows It will be better business to dump a few palls pails of milk than to risk having a whole can re reo rejected looted upon delivery |