PERTUMBUHAN DAN PEMATANGAN GONAD IKAN GIRU Amphiprion clarkii YANG DIBERI PAKAN MENGANDUNG HORMON OODEV

Abstract

Somatic growth and gonadal maturation play a crucial role in fish farming. To obtain high quality fries, broodstocks should be at the maturity stage of gonadal development and have precise body size. Widely used in fish farming, Oodev induces gonadal maturation as it contains pregnant mare serum gonadotropin and anti-dopamine that together actively affect gonadal maturation. Despite its popularity in fish farming, the effect of this hormone on the somatic growth and gonadal maturation of Amphiprion clarkii is not well understood. This research aims to determine the effect of Oodev mixed in fish feed on somatic growth and gonadal maturation of clownfish A. clarkii. The fish were treated for 30 days with three different levels of Oodev with a dose of 0 mL/kg, 0,5 mL/kg, and 1 mL/kg added in fish feed, designed in triplicate for each treatment. The results showed that treatment with 1 mL/kg Oodev had a more significant effect than control, increasing both length (0,9 cm in male and 0,7 in female) and weight (1,32 gram in male and 3,05 gram in female) of the treated fish. Similarly, the same dose had higher Gonadosomatic Index score than control with GSI of 0,47% (male) and 0,58% (female) higher than control respectively. In conclusion, the treatment with 1 mL/kg Oodev formulated ini fish feed showed the best effect on both somatic growth and GSI of A. clarkii.