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Wyszukujesz frazę "round container" wg kryterium: Temat

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    Wyświetlanie 1-3 z 3
    Tytuł:
    Growth and sustainability performance of common carp seed (Cyprinus carpio Linnaeus, 1758) in round water flowing container
    Autorzy:
    Fauzi, Raden Ahmad Sholahudin
    Yustiati, Ayi
    Afrianto, Eddy
    Bangkit, Ibnu
    Powiązania:
    https://bibliotekanauki.pl/articles/1031861.pdf
    Data publikacji:
    2020
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Cyprinus carpio
    common carp
    round container
    venturi system
    water flow
    Opis:
    This study aims to determine the method of generating water flow inside a round container to increase the survival and growth of common carp fingerlings. The approach used in this research is an experimental method which applies a Completely Randomized Design (CRD) and consists of three and five replications. The treatments used are (A) No Water flow (control), (B) 0.1 m/s of water flow, (C) Water flow utilizing an additional venturi system. The test fish used were 450 majalaya common carp of size 3-5 cm. The containers used in this research are in the form of 15 gallons capacity with a diameter of 27 cm x 36 cm height x bottom diameter of 6 cm containing 19 liters of water. The density of common carp during the study was 30 carp per treatment container. The treatment period is 40 days. The food given is 5% of the bodyweight of fish. Water quality parameters (temperature, pH, dissolved oxygen, ammonia and nitrates) were observed every 10 days for 40 days. Other parameters are survival, daily growth rate, feed conversion ratio, and feed efficiency observed every 10 days for 40 days. The results showed that the use of water flows with the venturi system provides the best results - with a life growth rate of 1.5%, a feed conversion ratio of 3.18, feed efficiency of 31.73% and 75% survival.
    Źródło:
    World Scientific News; 2020, 141; 132-144
    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:
    The performance of Koi (Cyprinus carpio L.) in a circular current container tested against the Aeromonas hydrophila bacteria
    Autorzy:
    Suryadi, Ibnu Bangkit Bioshina
    Yusa, Regan Hanifelian
    Roffi, Grandiosa H.
    Zahidah, Zahidah
    Powiązania:
    https://bibliotekanauki.pl/articles/1193489.pdf
    Data publikacji:
    2021
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Aeromonas hydrophila
    Currents
    Cyprinus carpio
    Koi Fish Fingerlings
    Round Container
    System Immune
    Ventury System
    Opis:
    This research aims to determine the best currents speed and utilization of venturi to increasing survival, growth of Cyprinus carpio L. and reducing the infection rate of A. hydrophila bacteria. fingerlings. This research used an experimental method completely randomized design (CRD) with four treatments and four replications. The treatments used were the use of currents and venturi on the maintenance media with currents velocities of 0 m/s (A), 0.06 m/s (B), 0.1 m/s (C), and 0.14 m/s (D). Maintenance of the test fish for 40 days then followed by a challenge test for 14 days. Koi fish fingerlings tested to use A. hydrophila with a density of 108 CF /ml. The parameters observed included white blood cells, red blood cells, clinical symptoms, survival, daily growth rate, feed conversion ratio and water quality. The results showed that the use of currents and venturi with a flow rate of 0.14 m/s was effective in improving the performance of the koi fish's immune system and reducing the infection rate of A. hydrophila bacteria. During the flow administration during the 40 days maintenance period, the white blood cell count increased by 20.51% from a value of 9.19 × 104 cells/mm3 to 11.56 × 104 cells/mm3. Red blood cells increased by 40.65% from 1.60 × 106 cells/mm3 to 2.69 × 106 cells/mm3. Currents treatment with a speed of 0.14 m/s produced the highest survival rate after challenged with a value of 86.7%. Also this treatment was effective in preventing infection of A. hydrophila bacteria, it can be seen from the macroscopic clinical symptoms that appear less than the treatment current. The best results of daily growth rate and feed conversion ratio provided in currents treatment with a speed 0.1 m/s.
    Źródło:
    World Scientific News; 2021, 159; 1-19
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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