Judul: Reproductive performance of nile tilapia (Oreochromis niloticus) supplemented with fish oil and vitamin E in diets and reared at different salinity
Abstrak: This research was conducted to study the effect of combination of fish oil and vitamin E supplemented in diet on the quality of eggs and larvae of Nile tilapia, reared at different salinity. The research was carried out in two phases. The first phase was to study the effect of combination between fish oil at the dose of 10, 20, 30, and 40 g/kg of diet and vitamin E at dose of 50, 100, 150, and 200 mg/kg of diet; while the second phase was to study the effect of the best combination diet resulted of the first phase on eggs and larval quality at different salinity level; namely 0, 10, 20, 30 ‰.
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Judul: Kajian kombinasi penambahan spirulina platensis pada pakan dan penyuntikan oodev terhadap kinerja reproduksi ikan nila.
Abstrak: Hatchery is one of important parts in aquaculture. This activity hopefully will go on continuously whole year in order to fulfill the seed required with good quantity and quality. Naturally, fish spawning time depends on environment signal. If environment have given the signal, the phisiological body system will work very well. The environment signal can be manipulated by hormone injection such as PMSG. Spawning fluency also depends on body nutrition status, because the material proceed from consumed feed. Therefore, fed by optimum nutrient is needed to improve gonad development. The raw material is determinant of consisted nutrient in. Feed can be added with any material which have ability to sustain reproduction activity, such as Spirulina. This study was held to evaluate and analyze combination between S. Platensis added in feed and Oodev (containing PMSG+antidopamin) injection on tilapia reproduction performance. Tilapia as object of this study represented unsyncronize fish. S. platensis consist of many importance nutrients for reproduction, such as high essential fatty acid and high protein. Oodev consist of PMSG containing Folicle Stimulating Hormone (FSH) that has important role in early maturation or vitellogenesis. The doses of S. Platensis added were 0%, 1%, 2%, and 3%. The doses of Oodev injected were 0 IU/kg and 10 IU/kg. Thereby, total treatments were eight combinations. The parameters that observed were egg diameter, fecundity, hatching rate, survival rate, spawning frequency, spawning time, egg quality, and larvae quality. In conclusion, the addition of S. platensis in feed and Oodev injection concurrently able to increase tilapia reproduction performance and total spawned fish. Based on this study, the best treatment was combination of S. platensis addition 2% and Oodev 10 IU/kg which showed average egg diameter 2.93 mm,average fecundity 1114 eggs/200 g body weight, average hatching rate 99.6%, and average larvae survival rate 93.5%. Egg and larvae protein respectively 62.49% and 65.5%.
Keyword: S.platensis, Oodev, tilapia, reproduction

Judul: Pengembangan model markov tersembunyi pada identifikasi pembicara
Abstrak: Model Markov Tersembunyi merupakan suatu model yang tersusun dari dua buah proses stokastik, yaitu rantai Markov untuk menampung kemajuan temporal dan proses yang teramati untuk menampung variasi akustik. Model ini dapat digunakan sebagai metode pencocokan pola pada sistem identifikasi pembicaraan. Setiap model mewakili referensi pola dari seorang pembicara di dalam sistem identifikasi pembicara.
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