Efek Manipulasi Hormon 17α-Metiltestosteron Pada Berbagai Variasi Temperatur Air Terhadap Rasio Kelamin Ikan Gapi (Poecilia reticulata Peters)
I. A. K. Kadriah
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This study was conducted to determine percentage of male progeny of guppy (Poecila reticulata Peters) broodstock immersed in water containing various dose of 17α-Methyltestosterone (MT) and different temperature. Immersion of broodstock was carried out at 10th day after spawning. Dosage of MT used was 0, 0.5 and 1 mg per liter of water, while the water temperature was 27, 30 and 33oC, for 24 hours immersion. The result of study showed that the combination of hormone treatment 1mg/L and temperature 27oC produced higher percentage of male progeny (92.7%). Increasing water temperature in combination with dose of hormone treatment can reduce percentage of male progeny.
- Aquaculture