ABSTRACT: An experiment was conducted to evaluate
the effects of a restriction to home-grown feedstuffs
and abstinence from supplementation with synthetic
amino acids (AA), as ideal objectives in organic pig production
according to the IFOAM standards, on growth
performance and carcass characteristics. One hundred
individually housed pigs were allocated to four dietary
treatments and fed from growing through finishing to
compare three organic barley/wheat-based diets with
an isocaloric conventional diet supplemented with synthetic
AA. Protein sources in the organic treatments
were either faba beans, supplemented with potato protein
to the same AA level as the control diet, peas and
lupines, or faba beans and lupines, both without further
supplementation, leading to a lower level of limited AA.
Supplementation of organic diets with potato protein