Daftar Isi:
  • This study aimed to investigate the effects of probiotic (Bacillus NP5), prebiotic (extracted from Ipomoea batatas var. sukuh,), and synbiotic on growth and digestive enzyme activity of dumbo catfish (Clarias sp.). Four treatments with 3 replications were used in the experiment, i.e; control, probiotic (1% Bacillus NP5 in feed), prebiotic (2% sweet potato extract in feed), and synbiotic (1% probiotic and 2% prebiotic in feed). After 45 days of rearing, catfish that were given probiotic, prebiotic, and synbiotic showed significantly (P<0.05) higher growth than that of the control. The average results on digestive enzyme activities in probiotic, prebiotic, and synbiotic treatments were significantly different (P<0.05) from that of the control. The addition of synbiotic to diets showed the best result on final weight, specific growth rate, feed conversion ratio, protein retention, protein efficiency ratio, and protease activities among other treatments.