E.O. Adeparusi1, I.O. Oke1,2, A.M. Ijadeyila1 1Department of Fisheries and Aquaculture Technology, School of Agriculture and Agricultural Technology, Federal University of Technology, P.M.B. 704, Akure, Ondo State. 2Department of Fisheries and Aquaculture, College of Agriculture, Lago

E. Videv, J. Krastanov*, S. Laleva, Т. Angelova, M. Oblakova, N. Oblakov, D. Yordanova, V. Karabashev Agricultural Institute, 6000 Stara Zagora, Bulgaria (Manuscript received 24 March 2017; accepted for publication 30 May 2017) Abstract. Investigation for determining the amount of in