of faeces. This reservoir chicken was treated for other parasitic,
bacterial and viral infections except that of coccidia.
A gram of filtered faeces was obtained from the reservoir
chicken, dissolved and administered orally to each chicken
in T1-T5 except T6. By implication, the chicken received
approximately 3200 Eimeria oocysts. The McMaster technique
was used to monitor the oocyst output in the stool of
the infected chicken (Christensen et al., 1987).