Hormone Discharges from a Midwest Tile-Drained AgroecosystemReceiving Animal Wastes(Gall et al.
The type and amount of hormones
in these wastes vary by animal, reproductive stage, and treatment with growth-promoting compounds.
However, Kjær et al.10
observed hormone concentrations in tile drainage up to 11 monthsafter subsurface injection of liquid swine manure during a 1 yearReceived: April 5, 2011Accepted: August 30, 2011Revised: August 29, 2011ABSTRACT: Manure is increasingly being viewed as a threat to aquatic ecosystems dueto the introduction of natural and synthetic hormones from land application toagricultural fields.
Hormones were detected in a...
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