234 



POULTRY PRODUCTION 



and the best protection is none too good.' It is poor practice 

 to use a brooder that has been slighted in this particular 

 in order to reduce the price. 



Showing the course taken by fresh air in reaching the chicle compartment 

 in an adaptable hover. Fresh air enters the heater box at A and is forced 

 through the chamber lying between the direct heat flue, B, and the outer 

 jacket, C. It is here warmed and discharged into the chick compartment 

 at D and D. (Courtesy of Cyphers Incubator Company.) 



Fig. 115 



A portable hover. (Courtesy of Prairie State Incubator Company.) 



The best types of bi-ooders all supply the heat from above 

 the chicks, whether the method is radiation or diffusion, 



