Flesh and Waste Yields, Proximate and Mineral Compositions of Ctenopoma kingsleyae (Gunther 1896) (Pisces, Anabantidae)

Abstract

Abstract
Ctenopoma kingsleyae specimens obtained from River Oluwa in Agbabu (Ondo State Nigeria)
were analysed for flesh yield, proximate composition, mineral content and amino acid
composition. The relative proportion of flesh, head and viscera to total biomass were
determined in male and female specimens. Flesh yield was 35.91±3.49% and 41.96±3.41 % of
total biomass for male and female; waste yield (head, viscera, scales) was 32.07±1.55% and
35.39±1.26% for male and female fish, respectively. There were positive correlations between
total body weight fish and flesh yield (r2 0.980 and r2 =0.991 for male and female C.
kingsleyae) and between total body weight and total waste (r2 0.902 and 0.938 for male and
female C. kingsleyae), respectively. Female C. kingsleyae had higher protein and mineral
values than male samples. Male C. kingsleyae had higher moisture content than female C.
kingsleyae. Male fish had higher mineral content values than female C. kingsleyae in Na, Mg,
Fe, and Cr while female fish had higher K, Ca, Zn, Cu, Mn and P than male fish. There were
significant differences (PSO.05) in mineral composition ofmale and female C. kingsleyae. High
percentage of protein, mineral content, essential amino acid profile and the high flesh yield
potential as well as low lipid content confirmed that male and female C. kingsleyae are
nutritious and represent a suitable source of animal protein in human diets.