FM significantly increased IDF (by 26.1–28.0%) and TDF (by 17.4–18.7%) but not SDF. This result was similar to that reported by Vasanthan et al. (2002). Changing SS had a small but significant effect on IDF (decreased by 5.8–8.7%) and SDF (increased by 6.4– 10.6%), but not on TDF content.