from drafts and to limit the area available for the chicks,
which then remain closer to the brooder, drinkers
and feeders, in addition to prevent the dissipation
of the heat generated by the brooder (Ávila, 2004).
However, the brooding circles must be enlarged as
chicks grow, and, although their removal depends on
environmental temperature, it is recommended that
they are removed when broilers are 18 to 21 days old