e-Jurnal Rekayasa dan Teknologi Budidaya Perairan
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Modified Toca Colour Finder (M-TCF) Dan Kromatofor Sebagai Penduga Tingkat Kecerahan Warna Ikan Komet (Carasius Auratus Auratus) Yang Diberi Pakan Dengan Proporsi Tepung Kepala Udang (TKU) Yang Berbeda
Get PDFGoldfish is one of the ornamental freshwater fish which has interesting body colour. Efforts to increase the quality of colour needs to be done, by given the material which can increasing brightness of colour infeed. One of alternative to replace such materials is the shrimp head meal (SHM). The aim of this research was determined the relationship between increased colour intensity measured by using the Modified Toca Colour Finder (M-TCF) and the number of chromatophore cells in the epidermal layer of goldfish due to the addition of SHM in artificial feed. The research was conducted in Completed Randomize Design with the additional of SHM (0; 10; 12%) were given to 30 goldfish/aquaria for 45 days of cultured. The result showed that shrimp head meal gave significant difference by increasing colour intensity and the amount of chromatophore cells. Nevertheless the treatment did not give significant difference on growth. There was a positive correlation between the numbers of chromatophore cells with the colour intensity of goldfish. Optimum absorb of carotenoids occured in10% added of shrimp head meal
Efektifitas Ekstrak Daun Rhizophora Mucronata Dalam Menghambat Pertumbuhan Aeromonas Salmonicida Dan Vibrio harveyi
Get PDFInfectious diseases lead to reducing aquaculture productivity. The using of chemical antibiotic was avoided since their negative effect was known, i.e. created resistant bacteria, contaminating environment and fish meat. The purpose of the research is to find the active compound from Rhizophora mucronata leaf and their activity to inhibit pathogenic bacteria Aeromonas salmonicida and Vibrio harveyi. Extraction procedure conducted by using maceration technique to extract type of mangrove leaf (tip, main leaf, dried leaf), and organic solvent (hexan, ethylacetate, methanol). The result of this research showed that active compound from Rhizopra mucronata give negative response inhibiting Aeromonas salmonicida while postif to Vibrio harveyi . The tip of Rhizophora muncronata leaf is more effective to inhibit pathogenic bacteria, and ethylacetate is the best solvent to extract Rhizophora muncronata leaf. Lethal concentration (LC-50) from Rhizopra macronata is 200 ppm
Pengaruh Waktu Pemberian Probiotik Yang Berbeda Terhadap Respon Imun NonSpesifik Ikan Mas (Cyprinus Carpio L.) Yang Diuji Tantang Dengan Bakteri Aeromonas Salmonicida
Get PDFCommon carp (Cyprinus carpio) is one of the consumption fish which has high economic value. However, the efforts to increase carp production obstracted by diseases such as furunculosis by A. salmonicida. So that we have to consider the disease prevention method which safer such as probiotic. The aims of this research were to know effect of the time administrations of probiotic on non-specific immune responses and to know the best time administration of probiotic on non-specific immune responses of common carp injected by A. salmonicida. The research was conducted from August to October 2011. The research used three treatments (without administration of probiotic, administration of probiotic once every day, and administration of probiotic once every five days) with four replications. Data of total leukocyte and percentage of differential leukocyte were analyzed by using ANOVA, while RPS and water qualities were analyzed descriptively. The results showed the time administrations of probiotic showed a real impact on improving non-specific immune responses characterized by increased total leukocyte in carp, administration of probiotic once every five days resulted better non-specific immune responses, which had been seen from the highest total leukocyte and the highest RPS after being injected by A. salmonicida
Pengaruh Penambahan Zeolit Dalam Peningkatan Kinerja Filter Air Untuk Menurunkan Konsentrasi Amoniak Pada Pemeliharaan Ikan Mas (Cyprinus Carpio)
No full textCommon carp (Cyprinus carpio) is one of freshwater fish that growing very rapidly as a commercial fish. One of the factors that influence growth of common carp is water quality. Zeolite klinoptilolit were applied as filter in aquaculture water quality management. Zeolite was used to improve water quality, especially the consentration of ammonia. Zeolite works exploit the ability ion exchange of Na+ and K+, which is a cation that can be exchange serves to neutralize poisons in metabolism. The aim of this study are to know additional amount of zeolite that give the best result for decrease ammonia consentration at common carp culture. The experimental by used completely randomized design with 4 treatments.. The treatments were with addition zeolite of treatment B = 150 g; C= 300 g; D = 600 g, and treatment A without the zeolite addition. The results showed that the addition zeolite of 600 grams as a chemical water filter at common carp culture gave the best result for decrease ammonia concentration had a different effect on the concentration of ammonia was maintained for 60 days (P<0.05). However, the addition of zeolite as a water filter did not give different effects on absolute growth, daily growth rate, and survival of common carp (P>0,05)
Hormon Testosteron Dan Estadiol 17ß Dalam Plasma Darah Induk Betina Ikan Baung (Mystus Nemurus)
Get PDFThe research about application of bovine testicular extract on female baung catfish (Mystus nemurus) was done for determining an optimum dosage and application periode of bovine testicular extract. The aim of this research is to increase testosteron and estradiol 17β concentration on blood as gonad developing hormone on female baung catfish broodstock. This research used randomize blocked design with five treatments and three groups. Dosages of bovine testicular extract which used as treatment were 0; 0,75; 1,5; 2,5 and 4,5 mg/kg feed. The periodes of bovine testicular extract applied were 10; 20 and 30 days. This research used female baung catfish with average body weight of 400-500 g. This research done on July-September 2011 at Balai Benih Ikan Sentral (BBIS) Purbolinggo, East Lampung. Testosterone and estradiol 17β concentration was determined by Radioimmunoassay (RIA) technique at Indonesian Research Institute for Animal Production Ciawi, West Java. The result showed that the application of bovine testicular extract could increase testosteron and estradiol 17β concentration in blood plasma. Dosage 2.5 mg/kg feed could increase testosterone concentration on 278.91 ± 66.76 pg/ml and estradiol 17β concentration on 606.25 ± 187.97 pg/ml. The application periode of Bovine Testicular Extract for 30 days could increase testosteron and estradiol 17β concentration on 254.38 ± 93.84 pg/ml and 514.55 ± 137.22 pg/ml
Pemberian Molase Pada Aplikasi Probiotik Terhadap Kualitas Air, Pertumbuhan Dan Tingkat Kelangsungan Hidup Benih Ikan Mas (Cyprinus Carpio L.)
Get PDFHigh concentration of ammonia is one of major problem in common carp (Cyprinus carpio) culture. It was caused by high stocking density and excessive feed. Molasses is biologicaly and economicaly considered as one of the safest way to increase the water quality. The aim of the research were to understand to effect of different molasses concentration which was applied in probiotic on the water quality, growth and survival rate of cammon carp. The research used five treatments namely (A) 0 g/Lmolasses, (B) 2,4 g/Lmolasses, (C) 4,8 g/Lmolasses, (D) 7,2g/Lmolasses, (E) 9,6 g/L molasses. Data of temperature, pH, DO and daily growth rate were analyzed by using Kruskal-Wallis nonparametric test, while the ammonia and survival rate were analyzed descriptively. The results showed that (1) molasses treatment on the application of probiotics provides influence on the afternoon temperature, pH and dissolved oxygen (DO) in the morning and afternoon, concentration of ammonia and survival rate (2) based on the stability of temperature, pH and DO in the morning and the afternoon, concentration of ammonia, growth and survival rate of carp higher than the other. The concentration of 2,4 g/L molasses was considered as the best treatment
