Md. Hamidur Rahman, Nadira Sultana, Anugrah Ricky Wijaya, Mst. Nusrat Jahan, Famous Sarker, Md. Asadujjaman, Fatema Jahan, Md. Jahid Hossain, Sultana Parvin Mukta, Al Shariar Romjan, Md. Abdus Salam, Mst. Nusrat Jahan Eaty, Antora Yeasmin, Mehedi Hasan, Rizwan Ahmed Sajin, Md. Sazzad Hossain
The present study aims to assess the levels of selected heavy metals—zinc (Zn), chromium (Cr), cadmium (Cd), lead (Pb), and arsenic (As)—in commercial fish feeds obtained from 17 different feed companies in Khulna district, Bangladesh. The collected feed samples were analyzed at the Interdisciplinary Institute for Food Security (IIFS) Laboratory using Graphite Furnace Atomic Absorption Spectrometry (GFAAS) to determine the concentrations of the targeted heavy metals. The results showed that zinc concentrations varied among the feeds, ranging from 52.73 ppm in Aman Feed Grower to 95.20 ppm in Mega Grower Feed. All values were below the maximum permissible limit of 100 ppm set by the WHO and FAO. In contrast, chromium concentrations were of greater concern. The highest level was found in Agroho Grower Feed (6.33 ppm), while the lowest was in Lily Starter Feed (0.43 ppm). Chromium was not detected in Mega Grower Feed. Cadmium, lead, and arsenic were not detected in any of the samples, indicating a relatively low risk from these toxic metals in the feeds tested. Zinc levels in the tested feeds are within safe limits; however, chromium concentrations substantially exceed international safety standards, highlighting the need for continuous monitoring to ensure fish and public health safety. © 2025, Egyptian Society for the Development of Fisheries and Human Health. All rights reserved.
Department of Aquaculture, Bangladesh Agricultural University, Mymensingh, Bangladesh; Chemistry Department, Faculty of Mathematics and Natural Science, Universitas Nigeri Malang (UM), State University of Malang, Jln Semarang No. 5, Malang, Indonesia; Sydney, Australia; Department of Aquaculture, Khulna Agricultural University, Khulna, Bangladesh; Bangladesh Institute of Research and Training on Applied Nutrition (BIRTAN), Araihazar, Narayanganj, Bangladesh; Department of Fisheries, Ministry of Fisheries and Livestock, Bangladesh; Department of Aquaculture, Chattogram Veterinary and Animal Sciences University, Chattogram, Bangladesh; Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh, Bangladesh; Faculty of Fisheries and Ocean Sciences, Khulna Agricultural University, Khulna, Bangladesh
