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通过调查取样测定的方法研究了北京地区规模化养殖场不同饲养阶段猪粪中常见微量元素的含量水平。结果表明:各饲养阶段猪的粪便中微量元素含量差异显著;从平均含量水平来看,猪粪中铜锌呈现相同的规律,即仔猪粪>育肥猪粪>种猪粪,猪粪中镉含量的规律为种猪粪>仔猪粪>育肥猪粪,猪粪中砷含量的规律为育肥猪粪>仔猪粪>种猪粪;猪粪中的铜锌砷超标率均为100.00%,铜的最高含量可达1170.00mg/kg,锌的最高含量可达1860.00mg/kg,砷的最高含量可达104.00mg/kg;猪粪中的镉含量均不超标;为了有效减少粪便中的微量元素含量,必须严格控制饲料中微量元素的添加量。
The contents of common trace elements in pig manure in different breeding stages of large-scale farms in Beijing were studied by means of sampling survey. The results showed that the contents of trace elements in pig manure were significantly different at different feeding stages. From the average content level, the contents of copper and zinc in pig manure showed the same pattern, that is, pig manure> fattening pig manure> pig manure and pig manure The law is pig manure> pig manure> fattening pig manure, the rule of arsenic content in pig manure is fattening pig manure> pig manure> pig manure; copper and zinc arsenic in pig manure exceed 100%, the maximum content of copper is up 1170.00mg / kg, the highest content of zinc up to 1860.00mg / kg, the highest content of arsenic up to 104.00mg / kg; pig manure in cadmium content are not exceeded; in order to effectively reduce the trace elements in the feces, we must strictly control Feed the amount of trace elements added.