Osineye Oluseun Motunrayo
Federal College of Fisheries and Marine Technology, Nigeria
Title: Comparative effects of different sources of protein on the performance of Clarias gariepinus
Biography
Biography: Osineye Oluseun Motunrayo
Abstract
Four hundred and eighty (480) fingerlings of Clarias gariepinus were randomly allotted to seven isocaloric and isonitrogeneous dietary groups, replicated thrice in a completely randomized design, in an 8-week feeding trial. Parameters measured are dry matter intake, weight gain, feed conversion ratio, digestibility, protein efficiency ratio and specific growth rate.The results revealed that, although the efficiency of coppens in all the parameters measured was significantly (p<0.05) higher than any of the other diets, but the values recorded for diets 4 and 5 (with Danish fishmeal and Soybean meal + Methionine as protein sources respectively), were comparable to values recorded for coppens, as follows: Coppens, Local fishmeal, Maize + Soybean meal, Danish fishmeal, Soybean + Methionine, Blood meal, Chicken Intestine meal and Chicken feather meal respectively recorded 16.98, 8.27, 6.99, 12.61, 11.92, 6.97, 5.95 & 4.20, for Mean Weight Gain(g); 3.45, 2.67, 2.81, 3.08, 3.33, 2.75, 2.20 & 2.12, for Specific Growth Rate; 1.78, 3.16, 3.46, 2.60, 2.78, 3.82, 3.96 & 4.20, for Feed Conversion Ratio; 42.57, 30.07, 35.08, 41.62, 36.96, 35.82, 33.37 & 32.93, for Protein Efficiency Ratio; 30.22, 26.13, 24.19, 32.79, 33.14, 26.63, 23.56 & 17.20, for Dry Matter Intake(g); 90.4, 69.4, 81.8, 74.4, 66.8, 60.7 & 34.3, for digestibility(%); 700, 141,127,219,395,93,88 & 88, for cost of 2kg feed (N:k). Soybean meal+ Methionine, as protein source has been shown in this study to be most profitable when the cost is considered.