Growth performance, feed utilization and blood components of Nile tilapia Oreochromis nilotics as affected by dietary protein source and zinc supplementation.
Prof. Dr. Ayyat Mohamed Salah (Zagazig University), Fayza S. Abbas, El-Marakby H.I. (Central Laboratory for Aquaculture Research), Safaa M. Sharaf (Suez Canal University)
IntroductionAquaculture technology has evolved the push toward faster growth and higher production of fish has involved the enhancement or replacement of natural foods with prepared diets. Shiau et al. (1989) indicate that when dietary protein was suboptimal (24%), up to 67% of the fish meal protein in tilapia feeds can be replaced by soybean meal protein without any adverse effect on tilapia grow...