showed that experimental variation in feeding steam roasted soya
beans to pigs was introduced by variables such as processing temperature, length of
processing time, the size and variety of the soya bean, and animal pen unit response to the
diet. In the current study we report animal pen unit response of piglets resulting from the
variation in nutritional value of soya bean protein supplements prepared from dry roasting
whole full-fat soya beans processed at 800 or 900 g kgÿ1 DM and 110 or 1258C. The
objective of this study was to compare the pen unit response of piglets fed soya bean
protein supplements prepared by the dry roasting of whole full-fat soya beans at 800 or
900 g kgÿ1 DM prior to dry roasting at 110 or 1258C, using commercially available onfarm
equipment.