9 CFR 145.21 - Definitions.
Except where the context otherwise requires, for the purposes of this subpart the following terms shall be construed, respectively, to mean:
Chicks. Newly hatched chickens.
Egg type chicken breeding flocks. Flocks that are composed of stock that has been developed for egg production and are maintained for the principal purpose of producing chicks for the ultimate production of eggs for human consumption.
Started chickens. Young chickens (chicks, pullets, cockerels, capons) which have been fed and watered and are less than 6 months of age.