SWINE GEORGE E. DAY. 101 



tion. If the building is not a very long one, the chimney 

 may be constructed at the opposite end of the building from 

 the feed cooker, and the pipe from the feed cooker run the 

 whole length of the building before it enters the chimney. 

 In a long building the chimney may be placed about the 

 center, so as not to have too great length of stove pipe. 

 The heat from the stove pipe has a wonderful influence in 

 aiding the circulation of the air in the pen, as well as modi- 

 fying the temperature and helping to keep the air dry. In 

 fact, where winter litters are raised in large pens, some 

 such device as this is absolutely necessary. 



Light. Light, especially sunlight, has a wonderful influ- 

 ence in promoting health. So far as possible, the windows 

 should be on the south side of the building, because the 

 south side gets the most sun and is least exposed to cold 

 winds. 



Draughts. While ventilation is necessary, draughts are 

 extremely injurious, and their prevention should be kept 

 in view when building. 



Warmth. Warmth is a good thing, but it should not be 

 secured at the expense of ventilation. A somewhat cold 

 pen, well ventilated but free from draughts, is preferable 

 to a warm pen where the air is damp and foul, and the pigs 

 will suffer less discomfort in the former than in the latter. 

 Very young pigs require warmer quarters than older ones, 

 and when a sow farrows in winter, special pains should be 

 taken to secure warmth and freedom from draughts. If 

 she is in a large piggery, it is often a help to lay poles across 

 the tops of the partitions over the bed, and then cover these 

 poles with straw. 



