Garba, H., J. Musa, S .S. A. Egena, and I. C. Alemede. 2020. “Evaluation of Haemoglobin Variants of Red Sokoto Goats and Yankasa Sheep in Beji, Niger State, Nigeria: Effect on Body Weight and Reproductive Parameters”. Nigerian Journal of Animal Production 44 (4):38-47. https://doi.org/10.51791/njap.v44i4.567.