Nutrients and Trace Elements in a Pig Farm in Beijing： Chinese and German Recommendations

作     者：Roxana Mendoza Huaitalla Eva Gallmann Xuejun Liu Eberhard Hartung 

作者机构：Institute of Agricultural Engineering University of Hohenheim Stuttgart 70599 Germany College of Resources and Environmental Sciences China Agricultural University Beo＇ing 100094 China Institute of Agricultural Engineering Christian-Albrechts-University Kiel Kie124098 Germany 

出 版 物：《Journal of Agricultural Science and Technology(A)》 (农业科学与技术（A）)

年 卷 期：2012年第2卷第2期

页      面：191-208页

学科分类：090502[农学-动物营养与饲料科学] 02[经济学] 0201[经济学-理论经济学] 020105[经济学-世界经济] 0905[农学-畜牧学] 09[农学] 

主　　题：中国经济 微量元素 营养物质 养猪场 德国 北京 城市周边地区 中国国家标准 

摘      要：Emergence of Chinese economy together with the current Livestock Revolution in Asia have led to an increase of meat demands, specially pork that is reflected in the growth of commercial pig farms in peri-urban areas of Beijing, capital of Peoples Republic of China. In the framework of the International Research Training Group and of the Sino-Project Recycling of Organic Residues from Agricultural and Municipal Origin in China, the status quo of a large pig farm is researched. The first phase of the project was focused on a detailed description of the nutrients and trace elements contained in the main inputs (water, feed) and outputs (manure, wastewater) of the pig farm. The compliance with the Chinese national standards or often referred to as GB standards (in Chinese GuoBiao) and, current German recommendations were included. The analysis of nutrients and trace minerals followed the natural structure of the pig life cycle, i. e., gestation, farrowing, weaning and fattening. The main results showed that the pig drinking water met the recommendations for livestock drinking water, ground water and human drinking water. Concentrations of Zn, Cu, Mn and As in the pig feeds samples displayed higher values compared to the Chinese and German recommendations. Average values of trace elements in the pig manure did not surpass the Chinese and German recommendations of biowastes, however, some manure samples showed excessive concentrations of Cd, Cu and Zn. Likewise, Pb, Cd, Cr, Cu and Zn concentrations in the wastewater surpassed the recommendations for irrigation water.