scholarly journals PENGARUH WARNA WADAH PADA PERTUMBUHAN DAN PERKEMBANGAN LARVA IKAN RAINBOW KURUMOI (Melanotaenia parva)

2018 ◽  
Vol 13 (2) ◽  
pp. 137
Author(s):  
Riani Rahmawati ◽  
Tutik Kadarini Tutik Kadarini
Keyword(s):  
Growth Rate ◽  
Specific Growth ◽  
Specific Weight ◽  
Ornamental Fish ◽  
Growth And Survival ◽  
Environmental Manipulation ◽  
Weight Growth ◽  
Endemic Fish ◽  
Ad Libitum ◽  
Tank Color

Rainbow kurumoi (Melanotaenia parva) merupakan salah satu ikan endemik Indonesia yang berasal dari Danau Kurumoi, Papua. Ikan ini merupakan salah satu komoditas potensial untuk perdagangan ikan hias. Akan tetapi, pemenuhan permintaan ikan rainbow masih mengandalkan hasil tangkapan alam. Rekayasa lingkungan diperlukan untuk meningkatkan produksi ikan rainbow ini. Penelitian ini bertujuan untuk mengetahui warna wadah yang sesuai untuk optimalisasi pemeliharaan larva ikan rainbow kurumoi. Perlakuan dalam penelitian ini adalah: A) warna wadah merah; B) warna wadah biru; dan C) warna wadah hijau. Larva dipelihara dalam wadah volume 4 L dengan kepadatan 20 ekor/L selama 28 hari. Pakan yang diberikan berupa infusoria, Rotifer, Artemia, dan Moina secara bertahap dengan metode ad libitum. Hasil penelitian menunjukkan bahwa larva yang diberikan perlakuan beda warna wadah tidak berbeda nyata (P>0,05) terhadap pertumbuhan dan sintasan. Perlakuan A (warna wadah merah) menunjukkan laju pertumbuhan spesifik panjang tertinggi yaitu sebesar 2,2 ± 0,1%/hari; dilanjutkan perlakuan B (2,1 ± 0,7%/hari); dan terakhir perlakun C (1,8 ± 0,7%/hari). Untuk laju pertumbuhan spesifik berat pada perlakuan A sebesar 6,7 ± 1,2%/hari; diikuti perlakuan C (6,4 ± 0,3%/hari) dan perlakuan B (5,5 ± 1,6%/hari). Perkembangan sirip sudah lengkap pada umur 27 hari setelah menetas dengan panjang total tubuh (TL) berkisar antara 8,0-8,6 mm.Rainbow kurumoi (Melanotaenia parva) is one of endemic fish from Kurumoi Lake, Papua, Indonesia. The fish is considered one of the potential commodities in the ornamental fish market. However, to supply the demand for rainbow fish still relies on wild capture. Environmental manipulation is needed to improve the production of rainbow fish. The aim of this study was to evaluate the effects of tank color on the growth of kurumoi rainbow larvae. The treatments in this study were: A) red; B) blue; and C) green tanks. The larvae were reared in the 4 L volume tanks with a density of 20 ind./L for 28 days. The larvae were fed, in stages, with infusoria, Rotifer, Artemia, and Moina with ad libitum method. The results showed that the red tank (A) had the highest specific growth rate of length (2.2 ± 0.1%/day) followed by blue (B) (2.1 ± 0.7%/day) and green (C) (1.8 ± 0.7%/day) tanks. The red tank (A) had the highest specific weight growth rate (6.9 ± 1.2%/day) followed by the green (C) (6.4 ± 0.3%/day) and the lowest was blue (B) (5.5± 1.6%/day) tanks. The larvae maintained in the red tanks showed brighter color than that of the other two tanks. The fins development has completed on 27 days after hatching (8.0-8.6 mm TL) [ FOR WHICH TANK]. This research indicates that the tank colors do not have any influence on the growth and survival (P>0.05) of rainbow kurumoi larvae. 

scholarly journals Size composition and production characteristics of atlantic cod and pollock juveniles of the Zelenetskaya Bay (Eastern Murman) in 2018

2021 ◽  
Vol 12 (3-2021) ◽  
pp. 13-19
Author(s):  
O.V. Bondarev ◽  
Keyword(s):  
Growth Rate ◽  
Gadus Morhua ◽  
Specific Growth ◽  
Atlantic Cod ◽  
Size Composition ◽  
Specific Weight ◽  
Specific Production ◽  
Summer Period ◽  
Weight Growth ◽  
Production Characteristics

In this article presented data on the growth of the atlantic cod Gadus morhua Linnaeus, 1758 and pollock Pollachius virens (Linnaeus, 1758) juveniles in Zelenetskaya Bay in 2018. The daily specific growth rate and production rate were calculated. The length of atlantic cod juveniles in July–September varied from 3.5 to 7.9 cm, and pollock – from 2.5 to 9.4 cm. The daily specific weight growth rate (qw) of atlantic cod juveniles in Zelenetskaya Bay from July to August was 0.41, and from August to September – 1.08; for pollock juveniles, these indicators are 1.32 and 0.94, respectively. The daily specific production (C) of atlantic cod juveniles in Zelenetskaya Bay over the summer period varied from 0.015 to 0.036, and of pollock juveniles – from 0.011 to 0.042.

scholarly journals LAJU PERTUMBUHAN DAN EFISIENSI PAKAN IKAN NILA (Oreochromis niloticus) YANG DIPELIHARA DALAM KOLAM TERPAL YANG DIPUASAKAN SECARA PERIODIK

2018 ◽  
Vol 5 (1) ◽  
pp. 45-55
Author(s):  
Intan Permata Sari ◽  
Yulisman . ◽  
Muslim .
Keyword(s):  
Water Quality ◽  
Growth Rate ◽  
Survival Rate ◽  
Specific Growth Rate ◽  
Feed Efficiency ◽  
Specific Growth ◽  
Specific Weight ◽  
Feed Consumption ◽  
Weight Growth ◽  
Randomized Design

ABSTRACT    Starved was one effort that can reduce the feed consumption and feed residues without decreasing growth of cultured fish. The purpose of this research was to determine the effect of starved periodically to the specific growth rate and feed efficiency of tilapia reared in the pond. The research had been conducted in Laboratorium Budidaya Perairan, Faculty of Agriculture, Sriwijaya Unversity on April – Juni 2016. This research method used Completely Randomized Design with four treatments and three replications that was every day feed without starvation (P0), one day feed one day starvation (P1), two days feed one day starvation (P2) and three days feed one day starvation (P3). Parameters of this research are specific growth rate, feed efficiency, survival rate and water quality (temperature, pH, DO, ammonia). The result showed that starved periodically significantly effect to the growth rate and feed efficiency of cultured tilapia in the pond. Treatment P1 (one day feed one day starvation) gave highest specific weight growth rate and specific length growth rate which were 2.32%.day-1 and 1.27%.day-1 then feed efficiency was 84.46%. The highest survival rate occurred in treatment P1 (one day feed one day starvation) 82%. Water quality of this research were temperature 27.0-31.5 oC,  pH 6.8-7.9, dissolved  oxygen 4.53-7.23 mg.L-1, and ammonia 0.01-0.30 mg.L-1. Keywords : Feed Efficiency, Specific growth rate, Starved, , Tilapia.

scholarly journals Substitution of natural feed with artificial feed on the survival rate and growth rate of giant-snakehead Channa micropeltes

2021 ◽  
Vol 20 (2) ◽  
pp. 174-180
Author(s):  
Sarmila ◽  
Susilawati Susilawati ◽  
Sri Warastuti
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Specific Growth ◽  
Control Treatment ◽  
Growth And Survival ◽  
Weight Growth ◽  
Randomized Design ◽  
Trash Fish ◽  
Completely Randomized Design ◽  
And Control

The purpose of this study was to determine the best percentage of artificial feed substitution for growth and survival rate of giant-snakehead. This study used a completely randomized design (CRD) with 4 levels of artificial feed substitution dose treatment, namely 25%, 50%, 75%, 100%, and control (without artificial substitution). The feed used in the form of fresh trash fish mixed with artificial feed FF-999 with a protein content of 35%. The results showed that the control treatment (100% trash fish) gave the best survival rate and spesific growth rate of 75% and 2.12%/day, respectively. Meanwhile, the percentage of artificial feed substitution treatment which gave the best survival rate and specific growth rate was found in the substitution percentage treatment of 25% artificial feed with a survival rate of 66.67% and a daily weight growth rate of 1.89%/day. Substitution of 100% artificial feed caused death with a 0% survival rate. Keywords: artificial feed, feed substitution, giant-snakehead, survival rate, growth ABSTRAK Penelitian ini bertujuan menentukan persentase substitusi pakan buatan yang terbaik untuk laju pertumbuhan, dan tingkat kelangsungan hidup ikan toman. Penelitian ini menggunakan rancangan acak lengkap (RAL) dengan perlakuan 4 level dosis substitusi pakan buatan yaitu 25%, 50%, 75% dan 100% serta 1 kontrol (tanpa substitusi pakan buatan). Pakan yang digunakan berupa ikan rucah segar dicampur dengan pakan buatan berupa pellet dengan merk FF-999 berkadar protein 35%. Hasil penelitian menunjukkan bahwa perlakuan kontrol (100% ikan rucah) memberikan tingkat kelangsungan hidup dan laju pertumbuhan berat harian terbaik masing-masing sebesar 75% dan 2.12%/hari. Sementara untuk perlakuan persentase substitusi pakan buatan yang memberikan tingkat kelangsungan hidup dan laju pertumbuhan terbaik terdapat pada perlakuan persentase substitusi sebesar 25% pakan buatan dengan tingkat kelangsungan hidup 66.67% dan laju pertumbuhan berat harian 1.89%/hari. Substitusi 100% pakan buatan menyebabkan kematian dengan tingkat kelangsungan hidup 0%. Kata kunci: ikan toman, kelangsungan hidup, laju pertumbuhan, pakan buatan, substitusi pakan.

Effect of density on growth and survival of ornate rock lobster, Panulirus ornatus (Fabricius, 1798), in a flow-through raceway system

2001 ◽  
Vol 52 (8) ◽  
pp. 1425 ◽  
Author(s):  
C. M. Jones ◽  
L. Linton ◽  
D. Horton ◽  
W. Bowman
Keyword(s):  
Growth Rate ◽  
Specific Growth Rate ◽  
Specific Growth ◽  
Feeding Strategy ◽  
Experimental Unit ◽  
Rock Lobster ◽  
Growth And Survival ◽  
Mean Size ◽  
Monthly Sample ◽  
Flow Through

Juvenile ornate rock lobsters (Panulirus ornatus) (3.240.09 g; 13.80.13 mm CL) captured from the wild were stocked at three densities (14, 29, and 43 m–2) within each of four 4000-L fibreglass raceway tanks with flow-through seawater supply. Lobsters were provided with shelters consisting of opaque polyethylene platforms, 600 mm × 600 mm, supported on six 100-mm legs and were fed continually through the night with a commercial penaeid prawn (P. japonicus) pellet supplemented with prawn flesh once per day. Growth and survival were monitored by means of a monthly sample of 20 lobsters from each experimental unit. After 272 days, density treatments did not differ significantly in survival, which averaged 52.5% (2.8). Lobster size was also unaffected by density, and mean size for all lobsters was 225.34.68 g (61.84.7 mm CL) at harvest. Mortality was consistent through time and was almost entirely attributable to cannibalism of postmoult individuals. The cannibalism may have been due to inappropriate shelter and feeding strategy. Despite higher mortality than anticipated, growth was rapid, representing a specific growth rate of 1.56% day–1, sufficient to permit growth from 3 g to 1 kg within 18 months. The experiment confirmed the excellent potential of P. ornatus for commercial aquaculture.

PENGARUH EKSTRAK KASAR BUAH PALA MYRISTICA ARGENTEA TERHADAP PERTUMBUHAN IKAN KOI CYPRINUS CAPRIO

2021 ◽  
Vol 4 (1) ◽  
pp. 7-10
Author(s):  
Nuryanti Leko ◽  
Sutia Budi ◽  
Mardiana Mardiana ◽  
Dahlifa Dahlifa
Keyword(s):  
Growth Rate ◽  
Crude Extract ◽  
Research Method ◽  
Ornamental Fish ◽  
Good Effect ◽  
Length Growth ◽  
Weight Growth ◽  
Randomized Design ◽  
Test Parameters ◽  
Completely Randomized Design

Ikan koi di Indonesia merupakan ikan hias favorit dan banyak digemari masyarakat luas karena tubuhnya yang mempesona dan harganya relatif tidak terlalu mahal. Ikan koi sekarang ini masih menjadi salah satu komoditas perdagangan yang cukup baik dalam bidang perikanan. Tujuan dari penelitian ini adalah untuk mengetahui Pengaruh  Ekstrak Kasar Buah Pala Myristica Argentea  Terhadap Pertumbuhan Ikan Koi Cyprinus Caprio. Metode penelitian yang digunakan adalah Rancangan Acak Lengkap (RAL) ,dengan empat perlakuan dan tiga ulangan yaitu perlakuan A (Dosis 5% ekstrak kasar  buah pala), perlakuan B (Dosis 10% ekstrak kasar buah pala), perlakuan C (Dosis 15% ekstrak kasar buah pala) dan perlakuan D (   Dosis 0 % ekstrak kasar buah pala). Parameter uji berupa lajui pertumhuhan bobot dan pertumbuhan panjang. Hasil penelitian menunjukkan bahwa ekstrak Kasar Daging Buah Pala myristica argentea memberikan pengaruh yang baik terhadap pertumbuhan ikan ko setelah diberikan perlakuan.. Dosis yang baik untuk pertumbuhan berat dan panjang ikan koi ialah dosis  10% - 5%. Koi fish in Indonesia is a favorite ornamental fish and much-loved by the wider community because of its charming body and relatively inexpensive price. Koi fish is still one of the trade commodities that is quite good in the field of fisheries. The purpose of this study was to determine the Effect of Crude Extract of Nutmeg Myristica Argentea on the Growth of Cyprinus Caprio Koi Fish. The research method used was a completely randomized design (CRD), with four treatments and three replications, namely treatment A (5% dose of nutmeg crude extract), treatment B (10% dose of nutmeg crude extract), treatment C (15% dose of nutmeg extract). crude nutmeg) and treatment D (Dose of 0% crude extract of nutmeg). Test parameters in the form of weight growth rate and length growth. The results showed that the crude extract of the Nutmeg myristica argentea had a good effect on the growth of koi fish after being given treatment. A good dose for the growth of weight and length of koi fish is a dose of 10% - 5%

scholarly journals PERGANTIAN PAKAN TERHADAP PERTUMBUHAN DAN KELANGSUNGAN HIDUP LARVA IKAN GURAMI (Osphronemus gouramy) TURN FEED ON THE GROWTH AND SURVIVAL OF FISH LARVAE CARP (Osphronemus gouramy)

2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Eka Indah Raharjo ◽  
Hastiadi Hasan ◽  
Darmawan .
Keyword(s):  
Growth Rate ◽  
Specific Growth Rate ◽  
Specific Growth ◽  
Fish Larvae ◽  
Average Length ◽  
Natural Food ◽  
Growth And Survival ◽  
Quality Of Water ◽  
Randomized Design ◽  
Absolute Growth

ABSTRAK Penelitian bertujuan untuk mengetahui pergantian pakan. penelitian menggunakan Rancangan Acak Lengkap yang terdiri dari 5 perlakuan dan 3 ulangan. Susunan perlakuan adalah sebagai berikut : Perlakuan A : eguchi 10 hari dan infusoria 10 hari, Perlakuan B : infusoria 10 hari dan eguchi 10 hari, Perlakuan C : Eguchi 20 hari, Perlakuan D : Infusoria 20 hari dan Perlakuan E : campuran eguchi 50% dan Infusoria 50% selama 20 hari. Penelitian ini dilakukan selama 20 hari untuk mengetahui laju pertumbuhan spesifik bobot, laju pertumbuhan mutlak panjang, kelangsungan hidup dan kualitas air sebagai data penunjang. Hasil penelitian menunjukkan pergantian pakan alami dengan pakan buatan menghasilkan respon yang baik dalam pertumbuhan larva ikan gurami. Pergantian pakan buatan (eguchi) dengan pakan alami (infusoria)(perlakuan A) memberikan hasil terbaik dengan rata – rata laju pertumbuhan spesifik bobot 5,3256%, rata – rata laju pertumbuhan mutlak panjang 5.70 mm dan rata – rata kelangsungan hidup 78.89%.  Kata Kunci : Infusoria, Eguchi, Larva Ikan Gurami, Laju Pertumbuhan ABSTRACT Research was aimed to determine the change of feed. research using completely randomized design consisting of 5 treatments and 3 replications. The composition of the treatment is as follows: Treatment A: Eguchi 10 days and infusoria 10 days, Treatment B: infusoria 10 days and Eguchi 10 days, Treatment C: Eguchi 20 days, Treatment D: Infusoria 20 days and Treatment E: a mixture of Eguchi 50% and infusoria 50% for 20 days. This research was conducted for 20 days to determine the specific growth rate weight, the absolute growth rate of long survival and quality of water as supporting data. The results showed turnover natural feed with artificial feed to produce a good response in the growth of larval carp. Substitution of artificial feed (Eguchi) with natural food (infusoria) (treatment A) gives the best results with the average - average specific growth rate 5.3256% weighted, averageabsolute growth rate, average length of 5.70 mm and survival rate 78.89% . Keywords : Infusoria, Eguchi, Fish larvae Gurame, Growth Rate

scholarly journals Evaluation of larvae production and growth of juvenile red tilapia NIFI F1 during the nursery phase

2019 ◽  
Vol 18 (3) ◽  
pp. 251
Author(s):  
Adam Robisalmi ◽  
Priadi Setyawan ◽  
Bambang Gunadi
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Specific Growth Rate ◽  
Seed Production ◽  
Specific Growth ◽  
Stocking Density ◽  
Brood Stock ◽  
Female Ratio ◽  
Red Tilapia ◽  
Ad Libitum

Genetic quality improvement can be done through breeding programs. The indicator of success in the selection is the improvement of the character of production. Larval production and growth of NIFI of F1generation red tilapia seeds in the selection and its control parents were evaluated in this study. The research was conducted at the Fish Breeding Research Center for four months. Spawning was carried out on freshwater ponds of cage with size of  1 x 1 m. Tilapia brood stock were stocked with male to female ratio of 1: 1. The larvae rearing were conducted in the cage with size 2x2x1 m3 and stocking density 125 m-2. Pellets with a protein content of 38-40% are given to ad libitum larvae three times a day for first month, and then feeding rate was given 15-20% daily from biomass. Seed production, growth, specific growth rate, and survival rate were observed. The results of the experiment show a difference between fish selected and control. Seed production of selection reached 540 ± 114 and controls   508 ± 142. The growth performance of selected red tilapia juvenile showed higher compared with the control. The mean length  of  selected population  reached 6.33 ± 0.43 cm , weight gain 6.60 ± 0.52 g, specific growth rate 7.33 ± 0% g days-1 and survival rate  81.50 ± 4.46% were respectively and the control population  5.76 ± 0.52 cm ; 4,90 ± 0.58 g; 4.50 ± 0.35% g days-1; and 74.85 ± 3.26%. These values indicate that the growth of red tilapia juvenile NIFI F1 generation was increased 25.76%.AbstrakSalah satu upaya yang dapat dilakukan untuk meningkatkan kualitas genetik yaitu melalui program pemuliaan. Per-baikan karakter reproduksi dan pertumbuhan dapat digunakan sebagai indikator keberhasilan seleksi. Penelitian ini bertujuan untuk mengevaluasi produksi larva dan pertumbuhan benih ikan nila merah NIFI F1 dari induk seleksi dan kontrol. Kegiatan dilaksanakan selama empat bulan di Balai Riset Pemuliaan Ikan. Pemijahan dilakukan di kolam air tawar pada hapa 1 m x1 m.  Perbandingan induk ikan nila jantan dan betina 1:1. Larva yang sudah dipanen dimasukkan pada hapa pendederan ukuran 2x2x1 m3 dengan padat tebar 125 ekor m-2 . Selama pendederan , larva diberi pakan (protein 38-42%) secara ad libitum tiga kali sehari pada bulan pertama dan selanjutnya diberi pakan dua kali sehari 15-20% dari biomassa. Pakan yang diberikan selama pendederan mempunyai protein berkisar 38-42%. Parameter yang diamati meliputi produksi larva, pertumbuhan, laju pertumbuhan spesifik, dan sintasan. Hasil penelitian menunjukkan produksi larva ikan nila merah seleksi yaitu 540±114 ekor dan kontrol 508±142 ekor. Performa pertumbuhan benih ikan nila merah seleksi menunjukkan hasil yang lebih tinggi dibanding kontrol dengan nilai pertumbuhan panjang 6,33 ±0,43cm, pertumbuhan bobot 6,60±0,52 g, laju pertumbuhan spesifik 7,33±0% g hari-1 serta sintasan 81,50±4,46%, se-dangkan populasi kontrol masing-masing 5,76±0,52 cm; 4,90±0,58 g; 4,50±0,35% g hari-1; dan 74,85±3,26%. Nilai ini menunjukkan bahwa ada peningkatan pertumbuhan sebesar 25,76% pada benih ikan nila merah NIFI F1.

scholarly journals The use of fish silage in different composition for the growth of carp Cyprinus carpio L.

2019 ◽  
Vol 7 (2) ◽  
pp. 365
Author(s):  
Julio David ◽  
Sartje Lantu ◽  
Henneke Pangkey ◽  
Lawrence J.L. Lumingas ◽  
Jeffrie F. Mokolensang ◽  
...  
Keyword(s):  
Growth Rate ◽  
Common Carp ◽  
Cyprinus Carpio ◽  
Specific Growth ◽  
Fish Feed ◽  
Weight Growth ◽  
Randomized Design ◽  
Significant Difference ◽  
Carp Cyprinus Carpio ◽  
Total Gain

This study aims to examine the fish silage for total gain weight, growth rate, and the specific growth rate of common carp (Cyprinus carpio L.), which is cultivated in 12 nets (1x0,5x1m), with the density of 10 fish (3-5 cm) on each net. The experimental design used was a completely randomized design (CRD) with 4 treatments and 3 replications; treatment A with 10% fish silage, treatment B with fish silage 20%, treatment C with 30% fish silage and treatment D were commercial pellet. The ANOVA test showed that the treatment effect among feed A, B, C, and D tested did not give a significant difference to total gain weight, growth rate and the specific growth of carp fry.Keyword: common carp, fish silage, fish feed, growth ABSTRAKPenelitian ini bertujuan untuk menelaah pemberian silase ikan bagi pertumbuhan mutlak, pertumbuhan nisbi, dan pertumbuhan harian ikan mas (Cyprinus carpio L.), yang dipelihara dalam petak-petak jaring berukuran 1x 0,5 x 1 m, dengan padat penebaran 10 ekor ikan berukuran  3-5 cm. Rancangan percobaan yang digunakan adalah rancangan acak lengkap (RAL) dengan 4 perlakuan dan 3 ulangan; perlakuan A pelet berkomposisi silase ikan 10%, perlakuan B pelet berkomposisi silase ikan 20 %, perlakuan C pelet berkomposisi silase ikan 30 % dan perlakuan D adalah pelet komersil. Uji ANOVA menunjukkan bahwa pengaruh perlakuan di antara pakan A, B, C, dan D yang diujicobakan tidak memberikan perbedaan yang nyata terhadap pertumbuhan mutlak, pertumbuhan nisbi dan pertumbuhan harian benih ikan mas.Kata kunci : ikan mas, silase ikan, pakan ikan, pertumbuhan

scholarly journals PENGARUH JENIS BAKTERI PROBIOTIK TERHADAP PERTUMBUHAN IKAN LELE MUTIARA YANG DIPELIHARA MENGGUNAKAN SISTEM BIOFLOK

2021 ◽  
Vol 9 (1) ◽  
pp. 41-48
Author(s):  
Harits Noodin ◽  
Ita Apriani
Keyword(s):  
Growth Rate ◽  
Bacillus Subtilis ◽  
Specific Weight ◽  
Fish Growth ◽  
Probiotic Bacteria ◽  
Feed Conversion ◽  
Growth And Survival ◽  
Randomized Design ◽  
Probiotic Treatment ◽  
Absolute Length

The main problems faced by fish farmers are waste, uneaten feed and feces.  Which can reduce water quality and have a significant impact on fish growth and survival. This study aims to determine the effect of giving various types of probiotics on the growth rate and viability of Mutiara catfish raised using the biofloc system. We used Lactobacillus sp., Bacillus subtilis, and Nitrobacter as probiotic bacteria. This study used a completely randomized design experimental method with 4 treatments and 3 replications, namely K = probiotic less/control, P1= Lactobacillus probiotic, P2= Bacillus subtilis probiotic, P3= Nitrobacter probiotic. Catfish are reared for 30 days, feeding 3 times a day with FR 5% of body biomass. The parameters observed were absolute length growth, survival, Feed Conversion Ratio (FCR) and Specific Growth Rate (SGR) which were analyzed using ANOVA (P <0.05) and Duncan's test to see the differences between treatments. The results showed that the bacteria probiotic treatment had no significant effect on FCR and fish survival, but had a Lactobacillus sp significant effect on growth in absolute length (3.96 ± 0.06 cm) and the growth rate of daily specific weight (5,45±0,18 %/day).  To increase the length and weight growth of catfish fry, probiotic bacteria of the type Lactobacillus sp. on cultivation media.Key words :biofloc, growth rate, lactobacillus, mutiara catfish, probiotics

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