FEEDING FOR MILK 79 



quantities of it long-lived. The use of this food is now prohibited 

 by law in most cities. Dried brewers' and distillers' grains consti- 

 tute wholesome food*for cows. Moldy hay, straw or grain ; decayed 

 leaves, salt hay, onions, garlic and cabbage may give to milk a bad 

 odor or flavor. 



The expressed pulp from the sugar beet is inadvisable as a food 

 for cows, because of its richness in potassium salts, which find their 

 way into the milk and render it unfit food for human beings or 

 animals. 



The milk of cows receiving drugs is unsuitable for food, since 

 many medicines are eliminated in the milk. Furthermore, the milk 

 of cows sick in any manner should be withheld from feeding pur- 

 poses, as poisons in the blood or germs of disease may be conveyed 

 to man or animals in the milk from the sick cow. The milk of 

 cows undergoing the tuberculin test may be used as food unless 

 the animal reacts to the test, when it should be permanently rejected 

 for human consumption, or boiled before feeding it to animals. 



