农业环境科学学报2009，Vol.28Issue(10)：2173-2179,7.
北京集约化养殖畜禽饲料Zn含量及粪便Zn残留特征研究
Residual Character of Zn in Feeds and Their Feces from Intensive Livestock and Poultry Farms in Beijing
摘要
Abstract
208 pig, dairy cow, chicken feeds and 204 fecal samples from intensive livestock and poultry farms were collected in 6 districts and counties of Beijing. The concentrations of Zn were analyzed. The results showed that Zn contents varied greatly among feeds and feces in this study, The concentrations of Zn were in the range of 72.77～3 170.37 mg·kg~(-1), 13.63～471.39 mg·kg~(-1) and 32.64～344.67 mg·kg~(-1) respectively in pig, dairy cow and chicken feeds, and the mean values were 347.57 mg·kg~(-1), 86.44 mg·kg~(-1), 138.76 mg·kg~(-1), respectively. The concentra-tions of Zn ranged from 458.21 to 14 031.79 mg·kg~(-1), 10.36 to 502.39 mg·kg~(-1), 73.15 to 678.91 mg·kg~(-1) respectively in pig, dairy cow and chicken feces, and the mean values were 2 333.97 mg·kg~(-1), 119.41 mg·kg~(-1) and 391.01 mg·kg~(-1), respectively. It is clearly that the concentra-tions of Zn in pig feeds and feces were much higher than that in dairy cow and chicken feces. The over standard rate of Zn concentrations in pig feeds and feces were 9.3%, 15.0%, respectively, no samples of dairy cow and chicken contained Zn beyond the ceiling limitation. The contents of Zn in livestock and poultry feces showed a significantly positive correlation with that in their feeds at the 0.05 level. Zn concentrations in pig, dairy cow and chicken feces were 6.7、1.4、2.8 times greater than in their feeds, displayed an obvious "concentrated effect". The mean contents of Zn in weaner feeds and feces were 645.37 mg·kg~(-1) and 5 133.64 mg·kg~(-1), respectively, were the highest in the study, with "concentrated co-efficient" of 6.61. Hence, the utilization of animal feces with high Zn content might cause the potential risk on farmland and the plants.关键词
畜禽/饲料/粪便/锌含量/集约化养殖Key words
livestock and poultry/ feeds/ feces/ Zn content/ intensive animal production分类
资源环境引用本文复制引用
索超,李艳霞,张增强,韩伟,熊雄,李帷,林春野..北京集约化养殖畜禽饲料Zn含量及粪便Zn残留特征研究[J].农业环境科学学报,2009,28(10):2173-2179,7.基金项目
国家重点基础研究发展计划项目(2004CB418507) （2004CB418507）
国家"十一五"科技支撑计划(2006BADIOB05) （2006BADIOB05）
国家自然科学基金项目(20377040) （20377040）
