Obike, O.M., Obi, O.C., Aso, R.N. and Onunkwo, D.N. 2020. Variation pattern in production traits of broiler strains reared in a humid tropical environment. Nigerian Journal of Animal Production. 44, 4 (Dec. 2020), 270–278. DOI:https://doi.org/10.51791/njap.v44i4.580.