OPTIMIZATION OF SURVIVAL AND GROWTH OF Tilapia (Oreochromis niloticus) IN INTEGRATED RICE-FIELD CULTURE WITH APPLICATION OF FENTINE ACETATE AS MOLUSCICIDE Lies Setijaningsih (a*) , Imam Taufik (a), Dewi Puspaningsih (a)
a) Research Institute for Freshwater Aquaculture and Fisheries Extention
*liessetijaningsih[at]yahoo.com
Abstract
Fentin acetate is used as a pesticide in rice fields to eradicate pests. Research with physiological factors approach is expected to increase the survival and growth of tilapia. The purpose of this study was to determine the impact of exposure of fentin acetate with different concentrations on the biological performance and hematological characteristics of tilapia (Oreochromis niloticus). The research land used 16 rice fields with an area of 30 m2 each (6 x 5 m). The research design used was a completely randomized design with four treatments and three replications, different concentration of fentin acetate, namely: A. 0.00- B. 0.375- C. 0.75- and D. 1.5 g/L for 21 days experiment. The results showed that fentin acetate in treatment C resulted in the best growth of tilapia. It was noted that absolute weight gain, daily growth rate and productivity were significantly different (P<0.05) with treatments A, B and D. The highest value in treatment C was 20.53 g for absolute weight gain, 5.43 for daily growth rate and 501.58 g for productivity. The survival rate in treatments B and C were not significantly different (P>0.05) as well as treatments A and D. The concentration of molluscicide fentin acetate at a dose of 0.75 g/L affected the decrease in the hematological characteristics of tilapia.
