124 



COMMERCIAL POULTRY RAISING 



It affords a breeding ground for lice and mites, and it cannot be 

 cleaned. Then, too, it is inflammable. 



Openings. — The best arrangement is to have all the openings 

 in the house on one side^-the front wall — so that by keeping the 

 other three sides tightly closed, drafts are prevented. 



Too much glass in a poultry house makes it cold in winter and 

 hot in summer. In recent years curtain frames have taken the 



(Courtesy Cornell Experiment Station) 



Fig. 86. — Framing for a continuous poultry house. Note the concrete walls; 

 building is intended to have a dirt floor. 



place of glass windows to a great extent. In fact, many farms 

 use curtain frames exclusively, although this practice makes for 

 a dark interior, when on very stormy days it becomes necessary 

 to close the curtains. The semi-open front house should consist 

 of one-third board partition for its front wall, commencing at the 

 floor line, one-third curtain frame openings, and one-third win- 

 dows and ventilators. See Fig. 84. 



Curtain Frames. — A medium-weight, unbleached muslin is 



