BROODER HOUSES 349 
Fic. 163.—Three different types of long brooder houses. A, Feed house and boiler 
room in centre. ‘The high fences make it possible to keep adult birds in the runs when 
they are not used for chicks. B, Wide ‘‘half-monitor”’ type of roof, allowing a centre walk 
.and. brooder-pens.on -each-side:--C, House-with gable-reof and automatic ventilation. 
