SHELTER FOR SWINE 249 



or the width of the alley of a different dimension, the 

 depth of the pens may be changed accordingly. The 

 width of the pens is taken arbitrarily at ten feet because 

 this is a convenient size and affords room for the feed 

 trough and a sleeping place at one side of the pen, and 

 the doors leading to the alley on the inside and to the 

 pens on the outside of the house on the other side. The 

 doors leading to the inside are represented by N and 

 those leading to the outside by M. L shows the arrange- 

 ment of the feed troughs. These, as will be seen, are 

 placed at the side of the pen along the alley. Imme- 

 diately above the trough is a swinging panel as shown in 

 the cut, page 251. This panel may be swung in at the 

 bottom and fastened with a latch that is seen across the 

 center of the panel, thus shutting the pigs away from the 

 trough while the feed is being put into it. After the feed 

 is in, this panel is swung back and the pigs given access 

 to the slop. 



K in cut 30, page 248, represents the fender. This is a 

 two-inch tubular iron bar set on posts of the same dimen- 

 sions in concrete in the floor. The purpose of the fender 

 is to prevent the sows from overlying their pigs or crush- 

 ing them to death against the walls. This bar is placed 

 about ten inches above the floor and six inches from the 

 wall. It is not necessary to have this extend all the way 

 around the pen because the sow will necessarily make 

 her nest in this corner. The front part of the pen is occu- 

 pied by the trough and the side of the pen, apart from the 

 place where the fender is, is taken up by the doors, one 

 leading to the alley and the other to the outside. A 

 shows the pens on the outside of the house, which are of 

 the same width as the pens on the inside and are of con- 

 venient length. These give the pigs an opportunity to 



