SUMMER FEEDING 49 
Roosts in Brooder House. Assuming 
that the male birds have been taken out of 
a brood of four hundred to five hundred 
chickens, and the mortality has been ap- 
proximately 10 per cent, which is average 
under ordinary conditions, there will be left 
approximately two hundred to two hundred 
and twenty-five pullets in the house. This will 
be a satisfactory and manageable number. 
Whenever the pullets begin to show a de- 
sire to roost, additional temporary roosting 
poles should be placed in the building so 
that all the birds will learn to go to roost. 
If some of them are obliged to remain on the 
floor, there will be difficulty in teaching them 
to go to roost when they are transferred to 
winter quarters. This will be avoided by 
seeing to it that there are enough roosts in 
the brooder house. 
Cleanliness. The brooder house should 
be cleaned out at least once a week during 
the summer. It should be sprayed every two 
or three weeks with a strong solution of some 
good coal-tar spray. Any of the standard 
commercial sprays on the market will be 
satisfactory. After the house, the floor, and 
