Assessment of certain heavy metals (mercury and cadmium) and hormonal (methyltestosterone and trenbolone acetate) residues in farmed Oreochromis niloticus and mitigation of heavy metal residues using acetic acid immersion | ||||
| Menoufia Veterinary Medical Journal | ||||
| Volume 1, Issue 1, August 2025, Page 1-11 PDF (501.62 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/vmmj.2024.325745.1017 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Eman Moawad Shehata  1; Abdelrahman Elbagory2; Mohamed Ahmed Hassan3; Marwa Awad Mohammed4; Islam Sabeq5
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| 1Food Hygiene and Control Department, Faculty of Veterinary Medicine Shebin El˗kom, Menoufia University | ||||
| 2Department of Food Hygiene and Control, Faculty ofVeterinary Medicine, Menoufia University | ||||
| 3Professor of Meat Hygiene and Head of Food Hygiene and Control Department Faculty of Veterinary Medicine - Benha University | ||||
| 4Asst. Lecturer , of milk Hygiene and Control Department Faculty of Veterinary Medicine shebien Elkome– EL Monofia University | ||||
| 5Food Hygiene and Control Department, Faculty of Veterinary Medicine, Benha University, Egypt | ||||
| Abstract | ||||
| Tilapia nilotica is regarded as a crucial component in Egyptian fish aquaculture. Heavy metals impair fish health and ecosystems, and also pose a significant risk to human health, whenever consumed with contaminated fish. The unconscious use of hormones in aquaculture production has sparked great debate among researchers due to the potential hazards to human health. The present investigation objective was to assess the frequency of mercury (Hg), cadmium (Cd), Methyltestosterone (MT) and Trenbolone acetate residues in farmed Nile tilapia fish (Oreochromis niloticus) in Kafr El Sheikh, Egypt, and judge their acceptability compared to the tolerable daily intake and maximum residue limits (MRLs) of the National Egyptian Food Safety Organization (NFSA), CX/MRL2-2018.Then mitigation of heavy metals through immersion in acetic acid solution (5%). Sixty farm fish samples of O. niloticus collected from three separate fish farms, A, B, and C (20 of each) at Kafr Elsheikh governorate. In farms A, B, and C, the average Hg value was 0.87±0.01 mg/kg, 0.61±0.01 mg/kg, and 0.43±0.01 mg/kg, respectively. Meanwhile the average Cd value was 0.32±0.01 mg/kg, 0.17±0.01 mg/kg, and 0.09±0.01 mg/kg, respectively. The average values of MT and trenbolone acetate were 1.13 ± 0.01, 0.89 ± 0.01and 0.41 ± 0.02 μg/Kg and 0.36 ± 0.01, 0.21 ± 0.01 and 0.10 ± 0.01 μg/Kg, respectively. According to MRLs of Hg 33.3% (20/60) of total examined fish samples were unsuitable for human consumption, 23.3% (14/60) exceeded the cadmium MRL recorded by EOS, | ||||
| Keywords | ||||
| Tilapia; Cadmium; Mercury; acetic acid; Hormones | ||||
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