伊犁地区肉牛产业链中土壤、饲料及牛肉中重金属残留分析

Heavy Metals Residues in Soil,Feed and Beef of the Cattle Industry in Yili area of Xinjiang

为了解新疆伊犁地区肉牛产业链中重金素元素的残留情况,本研究采用原子吸收法对新疆伊犁地区肉牛养殖场的土壤、饲料及屠宰场的牛肉进行重金属砷、铅、汞、铬、镉的检测。结果表明土壤样品中重金属铅、砷、汞、铬、镉元素含量分别为0.03～0.20、3.87～8.30、0.15～0.23、0.09～0.48和0.41～0.86mg/kg。饲料样品中铅、砷、汞、铬、镉元素含量分别为3.01～18.09、75.35～94.27、19.65～24.37、0.06～1.04和1.81～8.46μg/kg。牛肉中铅、砷、汞、铬、镉元素含量分别为0.23～0.54、1.22～7.12、0.28～0.53、0.01～0.27及0.02～0.03μg/kg。土壤和饲料、饲料和牛肉、土壤和牛肉中重金素含量的相关系数分别是0.96、0.99、0.98。综上所述,伊犁地区肉牛养殖场的土壤和饲料,屠宰场的牛肉中重金素铅、砷、汞、铬、镉元素的含量均没有超标,三者中重金属含量具有较高的相关性。

In order to understand the situation of heavy metal residues of the beef industry chain in Yili area of Xinjiang.The heavy metals（Pb,As,Hg,Cr and Cd）in soil,feed and beef of the cattle farm were determined using the atomic absorption spectrometry.The results showed that the heavy metal（Pb,As,Hg,Cr and Cd）contents in soil samples were 0.03-0.20,3.87-8.30,0.15-0.23,0.09-0.48 and 0.41-0.86 mg/kg,respectively.The heavy metal（Pb,As,Hg,Cr and Cd）contents in feed samples were 3.01-18.09,75.35-94.27,19.65-24.37,0.06-1.04 and 1.81-8.46μg/kg,respectively.The heavy metal（Pb,As,Hg,Cr and Cd）contents in beef samples were0.23-0.54,1.22-7.12,0.28-0.53,0.01-0.27 and 0.02-0.03μg/kg,respectively.The correlation coefficient of the heavy metal element between soil and feed,feed and beef,soil and beef were0.96,0.99 and 0.98,respectively.It was concluded that the heavy metal（Pb,As,Hg,Cr and Cd）contents in soil,feed and beef of the cattle farms in Yili area did not exceed the standard and that in the soil,feed and beef had the high correlations.