Construction of Stables 153 



the afternoon. This is most desirable during the 

 winter months, in order to give as much direct sun- 

 light as possible to the stables, because of its effect in 

 promoting the general health of the cattle, as well as 

 in destroying or retarding the development of bacteria. 



The amount of window surface in the cow -stable 

 should at least be sufficient to provide four square feet 

 of clear window surface per cow. If this amount, or 

 more, is provided, and the windows are fairly well dis- 

 tributed, the stable will be sufficiently well lighted for 

 all practical purposes. While some may desire more 

 than this, yet, if the building is so situated that the 

 windows will admit direct sunlight, the window surface 

 stated will be quite sufficient. 



In constructing a stable, it should be made suffi- 

 ciently large to give each animal at least 600 cubic 

 feet of air space. If a less amount is provided, >t 

 will be found more difficult to keep the air pure wUh- 

 out causing perceptible drafts of air produced by ven- 

 tilation. The ideal ventilation secures a gradual 

 change without producing drafts, and yet sufficient to 

 maintain the desired degree of freshness. 



The ease with which the stable may be cleaned is 

 an important consideration. Not only should it be so 

 constructed that it is easy to remove the voidings of 

 the animals, but it is necessary to prevent accumula- 

 tions of dust in any part of the stable, as well. It is, 

 of course, impossible to so construct a practical stable 

 that dust will not settle in some places. This, how- 

 ever, should be removed frequently, so there shall be 

 no accumulation. 



