Pengaruh Lama Perendaman Induk Di Dalam Aromatase Inhibitor Terhadap Proporsi Kelamin Anak Ikan Gapi Poecilia reticulata Peters

Abstract

Guppy is one of the freshwater ornamental fish commodities which is popular and much demanded by the public, especially males guppy. This has caused generating males guppy or monosex population is more profitable. In this research, aromatase inhibitor was used in sex reversal method to produce male offsprings by immersion (dipping) of the gravid females guppy. The females Guppy was dipped in 50 ppm of aromatase inhibitor solution in different period i.e. 0, 8, 16 and 24 hours. Results showed that the treatment of 24 hours dipping period indicated the highest percentage of males offspring was 78.63%. Aromatase inhibitors do not affect the level of sustainability. Increasing of dipping period in aromatase inhibitor could increase masculinization guppy’s offspring.