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Wyszukujesz frazę "oreochromis niloticus" wg kryterium: Temat


Wyświetlanie 1-9 z 9
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
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:
The Preference Level of Nila Nugget - Oreochromis niloticus (Linnaeus, 1758) with Addition Texturized Soy Protein
Autorzy:
Yecika, Ruth
Pratama, Rusky Intan
Gumilar, Iwang
Rostini, Iis
Powiązania:
https://bibliotekanauki.pl/articles/1062795.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Nila
Nuggets
Oreochromis niloticus
TSP
Texturized Soy Protein
The preference level
Opis:
This research aims to determine the percentage of adding Texturized Soy Protein (TSP) to the quality of the preferred nila nuggets. This research was carried out at the Fisheries Product Processing Laboratory, Faculty of Fisheries and Marine Sciences, Food Chemistry Laboratory, Faculty of Agricultural Industrial Technology, Padjadjaran University and Food Chemistry Laboratory, Pasundan University in March to May 2019. The approach employed in this research was an experimental method with TSP addition treatment of 0 %, 20%, 30%, 40% and 50% TSP on Nila nuggets. Observations were made on the level of preference. These included the characteristics of appearance, aroma, taste, and texture, and were performed by semi-trained panelists. Other tests included Nila nugget folding and texture tests, moisture content, ash content, protein content and fat content. The results showed that panels preferred a treatment of the addition of 30% TSP. This, accordingly, had an average value of appearance of 9.0, aroma of 7.0, texture of 9.0 and taste of 9,0. Proximate test results showed increased water content of 0.04%, 0.25% ash content, 0.03% fat content and 0.55% protein content. Moreover, results indicated that the addition of 30% TSP can reduce the hardness value by 1933.99 g Force and add springiness value of 1.45 g Force.
Źródło:
World Scientific News; 2019, 133; 216-233
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Production of amylase by the intestinal microflora of cultured freshwater fishes (Oreochromis niloticus and Clarias gariepinus) rared localy in Calabar, south Nigeria
Autorzy:
Martin, M. F.
Okpo, E. A.
Andy, I. E.
Powiązania:
https://bibliotekanauki.pl/articles/1076792.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Amylase
Clarias gariepinus
Cultured Fresh Water Fishes
Intestinal Microflora
Oreochromis niloticus
Opis:
This study focused on determining the amylase-producing ability of the intestinal microbes in cultured fresh water fishes – Oreochromis niloticus and Clarias gariepinus. The bacterial isolates were identified on the basis of standard cultural, morphological and biochemical characteristics. The amylase production ability of the bacterial isolates was determined using starch agar. The mean viable count of the intestinal microbes ranged from 1.2 × 105 CFU/ml to 7.1 × 105 CFU/ml for tilapias (Oreochromis niloticus) and from 2.0 × 104 CFU/ml to 8.9 × 104 CFU/ml for catfishes (Clarias gariepinus). Staphylococcus and Micrococcus were predominant for both tilapias and catfishes. Out of 24 isolates, 21 were amylase producers. These included the following bacteria genera: Bacillus, Micrococcus, and Staphylococcus. These results strongly suggest that intestinal microbes play a pivotal role in the digestion of starch in cultured freshwater fishes and should be explored for industrial amylase production.
Źródło:
World News of Natural Sciences; 2019, 23; 13-23
2543-5426
Pojawia się w:
World News of Natural Sciences
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
    Wyświetlanie 1-9 z 9

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