This study was carried out to assess the effect of oyster mushroom (Pleurotus ostreatus) and
probiotic alone or their combination on the growth performance, organs relative weight
and some blood attributes of male broilers. A total of 256 male chicks (Ross 308) were
randomly assigned to four treatments with four replications (16 birds per replication).
The experimental treatments were maize–soybean meal basal diet and basal diet supplemented
with 2 g/kg of oyster mushroom or 450 mg/kg of probiotic, or their combination.
Results showed that the inclusion of the oyster mushroom powder decreased (P