Dairy Cattle 



369 



salt. It is a good plan to place an ounce in the feed each day 

 and also to have rock salt in boxes in the yard where she can 

 lick it as wanted. If a cow obtains abundant salt, she will 

 drink much water, which, as stated above, is an advantage. 



190. Stables for dairy cows. If a cow is to produce the 

 maximum quantity of milk, she must be kept in clean, com- 

 fortable quarters. The essentials of such quarters are that 

 they have plenty of light, plenty of fresh air with no drafts, 

 be convenient for the attendants, and have a floor that can 

 be kept clean. This does not mean that the stables must be 



FIG. 147. Dairy barn plentifully supplied with windows. 



expensive, because good practicable stables embodying these 

 features can and are built at a relatively low cost. 



Light. It is almost impossible to have too many windows 

 in a cow stable. There should be at least four square feet of 

 window-space for each animal. Sunlight is an enemy to bac- 

 teria, which are responsible for unhealthful, impure milk and 

 many diseases of the cattle. In the stable plentifully supplied 

 with light, it is easy to see dirt that accumulates and get rid 

 of it. In Fig. 147 is shown a modern dairy stable plentifully 

 supplied with windows. 



Ventilation. When the windows can be kept open, the 

 stable can be ventilated through them, but in cold climates 

 2 B 



