Straw in manure breaks down antibiotics
The addition of straw to manure helps to break down antibiotic residues that
are excreted by the animals and are still present in the faeces. This is the
conclusion of a study done by ARS, part of the US Department of Agriculture
For the study, a scientist from the Technical University in Istanbul, Turkey
and US scientists teamed up to look at the levels of oxytetracycline and
chlorotetracycline in faeces samples of chickens.
It was shown that the
antibiotic concentrations are reduces when the manure is mixed with straw. This
is because the addition of straw brings more air to the manure, which speeds up
the composting process.
Additional research showed that antibiotics and
hormones are present in different places near intensive farms.
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