Investigation of stocking densities of Fnerro Penaeus Indicus In Shrimp earthen ponds - Gwater
2005
Azhdahakosh Pour, Ashkan | Aminy Rad, Taymoor | Haghpanah, Abdollah | Aghily, kamran | Eahtshamy, Frayborz
In This research, effect of stocking densities of Indian white shrimp (Fennero penaeus indicus) on production investigated in Gowater earthen ponds with cooperation Shahid Bahonar CO. The seed (Stage PL15 were stocked in four different densities (18.5, 20.0, 21.5 & 23.0 .Pie/m2) treatments, each with three randomly in 12 earthen ponds. Chemical & Physical factors of ponds water including: Temperature, Salinity, Turbidity & Ph were measured daily. Every 10 days sampling were taken from each pond to biometric of shrimp for investigate of growths and determined an average individual weight. All pond was managed same. Result showed that data of Temperature, Salinity, and Turbidity& Ph were non significant differences between treatments. Result of This investigate showed significant differences between treatment in result of effect of density on Final biomass, average body Weight, Daily growth rate, survival & FCR. Statically analysis showed that a significant differences in final biomass between 18/5 pec/m2 with 23 pec/m2 treatment. So that with increasing density final biomass also increased. Also results showed that differences in growth were significant (P5%). in this manner that increasing stocking density, decrease the average individual weight How ever growth in treatment 18.5 & 20.0 pec/m2 were significantly different from treatment 23.o pec/m2 (P5%). Average daily grows was attained 0/13,0/13,0/124&0/114 g/day respectively in four different densities (18.5, 20.0, 21.5 & 23.0 .Pie/m2). Shrimp mean survival in all treatment is high (85%) an unaffected with different densities. In investigate of FCR, statically analysis showed no significant differences among treatments. A simple economic analysis indicated that final income from sale declined with increasing stocking density.Treatment 18.5 pec/ m2 with average attained final biomass 2497/6 Kg, FCR 1.39, average individual weight 15.1(gr) , survival 93% is best treatment in compared to other treatment.
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