Browsing by Author "Rezk, M."

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Effect of some immunostimulants as feed additives on the survival and growth performance of Nile tilapia, Oreochromis niloticus and their response to artificial infection

John, G.; Mesalhy, S.; Rezk, M.; El-Naggar, G.; Fathi, M. (2007)

Type: Journal Article

Four plant based immunostimulants (Echinacea purpurea 0.25 and 1.0 ppt, Allium sativum 3 %, Nigella sativa 3% and Origanum marjorana 2 and 3% and mixture of Allium sativum , Nigella sativa 3:1, 1:3 and 3:3%, respectively ...
Mass spawning of Oreochromis niloticus for fry production: threats and opportunities for small-scale aquaculture and selective breeding

Fessehaye, Y.; Bovenhuis, H.; Rezk, M.; Ponzoni, R.; Komen. H. (2007)

Type: Book Chapter

Mass selection based on mass spawning can present a feasible and low-cost selective breeding scheme. In mass spawning, however, mating is not controlled and a small number of breeding individuals may account for a ...