Oluwabusayo Irivboje & Omobola Olufayo

Exogenous nutrients are injected into the amnion of a late-term avian embryo during in ovo feeding in order to promote post-hatch growth, immunological responses, and gastrointestinal tract development. In this study, the effects of aqueous extract oyster mushroom (AEOM) injections at different doses (0, 0.1, and 0.2 mL) on broiler chicken hatching features were examined. For the experiment, a total of 744 viable eggs were used. The eggs were placed in the incubator after being weight-balanced and fumigated. Eggs were candled on the fourteenth day of incubation, and in ovo injection of (AEOM) was given on the eighteenth day. Data collected were subjected to oneway Analysis of Variance in a Completely Randomized Design. The findings indicated that in ovo injection of AEOM considerably (p<0.05) altered hatchability %. The 0.2 mL AEOM-injected eggs had the best hatchability (64.58%), while the control (0 mL) eggs had the lowest hatchability (38.41%). The study found that broiler egg hatchability was improved by in ovo injection of AEOM at 0.2 mL/egg. Keywords: In ovo, oyster mushroom, hatching, poultry, broile 0150