The experimental design was completely randomized with five treatment diets, each of which was replicated four times.The five treatment diets were as follows: basal diet (control, C), 2.5 g kg−1inulin-supplemented diet (2.5 inulin), 5.0 g kg−1inulin-supplemented diet (5.0 inulin), 5.0 g kg−1JA-supplemented diet (5.0 JA), and 10.0 g kg−1JA-supplemented diet (10.0JA). The 2.5 inulin and 5.0 inulin diets were prepared to incorporate inulin (PREBIOFEED 88; Warcoing, Belgium) to ensuresupplementation levels of 2.5 g kg−1and 5.0 g kg−1, respectively. The 5.0 JA and 10.0 JA diets were prepared to incorporateJA at 5.0 g kg−1and 10.0 g kg−1, respectively, which were equal to inulin levels of 2.5 g kg−1and 5.0 g kg−1, respectively.