THE SANITARY CONDITION OF MILK 77 



larger amounts. Other compounds in diseased milk 

 are albuminous substances known as toxins, which are 

 products of various disease germs. These toxins are 

 poisonous in their action and are sometimes more 

 injurious than the disease germ itself. In the case 

 of milk from tuberculous animals, a small amount of 

 toxic material is piesent. WoU, in his translation of 

 (irotenfelt's work, "The Principles of Modern Dairy 

 Practice," says that in the earlier stages of tuber- 

 culosis the milk often has an abnormal yellowish 

 tinge. 



The condition of the animals as to health is directly 

 dependent upon the care they receive and the sanitary 

 surroundings in barns, stables, and fields. 



Care of the Animah. — VVlicn cows are kept in 

 crowded and unclciin stables with but little fresh air, 

 sanitary milk cannot be expected. AVhen under such 

 conditions for any length of time, the animals be- 

 come unhealthy, and even wliere they themselves 

 are not diseased, the milk as soon as drawn absorbs 

 the unclean atmosphere of the stable, which readily 

 renders it unsound. Lack of cleanliness in the sta- 

 bles and in the care of the animals is one of the most 

 frequent causes of unsound milk. The liquid and 

 solid excrements of the stable are teeming with 

 various ferment bodies, the air is filled with dust 

 particles whieii contain ferments and fermentable 

 substances, and as soon as the milk is drawn it is 

 contaminated. In order to keep the stables in a 

 wholesome condition, a liberal amount of bedding 



