Detection of Chromium (Cr) using X-ray Fluorescence Technique and Investigation of Cr Propagation from Poultry Feeds to Egg and Chicken Flesh

摘要

This paper presents possibility of detecting the presence o f Chromium (Cr) in poultry in Rajshahi area using X-ray fluorescence (XRF) technique. It also investigates the propagation of Cr from poultry feeds to chicken flesh. Poultry feeds were collected from different vendors at Rajshahi. It was found that some of the locally produced poultry feeds contained a considerable amount of Cr that propagates to the chicken meat and egg. This Cr might be hazardous for human health. Among the four most widely used feeds in Rajshahi region maximum Cr concentration of 17.3 ppm was detected in "Adorsho feed (Pabna)". Transmission of Cr from feed to egg and various parts of chicken were investigated with chicken samples of different ages grown by feeding "Adorsho feed". An average of 4.3 ppm of Cr was found in Yolk and 2.7 ppm w as found in the egg-white. Highest concentration of Cr was found to be 5.9 ppm in the brain of 29 -days old chicken. The concentration of Cr was different in various parts of chicken depending on its age. The experimental results indicate that the XRF technique can be used efficiently to detect the presence and transmission of heavy metals like Cr from feed to egg and poultry.