A farmer in canton Vaud says nearly 300 cows have died since 2021 under mysterious circumstances on his farm near Moudon.
The problems began months after solar panels were installed on a new barn, with animals showing serious health issues during calving.
Despite extensive testing, no clear cause has been confirmed, but experts are examining the possibility of stray electrical currents affecting the cattle.
The farmer estimates losses of more than CHF 3m and has now moved his remaining herd back to an older barn as a precaution.
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