Interpretive Summary: Nutritional value of a new source of fermented soybean meal fed to growing pigs
By Anne Zinn
A study published in the Journal of Animal Science investigated a new source of fermented soybean meal (SBM), Fermex 200. SBM is an important protein source in swine diets because of its availability and its high concentration and digestibility of amino acids.
One downside of using SBM in young pigs’ diets is the presence of anti-nutritional factors, which can negatively impact nutrient availability, feed efficiency, and overall health. Additionally, SBM contains nondigestible oligosaccharides, which can increase diarrhea and reduce nursery growth performance. The concentration of oligosaccharides in SBM can be reduced through various treatments, but these technologies can result in increased concentrations of gross energy, crude protein, amino acids, and ash. Research has demonstrated that processed SBM with reduced concentrations of oligosaccharides are better tolerated by weaning pigs than conventional SBM.
Fermex 200, a new source of fermented SBM, could serve as an alternative to other protein sources in pig diets, but there isn't currently any data demonstrating the nutritional value. The present study used three experiments to test the hypothesis that values for standardized ileal digestibility of amino acids, concentrations of digestible energy and metabolizable energy, and the standardized total tract digestibility of Phosphorus in Fermex 200 are greater than in conventional SBM.
Results demonstrated that the standardized ileal digestibility of amino acids and the concentrations of digestible and metabolizable energies in Fermex 200 were not any different from the values determined for conventional SBM, but that the standardized total tract digestibility of P was greater in Fermex 200 than in conventional SBM if microbial phytase was not added. Overall, the results indicate that Fermex 200 can likely be successfully used as a course of amino acids, energy, and Phosphorus in diets for weaning pigs.
The full paper, with extended results, can be found on the Journal of Animal Science website.