Heavy metal contents of livestock feeds and animal manures in England and Wales

@inproceedings{Nicholsona1999HeavyMC,
  title={Heavy metal contents of livestock feeds and animal manures in England and Wales},
  author={F. A. Nicholsona and B. J. Chambersa and J. R. Williamsb and R. J. Unwinc},
  year={1999}
}
  • F. A. Nicholsona, B. J. Chambersa, +1 author R. J. Unwinc
  • Published 1999
In this study, 183 livestock feeds and 85 animal manure samples were collected from commercial farms in England and Wales and analysed to determine their heavy metal (zinc, copper, nickel, lead, cadmium, arsenic, chromium and mercury) contents. Zinc and copper concentrations ranged from 150±2920 mg Zn/kg dm (dry matter) and 18±217 mg Cu/kg dm in pig feeds, depending on the age of the pigs. In poultry feeds, concentrations ranged from 28±4030 mg Zn/kg dm and 5±234 mg Cu/kg dm, with laying hen… CONTINUE READING
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