A5019341315- Fish Biology and Ecology Studies
- Aquaculture Nutrition and Growth
- Aquatic life and conservation
- Aquaculture disease management and microbiota
- Aquatic Ecosystems and Biodiversity
- Therapeutic Uses of Natural Elements
- Vitamin C and Antioxidants Research
- Water Quality and Pollution Assessment
- Environmental Toxicology and Ecotoxicology
Central Laboratory for Agricultural Climate
2006-2025
Abstract This study evaluated the effects of Biocide, containing silicon tetrahedrons and organic acids, on growth performance, feed utilization, immune response, oxidative status in Nile tilapia ( Oreochromis niloticus ). A total 300 fingerlings (initial weight: 3.55 ± 0.01 g) were distributed across 15 tanks fed diets 0.0 (control), 0.25, 0.5, 1, 2 g kg⁻¹ Biocide for 90 days, with three replicate per treatment. is enriched acids (fumaric acid citric acid) amino (glutamine, tyrosine,...
Abstract This study investigated the effects of dietary supplementation with product Hilyses on growth performance, feed utilization, nutrient composition, hematological parameters, serum biochemistry, immune function, antioxidant status, and digestive enzyme activity in juvenile Nile tilapia ( Oreochromis niloticus , initial body weight 4.24 ± 0.01 g). The fish were fed diets supplemented at concentrations 0, 1, 2, or 3 g/kg for a period 8 weeks. results showed that levels up to 2 diet...
In Egypt, the reuse of agricultural drainage increases country’s available water resources by 20%. The aim this study was to assess impact on accumulation heavy metals and pesticide residues Nile tilapia (Oreochromis niloticus) reared in earthen ponds. Six ponds (2 hectare for each) two fish farms located at same area (3 each farm). first pond group irrigated fresh irrigation (IW) 2nd (in another farm) supplied (ADW). Each stocked with 40000 (2.22±0.1 g) fed 25% CP diet a daily rate 3% total...
The present study aimed to analyze the effect of stocking densities and feeding rates on growth performance fish production O. niloticus reared in earthen ponds. This experiment was conducted for 7 months extended from May November, 2016 12 ponds at Parsik Culture, Idko, Behira Governorate, Egypt. Each pond has 2 feddan with an average depth 1.0 m. Monosex fries Oreochromis were divided into 4 treatments {T1: density 6 fish/m3 a rate 2.5%; T2: 3.5%; T3: 8 fish/ m3 2.5% T4: 3.5%}, each...
his study was carried out to investigate the growth performance of Nile tilapia , Grey mullet and Common carp fish species stocked at higher rates reared in earthen ponds as well pond productivity affected with different feeding levels.Eight were used; each a total area 8000 m 2 represented four levels (1.5 2.5 3.5 4.5 % biomass fish) two replicates for level .Fish densities 48000 9000 3000 an average initial weight 25, 8 5 g respectively .The experiment expanded months after start.Results...
stocking density feeding rate water quality phytoplankton abundanceThe present work aimed to study the effect of and rates Oreochromis niloticus on abundance in earthen ponds.This experiment was conducted 12 ponds at Parsik Culture, Idko, Behira Governorate, Egypt.The have same area about 2 feddan with an approximately average depth 1m.Monosex fries reared for 214 days different densities (T 1 : 6 fish/m 3 2.5%; T 3.5%; 8 fish/ m 2.5% 4 3.5%), each treatment had three replicates.Results...
This study aimed to evaluate the effect of both different initial weights and stocking densities on growth performance, productivity total economic revenue Nile tilapia reared in earthen ponds under Egyptian conditions.Twelve with an area 2 feddans were divided into two groups according fish weight, fingerlings (10 g) fry (0.3 g.),Each group had three carrying capacities 30, 40, 50 thousand / pond.The water quality measurements sustained at recommended limits, temperature ranged from 23 29ºc...
A feeding trial for 56 days was conducted to investigate the optimum dietary protein and stocking density that could give maximum growth performance of Pangasius catfish, hypophthalmus.Twenty-seven tanks (150 Liter) were used random distribution fingerlings (5.5±0.2 g) at three densities; 10, 15, 20 fish/tank.Fish each fed either formulated diet 30, 35, 40% crude (CP).Pangas one tested diets up apparent satiety twice a day 09:00 14:00 h.The recorded fluctuation water parameters within normal...