A ? of feeding time after work out

Is there an optimal time of feeding after you work your cocks?A cocker told me that he will work his birds in the morning and feed in the evening.
I helped my dad feed and work his dogs he always fad a half hour to a hour after the dogs had cooled down he always said he did this to prevent the body
from using the nutrients that are stored in the muscle.I know that cocks are not dogs can this principle be used?If so how many of you do this?

THANKS.