Fig. 1. Proposal for a yearly chicken production cycle involving six successive flocks
of broilers. Chemotherapy comprises an anticoccidial program involving synthetic
drugs, ionophores, or a potentiated ionophore (see text). Litter is removed (cleanout)
after the second flock. The Figure is based upon an illustration by Chapman,
H.D. in Poultry Health Today.com, 2014.