O.A. Oyelese  , 
    Nutrient  Utilization and Growth Performance of Clarias Gariepinus Fingerlings Fed Tilapia (<I>Oreochromis nilotica</I>) fishmeal,
    Journal of Fisheries International,
    Volume 1,Issue 2,
    2006,
    Pages 87-91,
    ISSN 1817-3381,
    jfish.2006.87.91,
    (https://makhillpublications.co/view-article.php?doi=jfish.2006.87.91)
    Abstract: The utilization of cheap, abundant, highly prolific whole Tilapia  (<I>Oreochromis nilotica</I>) for   fish meal in Clarias gariepinus fingerlings  diets as an alternative to conventional Danish fishmeal is tested in this study. The fish meal  was produced and kept for 3 months and the quality was found to be intact,in terms of its proximate composition (crude protein, fat,moisture, crude fibre and nitrogen free extract were the same at the end of the third month). Part of the fish meal  was used in compounding six tilapia fishmeal based  isonitrogenous  diets (0, 20 40, 60, 80 and 100%) of 40% Crude Protein (C.P) to feed <I>Clarias gariepinus</I> fry  (0.517-0.733  gm),  stocked  at 30 fry/250 litre bowl for six weeks, with daily changing of water before feeding. The tilapia fish meal (C.P-65.69%) qualities were intact at 3 months and compare favorably with the 72.00% Danish fish meal with which it was supplemented. Significant variations in terms of growth performance and nutrient utilization p&lt;0.05 occurred at all levels of diet treatments. The Tilapia fish meal (TFD)-80% (SGR-3.68) was the best having the lowest fish mortality rate of 17.48%, lowest food conversion ratio (F.C.R) of 1.4269% and  highest specific growth rate (S.G.R) of 3.68% coupled with highest protein efficiency ratio of 0.2365%. While  the TFDB0% (with no tilapia fish meal inclusion ) had the least growth performance;  with the lowest S.G.R of 1.61%  and  highest mortality rate of 28.01% along with the TFD -20% diet which also recorded mortality of 28.85%
    Keywords: Tilapia (Oreochromis nilotica) fish meal danish fish meal;isonitrogenous diets;Clarias gariepinus fingerlings;growth and nutrient utilization