314 



MILK 



intellisent usage, but when this is exercised there is a saving in 

 time and money and dairying as a source of profit is encouraged. 



I 



Fig. 131. — Various styles of teat cup connectors of Burrell-Lawrenee-Ken- 

 nedy machine. Blocks sliow sizes of filters. (Harding, Wilson, and Smith, 

 Bull. No. 317, New York Agric. Exp. Sta.) 



From a sanitary ]ioiiit of view the reduction of the germ content 

 and the small chance of infection reaching the milk are the chief 

 advantages. 



Contamination from Utensils 



Utensils may contribute largely to the germ content of milk. 

 It is very probable that under ordinary farm conditions the 

 utensils are, in reality, the most prolific soiu'ce of bacteria, a greater 

 source perhaps than the cow. In both cases cleanliness and 



