No difference in the distribution of particle size in thefaeces was observed between the mixed and medium diets(Table 5).The coarse diet had the largest (p<0.05)proportion of particles over 2,000 μm and the fine diet thelargest (p<0.05) proportion of particles between 106 and1,000 μm.The change in particle size distribution betweenthe diet and the faeces was calculated for each animal, and aprincipal component analysis was conducted with thosevalues. The results of this analysis show that the change inparticle size distribution allows a clear distinction betweenanimals fed different diets (Figure 2).
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