This is a good trial and research results. But it is important to consider that several mycotoxins are present in feed. The approach needs multiple factors.
My understanding is that SBS needs higher temperatures to be able to detoxify DON. Description does not seem to indicate any thermal processing, which makes me question how SBS might be having any effect here at all.
The impact of SMB on detoxifiation of DON is greater when heat treatment is applied; however, we have several experiments that show the benefit of SMB in diets with DON in mash diets. Some sulfination of the DON still occurs, just not to quite as great of extent.