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Oreochromis niloticus; biomarkers; complement; ecotoxicology; evolution; fish; health status; immune system; lectins; models; shellfish; water quality
Abstract:
... As the earliest known vertebrate possessing a complete immune system, teleost fish played an important role in the evolution of this system. The complement system is an ancient defense mechanism present in invertebrates and vertebrates. In teleost fish the complement system is formed by more than 35 circulating proteins, or found at the cell surface. This system is activated by three pathways: alt ...
... The indiscriminate use of pesticides has led to an increased risk of environmental contamination and pest resistance worldwide, favoring the development of less hazardous formulations. The commercial insecticide ZEUS® (Ihara, Brazil) combining dinotefuran and lambda-cyhalothrin was recently formulated in order to meet the environmental sustainability and food security. However, little is known abo ...
Afaf N. Abdel Rahman; Gehad E. Elshopakey; Amany Behairy; Dalia E. Altohamy; Amany I. Ahmed; Khaled Yehia Farroh; Mohamed Alkafafy; Shimaa A. Shahin; Rowida E. Ibrahim
... Several studies have looked into the use of basil, Ocimum basilicum (L.) in aquaculture as a dietary additive; however, more research is needed to see the possibility of it's including in nanocarriers in aquafeeds. An experiment was undertaken to highlight the efficacy chitosan-Ocimum basilicum nanocomposite (COBN), for the first time, on Nile tilapia (Oreochromis niloticus) growth, stress and ant ...
... The supplementation of fish feed with fermented soybean meal (FSBM) as an additive is widely used to produce aquatic feed. However, the mechanism by which FSBM regulates gut microbes in fish are still largely unknown. In the present work, soybean meal fermented by Lactobacillus fermentum (Lactobacillus group), Bacillus natto (Bacillus group), and Saccharomyces cerevisiae (Saccharomyces group) was ...
... Flame retardants are compounds added to a high diversity of polymers used in electronics and furniture to decrease the risk of combustion. Decabromodiphenyl ether (BDE-209) is a polybrominated diphenyl ether (PBDE) congener still used worldwide, while 2, 4, 6-tribromophenol(TBP) is a PBDE metabolite used as a pesticide and flame retardant for wood conservation. These compounds have lipophilic prop ...
Heba H. Mahboub; Hassnaa Mahmoud Elsheshtawy; Nagwa I. Sheraiba; Esra.M. Fahmy; Shimaa R. masoud; Eman A.A. Mohamed; Noha S. Abdelnaeim; Dalia Ibrahim Mohamed; Tamer Ahmed Ismail; Shaimaa A.A. Ahmed
... The present study assessed the protective aspects of the dietary exposure to black cumin (Nigella sativa, NS) powder on immune response, liver and kidney enzymes, tissue antioxidant capacity, gene expression, and testing the antibacterial activity against Burkholderia cepacia (B. cepacia, BC). Nile tilapia (O. niloticus) (n = 150) were divided into 5 groups, the first was control (Cont) neither ch ...
... The current study investigated the effects of dietary curcumin nanoparticles (C-NPs) on the performance, hemato-biochemical profile, digestive enzymes activities, antioxidant status, humoral immunity, and liver and intestinal histology of Nile tilapia (Oreochromis niloticus). Fish (4.3 ± 0.5 g) were fed with diets enriched with 0.0 (control), 15, 30, 45, and 60 mg C-NPs/kg diet up to apparent sati ...
... Bifenthrin (BF), third-generation synthetic pyrethroids (SPs), is extensively used as an insecticide for its higher killing activity, upgraded stability, and lower mammalians toxicity, compared to earlier SPs. The monitoring of high concentrations of BF in aquatic environment addresses a significant concern to aquatics including fish. In the current investigation, O. niloticus fish was subjected t ...
... Considering the constant exposure of fish to copper oxide nanoparticles (CuO-NPs) and copper sulphate (CuSO₄) in natural aquatic environments as a result of increased usage of these chemicals in industry, medicine and aquaculture/agriculture over the past few decenniums, the current investigation aimed to reveal their comparative hemotoxic effects on freshwater fish Oreochromis niloticus by measur ...
... This study investigated the protective effect of dietary cinnamon (Cinnamomum zeylanicum) powder (CzP) on the growth performance, haemato-biochemical, innate immunity, and hepatic antioxidant indices of tilapia (Oreochromis niloticus) fingerlings against the toxic effect of prolonged lead (Pb) exposure. Fish (22.6–25.3 g) were fed on diets supplied with two CzP levels (0.0 (control) and 10 g/kg di ...
... Five isonitrogenous diets were formulated to comprise two forms of zinc (Zn): convention zinc oxide named Bulk-ZnO or zinc oxide nanoparticles (Nano-ZnO) supplemented at two levels 30 and 60 mg kg⁻¹ compared to the control diet. Nile tilapia, Oreochromis niloticus, fingerlings (5.02–5.05 g) were fed tested diets two times a day for 84 days. The results displayed that the best growth and digestive ...
Rowida E. Ibrahim; Gehad E. Elshopakey; Ghada I. Abd El-Rahman; Amany I. Ahmed; Dalia E. Altohamy; Asmaa W. Zaglool; Elsayed M. Younis; Abdelwahab A. Abdelwarith; Simon J. Davies; Helal F. Al-Harthi; Afaf N. Abdel Rahman
... Our study proposed a promising anti-fungal therapy to control Saprolegnia spp. infection in Nile tilapia (Oreochromis niloticus). A Moringa oleifera synthesized silver nanoparticles (MS-AgNPs) showed an in vitro anti-fungal activity against Saprolegnia spp. with an inhibition zone of 18 mm. A total of 220 O. niloticus (45 ± 0.56 g) were used in this study. A preliminary investigation was conducted ...
... Although, copper (Cu) is commonly used in aquaculture as a chemotherapeutic agent to prevent and control algal blooms and bacterial infections, it could negatively impact the health and performance of aquatic animals. Moreover, sodium butyrate used as a feed additive plays a potential role in improving the performance and well-being of many aquatic species. Therefore, in this study, Nile tilapia, ...
... Changes in environmental conditions in aquatic ecosystems caused by anthropic actions can modify the composition of primary producers, promoting the excessive proliferation of cyanobacteria. These organisms can form cyanobacterial blooms, which directly affect aquatic life. The present study investigated the mutagenicity of the cyanobacterium Sphaerospermopsis torques-reginae (strain ITEP-024), gu ...
... Spirulina platensis is, a freshwater microalga, broadly used worldwide. It not only stimulates the immune systems of aquatic organisms but also provides a protein-rich diet and commonly used in the manufacture of aquafeeds. This study was planned to evaluate the growth performance, hepato-renal, and immune response biomarkers of Spirulina and Betaine on Nile tilapia (Oreochromis niloticus) and the ...
... The aim of this study was to determine the toxic effects of aluminum oxide nanoparticles (Al₂O₃ NPs) on oxidative stress, stress protein, and genotoxicity parameters in Oreochromis niloticus. Ninety-six-hour LC₅₀ value of Al₂O₃ NPs was found as 52.4 ppm for O. niloticus. The fish were exposed to 2.6 ppm (5% of the 96-h LC₅₀) and 5.2 ppm (10% of the 96-h LC₅₀) for 3 days and 7 days. Various biochem ...
... The impacts of the Batts drain on two chronically exposed fish (O. niloticus and C. gariepinus) were assessed using multiple biomarkers. Concentrations of metals in water and sediments (Cu, Zn, Fe, Cd, Pb, and Al) showed significant elevations near the Batts discharges (site 2) compared to the reference site (site 1). The liver and gills of fish collected from site 2 showed marked elevations in th ...
... Tilapia is one of the most consumed farmed fish, which requires the use of antibiotics in certain phases of its production. This study assessed the safety of 30 days of oral florfenicol (FFC) dosing at 0–10 times the therapeutic dose (1 × : 10 mg/kg biomass/day) in Oreochromis niloticus juveniles. Behavioural changes, feed consumption, mortality and biomass were evaluated. Besides, the levels of s ...
Mohsen Abdel-Tawwab; Ahmed G.A. Gewida; Mohamed F. Abdelghany; Mamdouh A.A. Mousa; Nashwa Abdel-Razek; Eman A.A. Abdel-Hamid; Sherien H.H. Shady; Ahmed Mamoon
... Microalgae have been efficiently used as a feed supplement to enhance the fish performance and welfare because of their unique nutritional properties and functional bioactive ingredients. In this context, the current study assessed the effects of enriching fish diets with the green microalga Scenedesmus quadricauda (SQ) on the growth, digestive enzymes, antioxidant status, mucosal and innate immun ...
... The burden of pesticide use from agricultural intensification lies in the fact that pesticides may end up in aquatic ecosystems and have pernicious effects on non-target organisms, including fish. Different blood biomarkers, including hemato-biochemical indices, erythrocytic nuclear abnormalities (ENA), and erythrocytic cellular abnormalities (ECA), were observed in Nile tilapia (Oreochromis nilot ...