Abstract
This research was conducted from January - March 2020. The aimed of this research was to evaluate the effect of using fermented A. microphylla flour in the diet on feed digestibility, feed efficiency and growth of red tilapia, and the best percentage of A. microphylla flour fermentation in the diet to increase feed efficiency and growth of red tilapia. This study used a one-factor completely randomized design (CRD) with 5 treatments and 3 replications. The treatments in this study were P0 (0% FTA), P1 (25% FTA), P2 (50% FTA), P3 (75% FTA), P4 (100% FTA) in feed. Diet as much as 10% of the weight of the biomass is given three times a day, namely at 07.00, 12.00 and 17.00 WIB. The red tilapia used were 5.50 ± 0.71 cm in size with an average weight of 1.27 ± 0.08g and a stocking density of 25 fish /m3. The results showed that giving azola leaf flour fermented could increase the growth and survival of red tilapia. The use of 25% fermented A. microphylla leaf meal (P1) gave the best results for the feed digestibility value of 75.96%, 76.59% protein digestibility, 62.07% feed efficiency, 85.36% protein retention, specific growth rate 4, 31% and the cost of the test feed is Rp. 8,310.
Highlights
The aimed of this research was to evaluate the effect of using fermented A. microphylla flour in the diet on feed digestibility, feed efficiency and growth of red tilapia, and the best percentage of A. microphylla flour fermentation in the diet to increase feed efficiency and growth of red tilapia
The results showed that giving azola leaf flour fermented could increase the growth and survival of red tilapia
Tepung Kiambang (Salvina molesta) Terfermentasi sebagai Bahan Pakan Ikan Nila (Oreochromis niloticus)
Summary
Keterangan: B = Jumlah Bahan (%), T.K= Tepung Kedelai, F.T.A= Fermentasi Tepung A. Bahan-bahan pakan yang digunakan sebagai bahan pakan ditimbang sesuai kebutuhan. Pencampuran bahan dilakukan secara bertahap, mulai dari jumlah yang paling sedikit hingga yang paling banyak sehingga campuran menjadi homogen. Analisis proksimat pakan uji disajikan pada Tabel 2. Pemberian pakan uji pada ikan nila merah (O. niloticus) dilakukan 3 kali sehari yaitu pada pukul 08.00, 12.00 dan 17.00 WIB dengan dosis 10% dari bobot biomassa ikan uji. Parameter uji yang diukur adalah kecernaan pakan, kecernaan protein, efisiensi pakan, retensi pakan, laju pertumbuhan spesifik, dan kelulushidupan ikan. Untuk pembuatan pakan uji yang digunakan untuk analisis kecernaan dilakukan dengan menambahkan Cr2O3 didalam pakan uji yang sudah jadi sebanyak 0,5% dari jumlah pakan uji yang dibuat
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