المنشورات و المؤلفات

A 12-week long feeding experiment was initiated to evaluate the effect of dietary supplementation of red algae, Gracilaria arcuata, on the growth performance, feed utilization and body composition of Nile tilapia Oreochromis niloticus (Linnaeus,...
This study examined the full and partial replacement of the ®sh meal component of practical diets with commercial poultry by-product meal (PBM) for juvenile African cat®sh Clarias gariepinus (Burchell 1822). Six test diet formulations were based on...
Olive waste was evaluated as a substitute ingredient for wheat bran in tilapia (Oreochromis niloticus) diets. Five experimental diets viz., 0 (control), 25, 50, 75 and 100% olive waste (OW) replaced with wheat bran were prepared and randomly...
Abstract: The study evaluated the dressing percentage, nutritional quality and mineral composition of six commercial fish species (Scads, Alepes djedaba, Emperors, Lethrinus lentjan, Kingfish, Scomberomorus commerson, Jobfish, Lutjanus malabaricus,...
In the present study the toxic effects of zinc (Zn) on the liver structure of Nile tilapia, Oreochromis niloticus were investigated. Additionally, we estimated whether Zn concentration and exposure period influence the degree and nature of...
Abstract. – The apparent digestibility coefficients of dry matter (ADC DM), protein (ADCp), essential amino acids (ADC EAA), and energy (ADCe) for Nile tilapia of a selected range of animal and plant feed ingredients found in Western European and...
Freshwater fish Oreochromis niloticus were exposed to sublethal concentrations of zinc for short and long terms. Responses of hematological parameters which include red blood cells count (RBC) and hemoglobin content (Hb) were investigated. Serum...
The present study was performed in earthen ponds with a total area of 1.25 feddan each and water column of 1.25 meter. The objectives of this study were to evaluate the effect of source of fertilizers (organic and inorganic) on growth performance,...
The influence of replacing diet fish meal LT94 (FM) with different levels of full fat soybean meal (FFSB) on growth performance and enzymes activity in stomach, hepato-pancreas and intestine were investigated for Nile tilapia Oreochromis niloticus....
Abstract.- Cadmium (Cd) is one of the most harmful heavy metal pollutants in aquatic environments. Fingerlings of Nile tilapia, Oreochromis niloticus, were exposed to sublethal concentrations (10, 20 and 30% of the 96-h LC50) CdCl2 which caused...
This study was conducted to assess the potential use of maize gluten meal (MG) as a substitute protein source for the African catfish, Clarias gariepinus. Four experimental diets formulated with different substitution levels of MG (control 0, 25, 50...
Abstract The body composition of Nile tilapia (Oreochromis niloticus) collected from drainage canals in Al-Ahsa, Saudi Arabia and the concentration of four heavy metals; zinc (Zn), cadmium (Cd), cobalt (Co) and lead (Pb) in both fish muscles and the...
Abstract Oreochromis niloticus, weighing 36.45± 1.12 g were exposed to 10%, 20% and 30% of the LC50 of CdCl2 which represents treatments (T1)1.68, (T2)3.36 and (T3)5.03 mg/l, respectively, for a period of 10, 20 and 30 days. It was found that,...
Abstract Fingerlings of Nile tilapia Oreochromis niloticus were exposed to 1.68, 3.36, and 5.04 mg/L cadmium (as CdCl 2 ), which represent 10%, 20%, and 30% of their previously determined 96-h LC 50 . After exposure for 20 days, sections of the...
Abstract The aimof this study was to evaluate the use of driedmarine seaweed, Gracilaria arcuata for the first time as dietary ingredient in partial substitution of fishmeal on the growth performance, feed utilization and body composition of African...
Abstract This study aimed to evaluate the effects of diet containing the green macroalgae, Ulva   lactuca, on the growth performance, feed utilization and body composition of African catfish Clarias gariepinus. Four experimental diets were...