40 research outputs found

    Growth and Survival Rate of Abalone (Haliotis Squamata) on Different Stocking Density

    Full text link
    Information about stocking densities that are ideal for the cultivation for abalone isstill very limited. This aim of the study is to determine the stocking density both in themaintenance of abalone. The benefits of this research is to provide information about thestocking density is good for the growth of the abalone and can be reference in the cultivationand further research. This study was conducted over 60 days from February to April 2014,which took place in Mariculture Center in Batam, Riau Islands Province. The method used isan experimental method with a completely randomized design (RAL) with three levels of thetreatment. Treatment 1 (stocking density of 80 animals), treatment 2 (stocking density of 90fish), Treatment 3 (stocking density of 100 fish) . Each treatment had 3 replications.Extensive research treatment of each area ith size of 50 x 35 cm2 in volume. Stocked abaloneseed size from 1.9 to 3 cm and weight from 2.04 to 2.12 g, aged 3-4 months and totaling 810tails. The best results were obtained in treatment 1 with length growth of the average size of2.29 cm to 2.98 cm and the growth of an average weight of 2.07 grams to 3.94 grams

    Pemeliharaan Benih Ikan Baung (Mystus Nemurus C.V) dengan Sistem Bioflok pada Sistem Resirkulasi Akuaponik

    Full text link
    This research was conducted from July to August 2014, for 35 days in Breeding Laboratory Unit of Fisheries Faculty and Marine Sciences, University of Riau Pekanbaru. The aims of the research was to investigate rearing of river catfish (Mystus nemurus C.V) with biofloc system in aquaponic recirculation system. The method used was experiment with 3 treatments and 3 replications. The treatments were P1 = 20 ml/L of probiotic bacteria inoculant, P2 = 25 ml/L of probiotic bacterial inoculant, and P3 = 30 ml/L of probiotic bacteria inoculant. The best treatment was achieved by P3 with absolute growth weights (3.79 g), absolute growth length (6.10 cm), daily growth rate (6.54%) and survival rate 90%. The best water quality parameters recorded during in the research period was achieved by P3 ammonia (NH3) 0.33-0.72 mg/L, nitrit (NO2) 0.07-0.55 mg/L, nitrat (NO3) 0.13-1.23 mg/L, temperature 27-30 0C, pH 5-6, dissolved oxygen (DO) 3-4.5 mg/L and (CO2) 7.99-11.98 mg/L

    Pengaruh Penggunaan Media Presentasi Interaktif Terhadap Hasil Belajar Fisika Peserta Didik Kelas XI IPA SMA Cokroaminoto Makassar Tahun Ajaran 2015/2016

    Full text link
    Jenis penelitian ini adalah penelitian eksperimen semu (Quasi Experimental) yang bertujuan untuk: (1) mengetahui hasil belajar fisika kelompok yang diajar menggunakan media presentasi interaktif (2) mengetahui hasil belajar fisika peserta didik kelompok yang diajar secara konvensional (3) mengetahui perbedaan hasil belajar fisika kelompok yang diajar menggunakan media presentasi interaktif dengan kelompok yang diajar secara konvesional. Desain penelitian ini adalah nonequivalent control group design yang melibatkan dua variabel terdiri dari variabel bebas yaitu media presentasi interaktif dan veriabel terikat yaitu hasil belajar. Instrumen penelitian yang digunakan adalah tes hasil belajar fisika sebanyak 18 item yang berbentuk pilihan ganda pada pokok bahasan “USAha dan energi”. Subjek penelitian ini adalah siswa kelas XI IPA SMA Cokroaminoto Makassar Tahun Ajaran 2015/2016 yang terdiri dari dua kelas yakni kelas kontrol dan kelas eksperimen. Hasil penelitian menunjukkan rata-rata skor hasil belajar fisika peserta didik kelas eksperimen 10,45 dengan standar deviasi 3,54 dan varians 12,545 sedangkan rata-rata skor hasil belajar fisika peserta didik kelas kontrol 8,5 dengan standar deviasi 2,69 dan varians 7,24. Berdasarkan uji homogenitas hasil belajar fisika adalah Fhitung = 1,73 < Ftabel = 2,09 dengan uji hipotesis yakni thitung = 2,22 dan ttabel = 2,018 menunjukkan adanya pengaruh media presentasi interaktif terhadap hasil belajar fisika peserta didik.Kata kunci: Hasil belajar, media presentasi interaktifThis research is a quasi experimental design that aims to (1) determine of Physics learning outcomes of group who taught using peentage of interactive media. (2) determine of Physics learning outcomes of group who taught using conventoinal media. (3) determine difference of Physics learning outcomes of group taugh using presentage of interactive media than group by taugh conventoinal media. This research design is none equivalent control group design by use two variabels are independent variabel is interactive presentatoin media and dependent variabel is result learning. Researc instrument using achievement test consisting 18 multple choice items basic learning “work and energy”. The subjects of this research are sciece class students of XI SMA Cokroaminito Makassar academic year 2015/2016 wich twice class are control class and experiment class. The result of research to point average score physics learning outcomes students experiment class is 10,45 which standard deviation 3,45 and varians 12,545 than average score of result learning of control class 8,5 wich stnadard deviation 2,69 and varians 7, 24. Based on homogenitas test phisics result learning is Fhitung =1,73 < Ftabel = 2,09 then hpotesis test is thitung = 2,22 and ttabel = 2,018 to point the presentage of interactive media is have realion to students result learning.Key Words: Results Learning, presentage of interactive medi

    The Influence of Additional Red Spinach Flour (Amaranthus Hypocondriacus) in Made Feed of Color Quality to Goldfish.

    Full text link
    The study was conducted from 1st of April to 10th May 2017. The research to do cultivation technology faculty of fisheries and marine University of Riau, Pekanbaru. The aim of the research is to know about the dose of additional red spinach flour in made feed that aims to enhance color quality to goldfish. This research used experimental method completely randomized design, with 5 level of treatments and 3 replications. The addition were given by P0 pelet FF-999 (control), P1(red spinach flour 2%), P2(red spinach flour 3%), P3 (red spinach flour 4%), P4 (red spinach flour 5%). Maintenance container that used of 60x40x40 cm, aquarium size with water volume of 60 liter with recirculation system. The used of fish as many as 15 tails/basin. The given of food to fish of 3 replication with ad satiation. The measurement of fish color with the growth of sampling done at the beginning, middle, and at the end. Whereas to success of life calculated in begin and ending researd. Parameter of water quality the measured temperature pH, DO, ammonia of measured begin and at the end. The result research showed that the additional red spinach flour in the feed the given influence to the color of change of godfish with 9,81 color gradiation. 2,51 cm absolute length accretion, 6,29 gram absolute weight accretion, the best of succer of life to treatment P2 and P4 of 100%

    Increasing Calcium Oxide (Cao) to Accelerate Moulting and Survival Rate Vannamei Shrimp (Litopenaeus Vannamei))

    Full text link
    The research about the increasing Calcium Oxide (CaO) to accelerate moulting and survival rate vannamei shrimp (Litopenaeus vannamei) was conducted from Agustus until September 2015 at Balai Perikanan Budidaya Air Payau, Instalasi Pembenihan Udang (IPU) Gelung, Situbondo Provinsi Jawa Timur. The purpose of this research was to investigate optimum doses calcium oxide to accelerate moulting and the survival rate vannamei shrimp (Litopenaeus vannamei). Vannamei shrimp with size PL25 were used in the research. The stoples that used 25L and filled with water 20L. The treatment given is giving of calcium oxide with different doses namely dose of 25mg, 50mg, 75mg, 100mg and added with the control treatment. This research uses Complete Randomized Design (CRD) with 1 factor 3 levels and 3 replication. Calcium Oxide (CaO) with doses of 75mg can produce intensity of moulting 43 times and survival rate vannamei shrimp (Litopenaeus vannamei) of 85%

    The Maintenance Of White Shrimp (Litopenaeus Vannamei) With Different Percentage Of Feed

    Full text link
    The research was conducted on 18th March to 23rd April 2015 atBrackishwater Aquaculture Development Center Jepara, Central of Java. The aimof this research is to determine the optimum percentage of feed in shrimpsenlargement activity. The Completely Randomized Design was applied in thisresearch with one factor and three replication. Treatment consist of feed pellets; P1(15% from biomass/day), P2 (25% from biomass/day), P3 (35% frombiomass/day), P4 (45% from biomass/day) and P5 (55% from biomass/day). Awhite shrimp (Litopenaeus vannamei) in length of 1,62 cm and body weight of0,05 g were reared in bucket (15 unit) with 120L capacity and density of 100tail/bucket. During experiment, the shrimps were fed on pellets four times daily.The results showed that the different percentage of feed gave effect for whiteshrimp growth. The best percentage of feed is 25% from biomass/day (P2) wasoptimum and gave the total weight with 0,934 g, total length 4,042 cm, specificgrowth rate 9,76%, and survival rate with 95,33%
    corecore