The average food ration for a dairy cow consists of 80% fresh grass and fodder, and 20% supplementary feeding-stuffs (cereals, rapeseed, soy, sunflower…) to provide energy and proteins. More than 90% of the feed is grown locally, directly on the farms.
The study showed that although imported soy meal and PKE (Palm Kernel Expeller, a by-product of palm oil extraction) accounted for less than 5% of the composition of the cow feed, both ingredients have strong negative impacts on the environment, contributing to deforestation in particular.