Determination of Some Heavy Metals in Free Range Gallus Gallusdomesticus in Mubi North Local Government Area of Adamawa State, Nigeria
- April 23, 2020
- Posted by: RSIS
- Categories: IJRSI, Zoology
International Journal of Research and Scientific Innovation (IJRSI) | Volume VII, Issue IV, April 2020 | ISSN 2321–2705
Buba, Z.M.*, Ahmed, U., Elihu, A., Johnson, J.
Department of Zoology, Adamawa State University Mubi, Nigeria
*Corresponding Author
Abstract: – Heavy metals are persistent in the environment and are subject to bioaccumulation in food chains. However, exposure does not result only from the presence of a harmful agent in the environment. The present study was undertaken to investigate the concentrations of heavy metals (Zn, Cr, Pb, and Cu) in some organs and tissue such as blood, bones muscle and liver of local chicken sold in Mubi. Heavy metals were determined by standard methods of atomic absorption spectroscopy (AAS). One way analysis of variance (ANOVA) was used to analyze the data followed by Duncan multiple range test (DMRT) for means separation. The concentration of the above heavy metals in the studies samples were found to be significant, they are generally above the tolerance limit set by WHO, CODEX and FAO. Therefore consumption of free range local breed of chickens in Mubi has the danger of ingestion of heavy metals.
Key words: Determination, Heavy Metals, Free range, Gallus gallusdomesticus, Mubi
I. INTRODUCTION
Heavy metals are natural components of earth’s crust which cannot be degraded or destroyed (Reis et al., 2010). Living organism especially mammals and humans, require varying amounts of heavy metals such as Iron (Fe), Cobalt (Co), Manganese (Mn), Molybdenum (Mo) and Zinc (Zn), but exceeding permissible levels can be dangerous to the organisms. Some heavy metals such as Cu, Sc, Zn are essential to maintain metabolism in human body and can also lead to poisoning at higher concentration (El-Sayed, 2008). Ingestion of metals such as Lead (Pb), Cadmium (Cd) , Mercury (Hg), Arsenic (As), Barium (Ba) and Chromium (Cr) may pose great risk to human health as they accumulate in living thing any time they are taken up and stored faster than they are broken down, that is metabolized or excreted (El-Sayed, 2008).
