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PENGARUH KONSENTRASI TEPUNG ASTAXANTHIN PADA PAKAN TERHADAP PENINGKATAN WARNA IKAN MASKOKI (Carassius auratus) Effect of Astaxanthin Concentration in Diet to Increase Color Of Goldfish (Carassius auratus) Artha Maria Gabriella Sitorus; Syammaun Usman; Nurmatias Nurmatias
AQUACOASTMARINE Vol 3, No 3 (2015): JURNAL AQUACOASTMARINE VOLUME 3, NO 3, JUNI 2015
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Goldfish in Indonesia is popular and likely ornamental fish for all of society. Goldfish have a stable price in the market and quite affordable with the ever-increasing market demand. Goldfish as ornamental fish have interesting colour and excellence in body shapes especially the beauty of their fins. The bright and brilliant colors of Goldfish is an attraction that affect it economical values. Thus, the color should be upgraded and maintained its quality. Such efforts to increase color will be done by pigments manipulation techniques with adding suplement into the feeds. The suplement pigments can be obtained from Astaxanthin. The purpose of this research is to know dosage Astaxanthin that optimal to increase the color of Goldfish.this research using Complete Random Design (CRD) with three repetition, with the dose treatment by 0%, 1%, 3%, and 5% for up during 28 days. Additional Astaxanthin through the feed can increasing colors of the Goldfish. The nutrient that enriched with Astaxanthin dosage is 1% can produce brighter colors than the other dose. Additional Astaxanthin in the feed has no effect on growth of GoldfishKeywords : Astaxanthin, Carassius auratus, Color, Goldfish
PENGARUH KONSENTRASI TEPUNG Spirulina platensis PADA PAKAN TERHADAP PENINGKATAN WARNA IKAN MASKOKI (Carassius auratus) Effect of Spirulina platensis Concentration in Diet to Increase Color of Goldfish (Carassius auratus) Ricky Suranta Barus; Syammaun Usman; Nurmatias Nurmatias
AQUACOASTMARINE Vol 2, No 4 (2014): JURNAL AQUACOASTMARINE VOLUME 2, NO 4, DESEMBER 2014
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Goldfish (Carassius auratus) is a beautiful freshwater ornamental fish. Price of goldfish depends on several factors, one of them is the body color. Goldfish have stable price in the market whether market demand that continues to increase. Goldfish have characteristics from the type of colors and the beauty of their fins. Color is aesthetics ornamental fish that affect it economical values. Thus, the color should be upgraded and maintained its quality. Such efforts to increase color will be done by adding natural pigment into the feeds. Pigments natural resources can be obtained from Spirulina platensis. The purpose of this research is to know dosage Spirulina platensis that optimal to increase the color of Goldfish. This Research using Complete Random Design (CRD) with three repetition, with the dose treatment by 0 %, 1 %, 3 %, and 5 % for up during 28 days. Additional Spirulina platensis through the feed can increasing colors of the Goldfish. The nutrient that enriched with Spirulina platensis dosage 3% can produce colors brighter than the other dose. Additional Spirulina in the feed has no effect on growth of Goldfish.Keywords: Carassius auratus, Goldfish, Spirulina platensis, Color
PENGARUH EKSTRAK DAUN Sonneratia alba TERHADAP INFEKSI BAKTERI Aeromonas hydrophila PADA IKAN NILA The Effect of Sonneratia alba Leaf Extract on Aeromonas hydrophila Bacterial Infection in Tilapia Dumaria R. M. L Tobing; Yunasfi Djayus; Nurmatias Nurmatias
AQUACOASTMARINE Vol 5, No 3 (2017): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Motile Aeromonas Septicemia (MAS) is a disease that attacks on the tilapia fish farming, both in the phase of seed and adult. One of alternative to prevent disease by using the extracts from mangrove plants. The aims of this study was to determine the effectiveness of Sonneratia alba leaf extract in tackling MAS disease in Nila fish and to determine the dose of S. alba extract on Tilapia fish. The extraction from S. alba leaves was made into powder form and then combined with artificial feed type FF-999. The LD50 test was performed on Nila fish for 24 hours. This study used Completely Randomized Design with four treatments: P0 (without of extract S. alba), P1 (1% extract S. alba), P2 (2% extract S. alba), P3 (3% extract S. alba). The results showed that the treatment of P1 and P2 could inhibit the growth of A. hydrophila.Keywords : Sonneratia alba, Tilapia, Antimicrobial Activity, Aeromonas hydrophila.
TINGKAT PENGGUNAAN Azolla pinnata PADA PAKAN TERHADAP PERTUMBUHAN IKAN NILA (Oreochromis niloticus) Grade of use of azolla pinnata the feed to growth of nila fish (Oreochromis niloticus) Daniel Sinaga; Syammaun Usman; Nurmatias Nurmatias
AQUACOASTMARINE Vol 4, No 1 (2016): JURNAL AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Nila fish is economic valuable fish, consumer demand increasing, but hasnot been followed by intensive cultivation and optimal. One of attempt toovercome these problems by substituting commercial feed with fish meat mealAzolla pinnata for growth nila fish. The tested fish are nila fish size 6 cm whichmaintained in an pain diameter 50 cm by 12 unit. With completely randomizeddesign. With treatment commercial pakan 100% without added azolla flour,commercial pakan 94 % added 10 % azolla flour, commercial pakan 88 %added 20 % azolla flour, and commercial pakan 82 % added 30 % azolla flour,the result showed that azolla flour can be used as a substitute for fish meal in fishfeed. The fourth feed that gives the best growth as feeds commercial pakan 82 %added 30 % azolla flour with weight growth of 4.33 g and length growth 2.23 cm.Keywords : Oreochromis niloticus, Azolla pinnata flour, Growth
PENGARUH PROFITABILITAS DAN LEVERAGE TERHADAP NILAI PERUSAHAAN DENGAN KEBIJAKAN DIVIDEN SEBAGAI VARIABEL INTERVENING PADA PERUSAHAAN YANG TERDAFTAR DI BEI TAHUN 2013 Fauzi, Arfian; Nurmatias, Nurmatias
Ekonomi dan Bisnis Vol 2, No 2 (2015): Ekonomi dan Bisnis
Publisher : Fakultas Ekonomi dan Bisnis, Universitas Pembangunan Nasional Veteran Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (798.895 KB) | DOI: 10.35590/jeb.v2i2.719

Abstract

This study was conducted to examine the effect of Profitability (ROE), Leverage (DER) and Dividend Policy (DPR) on Firm Value (PBV) of listed companies in the ISE period 2013. The population in this study is from whole companies which listed in ISE during 2013 period. Data is taken from the company’s financial reports. Gained of total sample 50 companies. The analysis technique is using path analysis with multiple linear regression and single regression. Hypotesis test is using F test, t test, and R2 test with level of significance 5%. The results showing that Profitability (ROE) has no significance influence on Dividen Policy (DPR), Leverage (DER) has significance influence on Dividend Policy (DPR). Profitability (ROE) has significance influence on Firm Value (PBV), Leverage (DER) and Dividend Policy has no significance influence on Firm Value (PBV). We suggest to investors in Indonesia Stock Exchange to notice another factors that influence the Firm Value (PBV) in making decision of investments. The Profitability variable (ROE) in this study has the most influence on Firm Value variable (PBV), which proven by smaller number of t-count than t-table and has significance number 0,000.
PENGARUH KINERJA KEUANGAN TERHADAP NILAI PERUSAHAAN DENGAN PENERAPAN GOOD CORPORATE GOVERNANCE PADA PERUSAHAAN YANG TERDAFTAR DI BURSA EFEK INDONESIA Kirana, Dwi Jaya; Nurmatias, Nurmatias
Ekonomi dan Bisnis Vol 1, No 2 (2014): Ekonomi dan Bisnis
Publisher : Fakultas Ekonomi dan Bisnis, Universitas Pembangunan Nasional Veteran Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (456.363 KB) | DOI: 10.35590/jeb.v1i2.694

Abstract

This research aims to investigate the influence of firm performance and good corporate governance on firm value and investigate the interaction firm performance with good corporate governance. This study take 334 sample financial reporting of listed firm on Bursa Efek Indonesia in year 2012. The results showed that the index corporate governance (ICG), firm performance of ROA and ROE have not significant effect to of firm value PBV. But give significant positive effect if index corporate governance interacted with firm performance on firm value PBV.
Absorbsi Kadmium (Cd) dan Timbal (Pb) oleh Bandeng (Chanos chanos) pada Tambak Komplangan di Desa Tanjung Rejo Kecamatan Percut Sei Tuan Daniel Abas Herman Silalahi; Yunasfi Djayus; Nurmatias Nurmatias
AQUACOASTMARINE Vol 6, No 3 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Aplication of silvofishery cultivation technique in TanjungRejo Village, PercutSei Tuan Sub District still not well managed. This happens because it enters The PaluhMerbau water source directly without water management process first. Remembering The PaluhMerbau is still intersect with Deli Estuary that has been polluted heavy metals then the autors are interested to do this research. This study aims to calculate the amount of heavy metal concentrationabsorbed by milkfishin Tanjung Rejo Village Percut Sei Tuan Subdistrict.This scientific report surveyed within a month in July 2017 and analyzed using an atomic absorption spectrophotometer (AAS).The result of UPT LPPMHP Medan test showed that the concentration of cadmium and lead on milkfish’s liver and milkfish’s gill has been contaminated by heavy metals cadmium and lead but still belowquality standards.Keywords: Heavy metal, cadmium, lead, milkfish and silvofishery.
ANALISIS FINANSIAL USAHA PERIKANAN YANG BERBEDA PEMASARANNYA Tampubolon, Dewi Murni; Ahmad, Muchtar; Nurmatias, Nurmatias
Jurnal Perikanan dan Kelautan Vol 16, No 02 (2011)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.16.02.%p

Abstract

Financial analysis of the artisanal fishery by fish catch marketingdifferences done in Bagan Serdang village, North Sumatra, using survey methodsin data collecting. Fishermen, whose fish-catch market in the government managefish landing place and in the private fish landing place were interviewed. Financialanalysis result shows that yearly income of fishing that market their catch at thegovernment fish landing place earn Rp6,045,000 in average, while at the privateone earn only Rp2,600,000 (t-observe = 3.10 > t-tabel 0,01 = 2.42), thus verysignificance in income difference due to its distinction market pattern. All fishingshow efficient, as BCR > 1 and PPC less than 1.5 years. Eventhough, most of thefishers prefer to market their fish-catch at private landing place, mainly because ofreciprocity, better service and governance in the private landing place, beside‘patron-client’ relationship, in spite of its exploitative in their traditionalrelationship but tight attachment and dependency of fishermen to the individualowner of private landing place.
Pengaruh Garam (NaCl) terhadap Pengendalian Infeksi Argulus sp. pada Ikan Mas (Cyprinus carpio) The Influence of Salt (NaCl) against Argulus sp. Infection Control on Goldfish (Cyprinus carpio) Anasthazya Christy Hanna Sinaga; Syammaun Usman; Nurmatias Nurmatias
AQUACOASTMARINE Vol 3, No 5 (2015): JURNAL AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The development of goldfish cultivation has a good prospect due to theincreasing market demand. But the attack Argulus sp. on hatchery goldfish is a seriousproblem that can cause a loss of the farmers that is decreased production of fish, as wellas the low value. This research aims to know the extent to which the effectiveness saltagainst Argulus sp. infection in goldfish (Cyprinus carpio) and to know the optimallevels of salt in the control of infection of Argulus sp. on goldfish. This study used aRandomized Complete Design (RAL), namely 3 and 1 control treatment with eachtreatment was repeated as many as 3 times, with a dose of the treatment 3 ppt, 6 ppt, 9ppt. Data analyzed with ANOVA. The results showed that the giving of the salt effecton the value of the prevalence, intensity of infection of Argulus sp. and survival rate ofgoldfish. The concentration of salt in controlling attacks Argulus sp. found in thetreatment of the G3 (9 ppt) that is the value of the prevalence of 60,17%, the value ofthe intensity of 1,54 ind/tail with survival rates of fish 93,33%.Key words : Cyprinus carpio, Argulus sp., salt (NaCl), prevalence, intensity
Penambahan Berbagai Sumber Beta Karoten Alami Dalam Pakan Terhadap Peningkatan Kecerahan Warna Ikan Koi (Cyprinus carpio) Issue of Various Sources of Natural Beta Carotene In Feed To Koi Fish (Cyprinus carpio) Color Brightness Enhancement Evan Aspirata Hulu; Syammaun Usman; Nurmatias Nurmatias
AQUACOASTMARINE Vol 3, No 5 (2015): JURNAL AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The potential for aquaculture in Indonesia has a very promising opportunity.The ornamental fish have a beauty value of its body shape, active movement and colordiversion. Koi (Cyprinus carpio) is one type of ornamental fish that can be cultered. Koifish which have beautiful and bright colors can be have a high value. Natural colormatters in feed is done to improve and maintain the color of ornamental fish. Materialsof beta carotene used were astaxanthin, carrot powder and spirulina. The purpose ofthis research is to determine the best effect of natural beta carotene issue to increasecolors brightness in koi fish and determine the treatment efficient or not. This researchused Completely Randomized Design (CRD) with four treatments: T (without givingcolor material), W (carrots), S (spirulina) and A (astaxanthin) each of dose 3% andthree repetition. Data were analyzed with ANOVA system. The result has shown thatissue 3% of astaxanthin produce the best color brightness at 0,97 point than the othertreatment. The result showed that the treatment of color materials issue in feed wasefficient (benefit) because of the efficiency values smaller than 1 (one).Keywords: Cyprinus carpio, koi fish, color, carotenoids