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All Journal The Journal of Experimental Life Sciences (JELS) Research Journal of Life Science
Muhammad Musa
Brawijaya University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology Neuroscience

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Identification of Plankton on Fish Pond of Oreochromis niloticus Infected by Viral Nervous Necrosis Uun Yanuhar; Muhammad Musa; Dyah Tri Rahayu; Diana Arfiati
Research Journal of Life Science Vol 3, No 2 (2016)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (907.761 KB) | DOI: 10.21776/ub.rjls.2016.003.02.6

Abstract

The purpose of study is to determine the type of plankton found in cultivation pond of nile tilapia infected by VNN. The method is to identify the plankton in the water pond and testing the VNN that infects nile tilapia related to plankton eaten using Polymerase Chain Reaction (PCR). VNN identification results on the nile tilapia digestive tract stomach and intestines as well as plankton found in the stomach and intestines indicate VNN positively. Plankton found in the digestive tract of fish is division of Chlorophyta, Bacillariophyta, phylum Rotifera and Crustacea. It indicates that nile tilapia infected by VNN both on the gastrointestinal tract organs, stomatch or intestines and plankton were found with positive VNN digestive duct, while plankton found in water pond is VNN negative. The VNN infection depends on the nature of specifications VNN on nile tilapia and the plankton in the nile tilapia digestive duct.
Expression Virus-Like Particles (VLPs) at Geomembrane and Concret in Asian Pacific Shrimp Culture (Litopenaeus vannamei) Venny Nur Hidayah; Muhammad Musa; Yuni Kilawati
The Journal of Experimental Life Science Vol. 11 No. 3 (2021)
Publisher : Postgraduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jels.2021.011.03.06

Abstract

Asian Pacific Shrimp is an invertebrate that the most culture in aquaculture. But the high demand for shrimp makes farmers cultivate a high density. There are several ways to increase the density of shrimp culture, usually called geomembrane plastic and concrete ponds. The ponds are located in the Laboratory of Brackishwater and Seawater Fisheries, Probolinggo and Lucky Windu, Situbondo. Day of Culture (DOC) on Laboratory of Brackishwater and Seawater Fisheries in Probolinggo pond is 85 days both, while in Lucky Windu Situbondo is 81 days on pond 2, and pond  3B 133 days. The study aimed to evaluate correlations of VLPs towards geomembrane and concrete ponds. The research method has two observations: 1. Periodic observations; nitrite, ammonium, and shrimp were observed; 2. Last observation; sampling water for analysis VLPs was observed. Data of sampling water in the different ponds were then analyzed using Pearson correlation analysis to look for the level of tightness and direction of the relationship. The results have obtained that geomembrane VLPs and concrete VLPs has a very strong relationship, while the type of geomembrane and concrete was close to 1 > 0.5 and the result is 0.90, 0.96, 0.69, and 0.82. Water quality showed pH 8.1 at geomembrane, nitrite 0.2mg.L-1 at geomembrane, and ammonium of 0.44 mg.L-1 at concrete. The pond area in geomembrane pond 1 and 2 was 1600 m2, meanwhile in concrete both is 4300 m2, which mean in concrete ponds more the existence of VLPs is because due to the different pond area factors and indicates from detections of WSSV that the result was positive that makes environment factor in abundances VLPs. But VLPs have no effect on the growth of shrimp vaname during the cultivated process.Keywords: Asian Shrimp Pasific (L. vannamei), Virus-Like Particles (VLPs), Water Quality, and WSSV.
Co-Authors Diana Arfiati Dyah Tri Rahayu Venny Nur Hidayah Yanuhar, Uun Yuni Kilawati