The experiment was a completely randomized design and dietary treatments were as
follows: (1) a maize-soybean meal based diet as control, (2) control diet contained 2 g/kg of oyster mushroom powder, (3)
control diet contained 450 mg/kg of probiotic (PrimaLac, a multi-strain probiotic which is the combination of some strains
of beneficial bacteria such as Lactobacillus acidophilus, Lactobacillus casei, Bifidobacterium bifidium, Enterococcus faecium