John H. Robinson, Our Domestic Birds: Elementary Lessons in Aviculture
“ If the trough stands high enough from the floor to keep the contents clean, it will do no harm if more food is given than the birds will eat up at once, but the quantity given should never be so great that it will not be eaten before the next feeding time.Most people find the morning the most convenient time to give the mash. If the mash is fed in the morning, a small feed of hard grain should be given about noon, and a more liberal one an hour or two before sunset. Some poultry keepers feed the different grains separately; others mix them before feeding. ”
