http://www.independent.co.uk/news/world/americas/feedings-cows-oregano-can-reduce-methane-and-help-fight-climate-change-a7039921.html
Oregano skal få køer til at bøvse mindre metan http://dca.au.dk/aktuelt/nyheder/vis/artikel/oregano-skal-faa-koeer-til-at-boevse-mindre-metan/
