Department of Animal Science, College of Abouraihan, University of Tehran, P.O. Box 11365-4117, Tehran, Iran.
Bull Environ Contam Toxicol. 2014 Jun;92(6):693-7. doi: 10.1007/s00128-014-1270-1. Epub 2014 Apr 8.
The present study examines blood metals levels and health parameters in dairy cows reared in areas around a Pb-Zn industrial complex located near the city of Zanjan-Iran. Blood samples (n = 27) were collected from cows reared around the smelter. Blood samples (n = 25) were also collected from cows reared in areas where chances of Pb contamination of soil, water and fodder do not exist, to serve as reference. The mean blood Pb level in cows around the smelter (1.09 ± 0.26 µg/mL) was higher than the cows from the reference area (0.72 ± 0.25 µg/mL). Hematocrit (PCV) levels decreased in cows reared in the near of smelter (24.37 % ± 2.22 %) compared to the reference site (27.54 % ± 2.87 %). Hemoglobin (Hb) concentration and mean corpuscular Hb concentration value in cows from the area around the smelter were statistically lower than the cows reared in reference area. Activities of alanine transaminase and aspartate aminotransferase (IU/l) were significantly higher in cows around the smelter as compared to reference animals.
本研究调查了伊朗赞詹市附近铅锌工业综合体周围地区饲养的奶牛的血液金属水平和健康参数。从冶炼厂周围饲养的奶牛中采集了血液样本（n = 27）。还从不存在土壤、水和饲料中 Pb 污染可能性的地区饲养的奶牛中采集了血液样本（n = 25）作为参考。冶炼厂周围奶牛的平均血液 Pb 水平（1.09 ± 0.26 µg/mL）高于参考区奶牛（0.72 ± 0.25 µg/mL）。与参考地点（27.54%±2.87%）相比，在冶炼厂附近饲养的奶牛的血细胞比容（PCV）水平降低（24.37%±2.22%）。来自冶炼厂附近地区的奶牛的血红蛋白（Hb）浓度和平均红细胞 Hb 浓度值明显低于在参考区饲养的奶牛。与参考动物相比，冶炼厂周围奶牛的丙氨酸转氨酶和天冬氨酸转氨酶（IU/l）活性显着升高。
