scholarly journals Nutritional composition of shea nut (Vitellaria paradoxa, gaertn) byproducts and their digestibility by Nile tilapia (Oreochromis niloticus L.) juvenile

2015 ◽  
Vol 34 (2) ◽  
pp. 7
Author(s):  
NW Agbo ◽  
M Yeboah-Agyepong ◽  
G Owusu-Boateng
Keyword(s):  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Nutritional Composition ◽  
Vitellaria Paradoxa

scholarly journals The growth rate of Nile tilapia Oreochromis niloticus fry fed on fermented Lemna sp. meal

2017 ◽  
Vol 16 (1) ◽  
pp. 101 ◽  
Author(s):  
Rita Rostika ◽  
Yuli Andriani ◽  
Arthur Henry Abram ◽  
Apriana Vinasyiam
Keyword(s):  
Growth Rate ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Artificial Diet ◽  
Nutritional Composition ◽  
Feed Conversion ◽  
Daily Growth ◽  
Crude Lipid ◽  
C 30 ◽  
Effective Microorganism

<p class="Pa3"><strong>ABSTRACT </strong></p><p> </p><p class="Pa5">This research aimed to evaluate the supplementation of fermented <em>Lemna </em>sp. meal (FLM) in the artificial diet on the growth rate of Nile tilapia <em>Oreochromis niloticus</em>. The research design used was complete randomized design consisting of four treatments; A (0% FLM), B (20% FLM), C (30% FLM), and D (40% FLM) in triplicates. The parameters observed were the nutritional composition of LFM, daily growth rate (DGR), feed conversion ratio (FCR), survival rate (SR), and water quality. Fermentation with Effective Microorganism 4 (EM4) has increased crude protein and crude lipid of FLM respectively 5.60% and 5.76%. However it decreased the crude fiber of FLM up to 15.27%. The result suggested that supplementation of FLM 0–40% in the artificial diet could give DGR 0.81–1.20%, FCR 2.48–2.97; and SR 72%–84% in Nile tilapia. The addition of 40% LFM showed the best result among all treatments.</p><p> </p><p class="Pa5">Key words: <em>Lemna </em>meal, EM4, fermentation, Nile tilapia fry</p><p> </p><p> </p><p class="Pa3"><strong>ABSTRAK </strong></p><p> </p><p class="Pa5">Tujuan dari penelitian ini adalah untuk mengevaluasi penggunaan tepung <em>Lemna </em>sp. fermentasi (TLF) pada pakan buatan terhadap laju pertumbuhan ikan nila <em>Oreochromis niloticus</em>. Rancangan penelitian yang digunakan adalah rancangan acak lengkap (RAL) terdiri atas empat perlakuan, yaitu A (0% TLF), B (20% TLF), C (30% TLF), dan D (40% TLF) dengan masing-masing tiga ulangan. Parameter yang diamati dalam penelitian antara lain nilai nutrisi TLF, laju pertumbuhan harian (LPH) ikan nila, rasio konversi pakan (RKP), sintasan (SR), dan kualitas air. Fermentasi dengan <em>Effective Microorganism </em>4 (EM4) meningkatkan protein kasar dan lemak kasar TLF sebesar masing-masing 5,60% dan 6,76%, akan tetapi menurunkan serat kasar hingga 15,27%. Hasil penelitian menunjukkan bahwa pemberian TLF 0–40% dalam pakan komersial menghasilkan LPH 0,81–1,20%; RKP 2,48– 2,97; dan SR 72%–84%. Pemberian TLF sebanyak 40% merupakan perlakuan yang menunjukkan hasil terbaik.</p><p> </p><p>Kata kunci: tepung <em>Lemna</em>, EM4, fermentasi, benih ikan nila</p>

Characterization of Francisella noatunensis subsp. orientalis isolated from Nile tilapia Oreochromis niloticus farmed in Lake Yojoa, Honduras

2019 ◽  
Vol 133 (2) ◽  
pp. 141-145 ◽  
Author(s):  
E Soto ◽  
K Shahin ◽  
JJ Talhami ◽  
MJ Griffin ◽  
A Adams ◽  
...  
Keyword(s):  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Nile Tilapia Oreochromis Niloticus

The effect of vaccination in controling bacterial disease caused by Aeromonas hydrophila in nile tilapia (Oreochromis niloticus)

2014 ◽  
pp. 27
Author(s):  
Arne A Ratulangi ◽  
Reiny Tumbol ◽  
Hengky Manoppo ◽  
Henneke Pangkey
Keyword(s):  
Survival Rate ◽  
Aeromonas Hydrophila ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Bacterial Disease ◽  
Immersion Method ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Different Ages ◽  
Motile Aeromonas Septicaemia

This study aims to apply vaccination against bacterial disease. The purpose of vaccination is to trigger the immune respone both non-specific and specific of fish against bacteria Motile Aeromonas Septicaemia (MAS) caused by Aeromonas hydrophila. The vaccination for fish with different ages: 2-3 weeks and 5 weeks were done using immersion method. The fish were re-vaccinated (booster) after two weeks of the first vaccination. The survival rate was < 50 % for juveniles 2-3 weeks and > 50% for juveniles 5 weeks. Survival rate for juveniles 5 weeks was higher than juveniles of 2-3 weeks. This shows that organs of juveniles of 5 weeks were more complete than the 2-3 weeks juveniles. The age of fish is one of the important factors for successfully vaccination. Penelitian ini bertujuan untuk melakukan penerapan vaksinasi terhadap penyakit bakterial. Vaksinasi ditujukan untuk merangsang respon kekebalan non- spesifik dan spesifik pada tubuh ikan terhadap penyakit Motile Aeromonas Septicaemia (MAS) yang disebabkan oleh bakteri Aeromonas hydrophila. Vaksin diberikan pada benih ikan nila yang berbeda umur yaitu 2-3 minggu dan 5 minggu dengan menggunakan metode perendaman. Ikan divaksinasi ulang (booster) setelah 2 (dua) minggu dari vaksinasi yang pertama. Prosentase kelangsungan hidup < 50 % untuk benih umur 2-3 minggu dan > 50% untuk benih umur 5 minggu. Jumlah kematian benih umur 2-3 minggu lebih tinggi dari 5 minggu. Hal ini menunjukkan bahwa fungsi organ benih umur 5 minggu telah lebih lengkap dari pada benih umur 2-3 minggu. Umur ikan merupakan salah satu faktor penting penentu keberhasilan suatu kegiatan vaksinasi.

Incidence and molecular characterization of fungi and yeast isolated from cultured catfish and Nile tilapia

2020 ◽  
Vol 21 (3) ◽  
pp. 61-66
Author(s):  
Ola Hashem ◽  
Viola Zaki ◽  
Rawia Adawy
Keyword(s):  
Molecular Characterization ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Clarias Gariepinus ◽  
Fungal Species ◽  
High Rate ◽  
Fish Farms ◽  
Isolation And Identification ◽  
Penicillium Spp

Objective: To study the incidence and seasonal dynamics of different fungi affected freshwater fishes in Lake Manzala with molecular identification of the isolated fungi. Animals: 300 Nile tilapia (Oreochromis niloticus) and 300 catfish (Clarias gariepinus). Design: Descriptive study. Procedures: Random samples of Oreochromis niloticus (O. niloticus) and Clarias gariepinus (C. gariepinus) were collected from Manzala fish farms. Clinical and postmortem examination of fish was applied. Isolation and identification of different fungi were performed by conventional methods. Furthermore, the molecular characterization of isolated fungi was carried out. Results: C. gariepinus had a higher rate of infection with different fungal species than O. niloticus. Aspergillus spp. (Aspergillus niger and Aspergillus flavus) were the most fungal isolated from the examined fishes, followed by Penicillium spp. and Candida albicans. Aspergillus spp were detected in all seasons with a higher rate in summer and spring. A. flavus, A. niger, Penicillium spp. and C.albicans isolates were amplified from both C. gariepinus and O. niloticus at the specified molecular weight using PCR. Conclusion and clinical relevance: Fungal infection affected the fish showing different external and internal lesions, all species of Aspergillus were found in all seasons with a high rate in, hot seasons, summer and spring. The Prevalence of Penicillium and C. albicans were also reported. All fungal isolates were identified on the phenotypic and molecular bases.

Effect of low temperature on genomic DNA methylation in Nile tilapia (Oreochromis niloticus)

2013 ◽  
Vol 37 (10) ◽  
pp. 1460 ◽  
Author(s):  
Huaping ZHU ◽  
Maixin LU ◽  
Zhanghan HUANG ◽  
Fengying GAO ◽  
Xiaoli KE ◽  
...  
Keyword(s):  
Dna Methylation ◽  
Low Temperature ◽  
Oreochromis Niloticus ◽  
Genomic Dna ◽  
Nile Tilapia ◽  
Nile Tilapia Oreochromis Niloticus
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