Journal of Aquaculture Management and Technology (2014), 3 (4): 9-17

PENGARUH BAKTERI PROBIOTIK PADA PAKAN DENGAN DOSIS BERBEDA TERHADAPA�EFISIENSI PEMANFAATAN PAKAN, PERTUMBUHAN DAN KELULUSHIDUPAN LELE DUMBOA�(Clarias gariepinus)
The Effect of Probiotic Bacteria With Defferent Dosages On Feed Efficiency Utilization and Growth Rate of TheA�Dumbo Catfish (Clarias gariepinus)

Aziz Sinung Wardika, Suminto*, Agung Sudaryono

Program Studi Budidaya Perairan, Jurusan Perikanan,
Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro
Jl. Prof. Soedarto Tembalang-Semarang, Jawa Tengah a�� 50275, Telp/Fax. +6224 7474698

ABSTRAK

Probiotik merupakan mikroba hidup yang memiliki pengaruh menguntungkan bagi inang melalui modifikasi bentukA�keterikatan (asosiasi) dengan inang atau komunitas mikroba lingkungan hidupnya sehingga dapat memiliki pengaruhA�memperbaiki kecernaan makanan, melindungi dari serangan patogen dan memperbaiki kualitas lingkungan. Tujuan dari penelitianA�ini adalah untuk mengetahui pengaruh penambahan jumlah probiotik yang berbeda yang berasal dari usus lele terhadap efisiensiA�pemanfaatan pakan, pertumbuhan dan kelulushidupan lele dumbo (Clarias gariepinus). Hewan uji yang digunakan adalah leleA�dumbo sebanyak 240 ekor berukuran 6-7 cm dan bobot 2,35 A� 0,05 g. Bakteri probiotik yang digunakan sebagai bakteri ujiA�adalah Bacillus subtilis, Bacillus lincheniformis dan Psidomonas putida telah diisolasi dari usus lele. Metode penelitian iniA�menggunakan rancangan acak lengkap (RAL) dengan perlakuan A (tanpa probiotik), B (dosis probiotik 106 CFU/mL), C (dosisA�probiotik 107 CFU/mL), dan D (dosis probiotik 108 CFU/mL) dengan menyemprotkan probiotik pada pakan. Hasil pengamatanA�menunjukkan perlakuan D memiliki nilai EPP terbaik yaitu (70,83A�4,60 %), PER (2,23A�0,15), SGR (2,61A�0,06 %/hari), panjangA�mutlak (4,50A�0,72 cm) dan mempunyai SR (96,67A�0,24%). Penambahan probiotik pada pakan menunjukkan pengaruh yang nyataA�terhadap EPP (Efisiensi Pemanfaatan Pakan), PER (Protein Eficiency Ratio), SGR (Specific Growth Rate), Pertumbuhan panjangA�mutlak, dan tidak berpengaruh nyata terhadap serta SR (Survival Rate) lele dumbo. Hasil penelitian menunjukkan dosis probiotikA�terbaik yaitu perlakuan D (108 CFU/mL).

Kata kunci: Probiotik, lele dumbo, pakan, pertumbuhan, kelulushidupan

ABSTRACT

Probiotic is a microbial life, that give to the advantageous effect for a fish culture (host) it through modification which haveA�bounded (association) with host or microbial community of those habit so that have affected to improve feed utilization efficiency,A�resistance to pathogen and improve the environment quality. The purpose of this research was to know the effected of bacterialA�probiotic isolated from intestinal catfish (Clarias gariepinus) with the different dosage on the feed utilization efficiency, growthA�and survival rate of catfish (C. gariepinus). The fish samples used were 240 tails of total which have average length 6-7cm andA�average wight 2,35 A� 0,05 g. The bacterial samples used were Bacillus subtilis, Bacillus lincheniformis and Psidomonas putida.A�The experimental method was employed in this research with completely randomized design. The research was carried out 4A�(four) treatments with 3 (three) replicates respectively. Those treatments were A treatment (no added probiotic), B treatmentA�(with addition of 106 CFU/mL), C (with addition of 107 CFU/mL), and D (with addition of 108 CFU/mL) spraying the probiotic onA�the feed. The results showed that D treatment had the EPP of (70.83A�4.60%), PER of (2.23A�0.15), SGR of (2.61A�0.06 %/day),A�absolute length (4.50A�0.72 cm) and had SR (96.67A�0.24 %). The use of probiotic had significally affected on EPP (feed efficiencyA�utilization), PER (Protein Efficiency Ratio), SGR (Survival Growth Rate), absolute length for dumbo catfish, and Indicated thatA�they were not significantly different on C. gariepinus SR (survival rate). Therefore the dosage of D treatment appears to be theA�best dosage.

Keywords: Probiotic, Dumbo Catfish, Feed, Growth, Survival Rate
*Corresponding author (email : suminto57@yahoo.com)

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