We give the temperature standards in Table 1 but again,
the observation of the flock is the best indicator of real
needs. When birds are crowding, temperature is too low.
When birds are inactive, lethargic and spreading away
from the heat source, temperature is too high.
Some events in the flock (e.g. Post vaccine reaction)
might require an increase in the temperature temporarily,
to help the chicks to cope with the stress.