The River Wye area's largest poultry supplier says its supply chain will no longer sell litter from poultry units to be used as fertiliser on fields within the river catchment because of the impact it has on water quality.
Avara will no longer sell litter as fertiliser within the Wye's catchment.
Avara processes two million chickens at its factory in Hereford each week and is the county's largest employer.
The company said it wanted to "set an example to others".
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