Growth, resistance to vibriosis and tolerance to a stressor of the selected giant freshwater prawn, Macrobrachium rosenbergii Ikhsan Khasani1, Asep Sopian1, Wahyu Pamungkas1
Research Institute for Fish Breeding
Abstract
The faster growth and higher survival of the giant freshwater prawn (GFP) is an urgent requirement to support the GFP farming. Breeding of the GIMacro (strain of GFP) resulted a fourth generation which growth faster than the based population. The comparative test of the selected GI Macro (SGM), the control of GI Macro (CGM), and the Siratu (SR) were conducted to evaluate the performance of these strains in the larval rearing phage, resistance to vibriosis of the larvae, and tolerance to a stressor (pH, temperature, salinity, and formaldehyde) of the juvenile. The growth (Larvae stage index) of the three populations is not different, there were 10.25, 10.31, and 10.12 for SGM, CGM, and SR, respectively. The survival rate of the SGM larvae is about 59.92%, significantly higher than the CGM (52.67%) and SR (45.85%). The resistance level of SGM larvae to Vibrio infection (72.75%) is not different from the CGM (70.25%) and SR (67.88%). The tolerance level of the SGM, CGM, and SR juvenile to these stressors was relatively high, but there were no different. The data suggested that the selected GI Macro II has a good prospect to be developed in the GFP farming system.
