ARTIFICIAL BROODING 



233 



side the building. On such occasions a lamp capable of 

 burning two full days is a practical necessity. 



Besides furnishing the desired tenaperature, an efficient 

 heater will be the means of supplying fresh air to the hover. 

 If properly constructed it will constantly warm fresh -air 

 and pour it into the hover chamber as shown in Figs. 114 

 and 116. Any brooder which is supplied with a heater which 

 does not furnish this service should be looked on with 

 suspicion. For reasons more fully discussed in Chapter VI, 

 a constant supply of fresh air is eminently necessary to the 

 full vitality of fowls. This is, if anything, more true of the 



Fig. 113 



Showing parts of an outdoor brooder. (Courtesy of Cyphers Incubator 



Company.) 



young fowl than of the old one. The proper temperature of a 

 brooder is so generally recognized as an absolute essential 

 that it is usually fairly well looked after. A generous supply 

 of fresh air, which unfortunately cannot be gauged by any 

 indicator comparable to the thermometer, is fully as essential 

 to the proper thrift of the chicks as a right temperature, 

 though failure to supply it may not be so quickly manife^ 

 in the chicks. • 



The heater must be fully protected against the possibility 

 of fire. It is likely to be less carefully constructed in 

 this particular than incubators. Fire is always dangerous 



