ACCUMULATION OF CHROMIUM FROM FEED TO DIFFERENT EDIBLE ORGANS OF BROILER

Abstract

Ensuring food safety is a worldwide concern whereas heavy metal contamination into food chain is an emerging crisis throughout the world at this present age. This study was conducted to evaluate the status of chromium (Cr) concentration in broiler feeds and water with the risk assessment of chromium (Cr) in broiler meat, liver and brain. Five broiler rearing farms were selected for this study where feed used for rearing the broiler were different in the farms. A total fifteen broiler chickens was collected along with the water samples from those broiler farms. Atomic Absorption Spectrophotometer (AAS) was used to determine the chromium (Cr) concentration in the feed, water, broiler meat, liver and brain samples. The mean concentration of chromium in feed, meat, liver, brain and water sample were found 0.00-3.51 mg/kg, 0.00-4.702 mg/kg, 0.00-2.7 mg/kg, 0.00-3.55 mg/kg and 0.00 mg/kg respectively. The highest concentration of chromium in broiler feed, meat, liver and brain samples was 0.857 ± 0.076 mg/kg, 3.510 ± 0.095 mg/kg, 2.700 ± 1.084 mg/kg and 3.550 ± 1.281 mg/kg respectively. However, study findings revealed that two feed samples were contaminated with chromium, but water samples were not contaminated. Chromium was found only in meat, liver and brain sample of those farm where chromium containing feed were used for rearing the broiler. Brain samples had the highest accumulation than those of liver and meat samples. Chromium concentration in broiler brain and liver were found much higher than permissible levels determined by FAO and WHO. Meat samples almost safe to eat as it had the accumulation rate within the permissible limit. The correlation coefficient between feed, meat, liver, and brain was strongly positive. Therefore it is suggested that precarious steps should be taken to detect the chromium in poultry feed to evaluate the health risks and to protect the human from food that might cause severe harmful effect on the health.