There is no recognized breed of pig known as a "Dalland pig." You may mean a different breed, or there may be a typo in the name.
Possibilities include:
Danish Landrace pig: Known for lean meat and high reproductive rate.
Duroc pig: Known for red color, good meat quality, and mothering abilities.
Landrace pig: Originating in Denmark, known for high growth rate and lean meat.
If you clarify which breed you are interested in, I can provide more details about its characteristics.