Recently, a new variety of high-oil soybean patented as PHOTOSEED has been developed, but there are no data for the nutritional value of the de-oiled co-product from this variety. The hypothesis of this experiment was that the digestibility of energy and nutrients in soybean expellers produced from the new variety of high-oil soybeans (SBE-HO) is not different from that of soybean expellers produced from conventional soybeans (SBE-CV). Results indicated that SBE-HO had reduced digestibility of some amino acids compared with SBE-CV, but because of the greater concentration of amino acids in SBE-HO, the concentration of digestible amino acids was greater. Concentrations of digestible energy tended to be greater in SBE-HO than in SBE-CV, but the digestibility of phosphorus was not different between the 2 sources of soybean expellers and P digestibility was increased by phytase regardless of the origin of the expellers. It is concluded that if SBE-HO is included in diets for pigs instead of SBE-CV, the inclusion can be reduced due to the greater concentration of digestible amino acids, but energy concentration and P digestibility will not be changed.

Read the full article in the Journal of Animal Science.