Browsing Sustainable aquaculture by Author "El-Naggar, G.O."
Now showing items 1-4 of 4
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Effect of garlic, Echinacea, organic green and vet-yeast on survival, weight gain and bacterial challenge of overwintered Nile Tilapia fry (Orechromis niloticus)
Mesalhy, S. A.; El-Naggar, G.O.; Mohamed, M.F.; Mohamed, W.E. (2010)Type: Journal ArticleThe purpose of this study was to examine the effect of some immunostimulants and probiotics on the survival rate, final weight, and disease resistance of overwintered tilapia fry. There were five treatments: T1 (control) ... -
Relative performance of two Nile tilapia (Oreochromis niloticus Linnaeus) strains in Egypt: The Abbassa selection line and the Kafr El Sheikh commercial strain
Ahmed Ibrahim, N.; Abou Zaid, M.Y.; Khaw, H.L.; El-Naggar, G.O.; Ponzoni, R.W.; Nabil Ahmed Ibrahim: 0000-0002-2007-7684 (2013)Type: Journal ArticleThe Abbassa selection line (developed by selective breeding) and the Kafr El Sheikh commercial strain (widely used in Egypt), both Oreochromis niloticus, were compared at two stocking densities (two and four fish m-2). ... -
Technical characteristics and economic performance of commercial Tilapia hatcheries applying different management systems in Egypt
Nasr-Allah, A.M.; Dickson, M.W.; Al-Kenawy, D.A.R.; Mohamed Ahmed, M.F.; El-Naggar, G.O.; Malcolm Dickson: 0000-0003-2181-2625; Ahmed Nasr-Allah: 0000-0001-6299-8556 (2014)Type: Journal ArticleThis study was carried out in order to understand the technical and economic characteristics of different Egyptian Nile tilapia (Oreochromis niloticus) hatchery systems. Hatchery operators at fifty tilapia hatcheries in ... -
Value chain analysis of Egyptian fish seed production
Nasr-Allah, A.M.; Dickson, M.W.; Al-Kenawy, D.A.; Fathi, M.; El-Naggar, G.O.; Azazy, G.E.; Dawah A.; Grana, Y.S.; Diab, A.M. (2014)Type: Conference PaperThe current study is designed to provide more information on one of the main inputs for the Egyptian aquaculture value chains, i.e., the supply of fish seed. The study focused on the four selected governorates, namely ...

