PEMELIHARAAN INDUK BETINA IKAN ASANG (Osteochilus vittatus, Cyprinidae) PADA WADAH YANG BERBEDA TERHADAP DAYA REPRODUKSI

Abstract

The research is done to analyze maintenance female parent fish Osteochilus vittatus in different habitats respect to time achievement ripe the gonads , ovi somatic index , fecundity , the diameter of eggs and degrees hatching the egg. Methods used is experimental methods and analysis using t namely the comparison between 2 variables. Variable a namely maintenance parent fish Osteochilus vittatus in in a concrete tank with density 13 tail / m3. equivalent to 65 tail / 4.8 m3 , while variable b namely maintenance parent fish Osteochilus vittatus in keramba a net buoyant in lake maninjau with density 13 tail /  equivalent to 65 tail / 4.8 m3. The results of the study showed that time achievement ripe gonad that the fastest happened to maintenance female parent fish Osteochilus vittatus in keramba a net buoyant ( 122±32 days and the longest travel time in a concrete tank ( 144 ± 31 days ) .Index ovi somatic female parent fish Osteochilus vittatus preserved in in a concrete tank is the ( 16,43 ± 5.54 % ) while in keramba a net buoyant ( 13,65 ± 6.33 % ) . Fecundity fish Osteochilus vittatus preserved in in keramba a net buoyant ( 51.167±10.551 grains and in tub concrete tank ( 25.892 ± 9.869 grains ) .The diameter of eggs largest found in maintenance female parent fish asang in the concrete tank ( 0,97 ± 0.05 mm ) and smallest in maintenance female parent fish Osteochilus vittatus in keramba a net buoyant ( 0,90 ± 0.00 mm ) . Degrees hatching the egg is highest in maintenance female parent fish Osteochilus vittatus in the concrete tank ( 18,57 ± 13,74 % ) and the lowest is in maintenance female parent fish Osteochilus vittatus in keramba a net buoyant ( 15,20 ± 13,01 % ).