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    Wyświetlanie 1-7 z 7
    Tytuł:
    Effect of difference filter media on Recirculating Aquaculture System (RAS) on tilapia (Oreochromis niloticus) production performance
    Autorzy:
    Tanjung, Ricky Rahmat Maliki
    Zidni, Irfan
    Iskandar, Iskandar
    Junianto, Junianto
    Powiązania:
    https://bibliotekanauki.pl/articles/1075772.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Oreochromis niloticus
    filter media
    production
    recirculating aquaculture system
    tilapia
    Opis:
    This research aims to determine the composition of the best filter media on tilapia (Oreochromis niloticus) production performance. The method used in this research is experimental methods use Completely Randomized Design (CRD), which consist of four variables and three replications. The variable used is (A) without media filter (Control); (B) combination of cotton, bio ball and charcoal; (C) combination of cotton bioring and charcoal; (D) combination of cotton, Japanese matt and charcoal. The test fish used 180 tilapia fish with 7-9 cm length size. Tanks that used measured 60 cm x 30 cm x 36 cm as many as 12 pieces. The density during the research was 15 tails per tank. Duration of maintenance is 40 days. The feeding level is given by 5% of fish body weight. Water quality parameters (temperature, dissolved oxygen, pH, ammonia, and nitrate) were observed every 10 days for 40 days. Other parameters are survival rate, absolute length and weight growth, specific growth rate and feed convertion ratio observed every 7 days for 40 days. The results showed that the best composition of filter media for tilapia production performance was combination of cotton, bioball, and charcoal. Tilapia production performance obtained a combination of cotton filter media, bioball, and charcoal with 100% survival rate, length growth 2.17 cm, weight growth of 9.91 g, and specific growth rate of 2.3% and feed conversion ratio of 1.88.
    Źródło:
    World Scientific News; 2019, 118; 194-208
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Productivity of Using Current Generating Circular Tanks for Tilapia Fingerling (Oreochromis niloticus (Linnaeus, 1758)) Production
    Autorzy:
    Suryadi, Ibnu Bangkit Bioshina
    Fadylah, M. Ihsan
    Iskandar, Iskandar
    Yustiati, Ayi
    Powiązania:
    https://bibliotekanauki.pl/articles/1076625.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Oreochromis niloticus
    round tanks
    tilapia
    venturi aeration
    water current
    Opis:
    This research conducted to determine the optimum water current models for growth performance and survival rate of tilapia fingerlings (O. niloticus) in circular tanks. The method used in this research is Completely Randomized Design (CRD), which consists of three treatments and four replications. The treatments are circular tanks without water current (control), circular tanks with 0.1 m s-1 water current and circular tanks that combine 0.1 m s-1 water current with venturi aeration. Tilapia fingerlings were kept in circular tanks with 30 cm diameter and 37 cm of height, with water level of 30 cm. 50 fingerlings with size of 2-3 cm were reared in every circular tank. The feed is given 3 times daily with a feeding rate of 5% from biomass. Absolute growth rate, specific growth rate, survival rate, feed conversion ratio and feed efficiency were observed every ten days, while water quality was assessed weekly. After 42 days of rearing, the results showed that the 0,1 m s-1 water current combined with venturi aeration had the highest dissolved oxygen level (6.5-7.3 mg L-1), the lowest ammonia levels (0.15-0.20 mg L-1), 92% survival rate, 1.17 g absolute growth rate, 3.65% specific growth rate, 1.3 feed convertion ratio and 77.8% feed efficiency.
    Źródło:
    World News of Natural Sciences; 2019, 27; 85-95
    2543-5426
    Pojawia się w:
    World News of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Using Fermented Coconut Testa by Rhizopus oryzae Went & H.C. Prinsen Geerligs, (1895) on the Growth of Red Tilapia Seeds (Oreochromis niloticus Linnaeus, 1758)
    Autorzy:
    Oktapiani, Rida
    Haetami, Kiki
    Liviawaty, Evi
    Lili, Walim
    Powiązania:
    https://bibliotekanauki.pl/articles/1839381.pdf
    Data publikacji:
    2021
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Red tilapia
    coconut testa
    fermentation
    Rhizopus oryzae
    growth
    Oreochromis niloticus
    Opis:
    This study aims to determine the effect of the level of use of fermented coconut testa from Rhizopus oryzae for four days on optimal artificial feed on the growth of red tilapia fry. The method used in this research is an experimental method using a completely randomized design (CRD), which consists of five treatments and three replications. The treatments used were differences in the level of use of fermented coconut testa in feed (A) 0%, (B) 5%, (C) 10%, (D) 15%, and (E) 20%. Maintenance was carried out for 42 days. Parameters observed were nutritional value of fermented products, daily growth rate, feed conversion ratio, and water quality (temperature, pH and dissolved oxygen). Daily growth rate, feed conversion ratio, and water quality were observed every 7 days. Daily growth rate and feed conversion ratio data were analyzed using the Analysis of Variance (ANOVA) with a 95% confidence level, followed by Duncan's multiple spacing test, while the nutritional content of fermented products and water quality were analyzed descriptively. The results showed that the use of coconut testa fermented by R. oryzae for four days as much as 15% in the feed formulation gave the highest daily growth rate of red tilapia fish, namely 1.29% and feed conversion ratio of 2.36.
    Źródło:
    World Scientific News; 2021, 162; 29-42
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Utilization of Fermented Mangrove Propagules (Rhizophora mucronata) as Feeding Material for Nile Tilapia (Oreochromis niloticus)
    Autorzy:
    Andriani, Yuli
    Nurfalah, Firdausi
    Yustiati, Ayi
    Iskandar, Iskandar
    Zidni, Irfan
    Powiązania:
    https://bibliotekanauki.pl/articles/1162438.pdf
    Data publikacji:
    2018
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Feeding Efficiency
    Fermentation
    Growth
    Mangrove Propagulee
    Oreochromis niloticus
    Rhizophora mucronata
    Tilapia
    Opis:
    The research was carried out at the Laboratory of Aquaculture, Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran for culture and observation of fish and at the Poultry Nutrition Laboratory, Faculty of Animal Husbandry, Padjadjaran University on the fermentation process and the manufacture of test feeding. The purpose of this study was to determine the optimal percentage of Aspergillus niger fermented mangrove propagules meal in artificial feeding on the growth rate of nile tilapia. Tilapia fry used were 5-7 cm in size with an average weight of 4.97 ± 0.2 g. The study used a Completely Random Design (CRD) with five treatments and three repetition. Feeding is formulated on the percentage of fermented mangrove propagules meal use, that is 0; 2,5; 5; 7.5; and 10%. The main parameters observed were nutritional quality of fermented products, daily growth rate, feeding efficiency and survival. The data obtained were analyzed using F Test and continued with Duncan's Test if there were differences between treatments. The results showed that the addition of mangrove propagules fermented about 10% level. It gives results that there is no difference between the daily growth rate, feeding efficiency and survival whic is the same as those in tilapia. This is shows that mangrove propagulees can be used in fish feeding without causing negative effects on the growth of nile tilapia fry.
    Źródło:
    World Scientific News; 2018, 111; 74-86
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effectivity of Solution Mangosteen Rind (Garciana mangostana) as Medicine for Black Tilapia Juvenile (Oreochromis niloticus Bleeker) when Infected by Aeromonas hydrophila
    Autorzy:
    Lili, Walim
    Gumilar, Resvi
    Nurhayati, Atikah
    Rosidah, Rosidah
    Powiązania:
    https://bibliotekanauki.pl/articles/1062740.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Aeromonas hydrophila
    Garciana mangostana
    Oreochromis niloticus
    Solution mangosteen rind
    black tilapia
    medicine
    Opis:
    Many tropical plants have interesting biological activities with potential therapeutic applications. Garcinia mangostana Linn. (GML) belongs to the family of Guttiferae and is named “the queen of fruits”. It is cultivated in the tropical rainforest of some Southeast Asian nations like Indonesia, Malaysia, Vietnam, Philippines, and Thailand. This research aims to determine the concentration of solution mangosteen rind (Garciana mangostana) which is the most effective to healing of black tilapia juvenile (Oreochromis niloticus Bleeker) when infected by A. hydrophila bacteria to produce the highest survival of black tilapia juvenile. This research used experimental method and experimental design by including a complete randomized design (CRD) with five treatments and three replications. The used treatment was soaking black tilapia juvenile for 24 hours in mangosteen rind. The sample infected by A. hydrophila bacteria as much as 0.1 mL/fish at concentration of 108 cfu/mL with intramuscular injection method was used. The concentrations of mangosteen rind solution were 0, 500, 600, 700, and 800 ppm. The parameters observed were clinical symtoms, fish response to feed, fish response to shock, recovery process, and water quality. Data of the clinical symtoms, response fish to feed, response fish to shock, recovery process and water quality were analysed descriptively, while the survival rate data of black tilapia juvenile were analysed using F test at 95% confidence level and continued with Duncan test. The results showed, the use of mangosteen rind solution with 600 ppm concentration was effective to treat tilapia juvenile which infected by A. hydrophila bacteria resulted in the fastest recovery on the third day and the highest survival rate of 91.76.
    Źródło:
    World Scientific News; 2019, 133; 56-70
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Stocking Density on Water Quality of Tilapia (Oreochromis niloticus Linnaeus, 1758) in Round Container with Current and Venturi Aeration System
    Autorzy:
    Nariswari, Shalsabilla
    Yustiati, Ayi
    Rostini, Iis
    Suryadi, Ibnu Bangkit Bioshina
    Powiązania:
    https://bibliotekanauki.pl/articles/1030997.pdf
    Data publikacji:
    2020
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Current
    Microbubble
    Oreochromis niloticus
    Round Container
    Stocking Density
    Tilapia
    Venturi Aeration
    Water Quality
    Opis:
    This research aims to determine the optimal stocking density for the water quality of tilapia in a round container with current and venturi aeration system. Research was conducted at the Aquaculture Laboratory Building 4th, Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran. The research method was carried out experimentally using the Completely Randomized Design (CRD) method consisting of three treatments with five replications, namely stocking density treatment with 15 fish, 22 fish, 30 fish using 15 L water in a container. The fish used are 3-5 cm of tilapia fry. Fish were treated for 40 days. The feed given is 5% biomass which is updated every 10 days. The parameters observed were water quality consist of temperature, dissolved oxygen (DO), pH, ammonia levels which were measured every 10 days. Based on the research results, it was concluded that the best treatment was stocking density of 15 fish/15 L in a round container with current and venturi aeration system with an average temperature of 26 °C, dissolved oxygen of 5.62 mg/l, pH of 7.09, ammonia levels 0.007 mg/l.
    Źródło:
    World Scientific News; 2020, 145; 397-408
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Bioaccumulation of Heavy Metals in Mackerel and Red Hybrid Tilapia Collected From
    Autorzy:
    Dabwan, Ahmed H. A.
    Saluddin, Ummu Asma’ Hafifah Bt. Mohmad
    Isa, Nursuhaili Bt. Mohd
    Abdullah, Abdul Hadi
    Mohamed, Amri Bin Hj.
    Ahmad, Anuar Bin
    Powiązania:
    https://bibliotekanauki.pl/articles/27314829.pdf
    Data publikacji:
    2022
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    heavy metals
    biomonitoring
    oreochromis niloticus
    Rastrelliger kanagurta
    Oreochromis niloticus
    metale ciężkie
    ekosystem morski
    makrela indyjska
    tilapia
    Opis:
    The major goal of this study is to determine the bioaccumulation of heavy metals in the tissues and bones of Red Hybrid Tilapia (Oreochromis niloticus) and Mackerel (Rastrelliger kanagurta) taken from two distinct sites in Terengganu state, Malaysia, namely Kijal and Paka. Zinc (Zn), copper (Cu), nickel (Ni), and lead (Pb)were the metals examined. Soil analysis also was carried out for the same elements. The tissues and bones of the fishes were separated before further analysis was made. Drying process technique was used to determine the moisture content for all samples at 80°C for 24 hours. Water content ranged between 70 & 77%. Triplicate samples were evaluated by using Atomic Absorption Spectrophotometer (AAS) to find out heavy metals concentration. Oven and Teflon beakers were used to fully digest all solid samples at 120oC for 3 hours. Highest readings of Zn, Ni and Pb were found in the fish bone for the samples collected from both mentioned locations. However, different pattern was noticed for Cu where higher values were found in the tissues for the same samples. Values of Pb in the tissues were higher than the acceptable value in edible fish by Food and Agriculture Organization (FAO); 1 ppm and Malaysian Food Act (MFR) & World Health Organization (WHO); 2 ppm, whereas values of Cu, Zn were in the acceptable range set by the same organizations. No values recommended for Ni by MFR. In general heavy metals in the bones and tissues from both locations can be sorted in descending order as follows; Pb>Zn>Cu>Ni. Soil samples collected from both locations showed different pattern where high concentration was found for Zn followed by Pb then Cu and Ni. Moreover analysis for soil samples collected from Paka River showed higher content for all elements compared to Kijal. More investigation is needed to clarify whether this contamination is solely from industry or due to geology of the area.
    Źródło:
    Civil and Environmental Engineering Reports; 2022, 32, 4; 270--281
    2080-5187
    2450-8594
    Pojawia się w:
    Civil and Environmental Engineering Reports
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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