The hay production was based on

As pointed of by Riva (2013), the effect of breed on emission will depend on the allocation method as the relation between milk and meat allocation also differs between the JER and HOL breeds, not least when the total herd (cows, heifers and bulls) is taken into account. In this paper the effect of allocation method on emission per kg ECM was low, with JER emissions at 81% of HOL emissions using the IDF method and 78% based on economic allocation.