Abstrak: This research is to know the dosage of rosella against immunity of giant gouramy fry had been challenged with Aeromonas hydrophila bacteria. The treatments are 0 g of rosella/kg of food (control), 10 g of rosella/kg of food, 20 g of rosella/kg of food, and 30 g of rosella/kg of food. The challenged test is done after the fishes had been given the food for 30 days. Each giant gouramy fry is injected by 106 cell of bacteria via intramuscular. Total leucocyte, hematocrite, phagocytic index, and mortality of giant gouramy fry had been evaluated. The result of research showed that the best of total leucocyte and hematocrite get from the fish had been given the 20 g dosage of rosella/kg of food, but phagocytic index, immunity, and fish mortality get from the fish had been given the 30 g dosage of rosella/kg of food. Supplementation of rosella in the food could increased immunity of giant gouramy fry.
Penulis: Mulyana MSI, Annita Mustikhasari, Rosmawati
Kode Jurnal: jppertaniandd130478