Aeromonas hydrophila bacteria often attack internal organs such as the liver and intestines. This research was conducted in June – August 2021 at Laboratory of Fish Parasites Diseases, Faculty Fisheries Marine, Universitas Riau. Histology preparations were made Bukittinggi Veterinary Center. aimed to obtain best dose addition papaya leaf fermented solution which could reduce intestinal tissue d...

the effects of dietary nucleotide (nt) on growth performance and some haematological parameters of striped catfish (pangasianodon hypophthalmus) were investigated. different levels of the nt (0, 0.25, 0.5, 0.75, 1%) in the diet were used for 10 weeks starting on the fish weighted (1.52 ± 0.11 g). the results showed that nt supplementations did not improve final weight, weight gain, food conserv...