Application of Fermented Rice Bran Using Lactobacillus sp. in Artificial Feed For Survival Rate and FCR of Tilapia (Oreochromis niloticus)

Abstract

Rice bran is the result of the process of milling rice plants into rice, but rice bran has not been utilized properly in the Sidrap area. Feeding with the addition of fermented rice bran using Lactobacillus sp. is expected to increase the use of feed in tilapia aquaculture. This research aims to realize the fermentation of rice bran on the survival parameters and feed conversion ratio (fcr) of tilapia. This research used a completely randomized design with three replications and four treatments, namely (A) 10% dose of rice bran in feed, (B) 15% dose of rice bran in feed, (C) 20% dose of rice bran in feed, and (D) control. feed. The size of the tilapia used is 1.5 g / fish with a density of 20 individuals / 85 L of freshwater. The number of feeding four times a day and given a test feed of 5% of the bodyweight of the fish. The results showed that the bran flour was fermented using Lactobacillus sp. Significantly different in the survival rate and the ratio of tilapia feed conversion and water quality during the study is suitable for use in tilapia fish maintenance. The highest value resulting from the addition of fermented rice bran 15% (18.33) and 20% (19.33) for survival, while the lowest for control (16.67) and feed conversion ratio showed the best results with the provision of fermented rice bran 20 % (3.03).

PENGARUH DOSIS OBAT METHYLENE BLUE TERHADAP KELANGSUNGAN HIDUP IKAN NILA (Oreochromis niloticus) YANG TERSERANG PENYAKIT WHITE SPOT

“…Parameter pH yang dilakukan selama penelitian berkisar antara 8,1 hingga 8,3 ppm; nilai ini menunjukkan bahwa pH masih dalam kisaran yang dibutuhkan ikan dan masih dianggap sebagai pH normal rata-rata untuk ikan nila. Hal ini sesuai dengan hasil yang dicapai (Surianti et al, 2021) Nilai pH yang tinggi dan rendah, yaitu 6,95 hingga 6,69 membuat ikan lebih rentan terhadap penyakit, stres, dan masalah pertumbuhan. (Indriati & Hafiludin, 2022) menyatakan pertumbuhan dan perkembangbiakkan ikan nila yang optimal membutuhkan kisaran pH 7-8 ppm.…”

Exploration of the potential of vitamin premix with different doses to increase growth and survival of saline tilapia (Oreochromis niloticus) on laboratory scale environment

“…Menurut (Surianti et al, 2021) kelangsungan hidup ikan dipengaruhi oleh dua faktor yaitu faktor luar dan faktor dalam. Faktor luar sendiri terdiri abiotik, kompetisi antar spesies, penambahan populasi ikan dalam ruang gerak yang sama, meningkatkan predator dan farasit, kekurangan makanan dan sifat-sifat biologis lainnya.…”