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Abstract

of Padjadjaran University from October to November 2022, aims to obtain the optimal combination dosage of ovaprim and HCG hormones on the reproductive performance of mutiara catfish.The study used a completely randomized design (CRD) with four treatments (pair A: 0.4 ml ovaprim + 0.6 ml HCG, B: 0.5 ml ovaprim + 0.5 ml HCG, C: 0.6 ml ovaprim + 0.4 ml HCG for transgenic fish pairs, and D: 0.4 ml ovaprim + 0.6 ml HCG for non-transgenic fish pairs) with three pairs of broodstock as replicates.The research results showed that the best dosage to induce spawning in transgenic G4 mutiara catfish was found in treatment B (0.5 ml ovaprim/kg female and male broodstock weight and 0.5 ml HCG/kg male broodstock weight).After spawning, the broodstock pairs in treatment B showed the best results with an average relative fecundity of 85,103 eggs/kg broodstock, fertilization rate (FR) reaching 88.150%, hatching rate (HR) reaching 90.056%, and survival rate (SR) reaching 88.034%.