Tholibah Mujtahidah, Maheno Sri Widodo, Abdul Rahem Faqih
Nile Tilapia (O. niloticus) is one commodity of freshwater which has high economical prospects as well as demand for this commodities to increase. Engineering reproductive technology has been applied. This research regarding the provision of gonadal supernatant biostimulan yellowfin tuna (T. albacares) for the reproduction of nile tilapia. The aim was assessed hormone 17β-estradiol level as its reproductive response. The method used was experimental and descriptive. The results showed that the value of 17β-estradiol in 24 h time series average decreased by the difference value in 52,8pg/ml to 4.139,3pg/ml. Time series in 72 h showed an increased value 117,21pg/ml to more than 4.300pg/ml although no impairment at the highest dose of 236pg/ml to 2.810pg/ml. Time series in 144 h showed the average value of 17β-estradiol that was too high at more than 4.300pg/ml. © 2016, Sphinx Knowledge House. All rights reserved.
Faculty of Fisheries and Marine Sciences, Universitas Brawijaya, Jl. Veteran, Malang, 65145, Jawa Timur Province, Indonesia
