摘要：Abstract Raw skin trimmings (RST), wet blue shaving dusts (WSD), and low-chrome wet-blue scraps (LCWS) are protein-rich tannery wastes which are used as one of the main ingredients for manufacturing of poultry feeds. These feeds may contain toxic chromium, which accumulates in the poultry and cause chrome contamination in human food chain. It is a major concern for humans consuming these poultry as part of their regular diet. In this study, tannery wastes, 12 brands of poultry feeds, broiler chickens (Gallus gallusdomesticus) nourished on chrome containing feed were collected for the investigation of total chromium present and circulated through the process of ingestion and digestion. The chromium content of RST and all poultry feed samples were found to be below 0.03 mg/kg, except the samples of WSD, LCWS, starter feed (FS10), and grower feed (FS11), which were 29854.4 ± 0.9, 14902.0 ± 1.01, 618.3 ± 0.9 and 3.02 ± 0.07 mg/kg, respectively. The chromium in protein concentrate made from WSD and LCWS were 21535.4 ± 1.01 and 13421.8 ± 0.04 mg/kg, respectively. Various body parts of chickens were found to be contained the element in the range of 0.42 to 0.84 mg/kg. Hence, there is a potential human health risk through consumption of contaminated poultry meat as it exceeded the daily adequate intakes (AIs) level.
