Salele, H.A. et al. 2023. Effects of Roselle (Hibiscus sabdariffa) Calyx as Dietary Additive on the Growth Performance, Nutrient Utilization, and Haematological Parameters of Clarias gariepinus Fingerlings. UMYU Scientifica. 2, 1 (Mar. 2023), 68–75. DOI:https://doi.org/10.56919/usci.2123.009.