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GROWTH IN NURSERY AND GROW-OUT PHASES OF WHITE SHRIMP AFTER IMMERSED IN RECOMBINANT GIANT GROUPER GROWTH HORMONE

Jurnal Ilmu dan Teknologi Kelautan Tropis Vol 7, No 2 (2015): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Jurnal Ilmu dan Teknologi Kelautan Tropis

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Abstract

The growth of white shrimp (Litopenaeus vannamei) can be improved by using recombinant fish growth hormone through immersion. This research was performed to evaluate the white shrimp growth at nursery and grow-out phases after recombinant giant grouper growth hormone (rElGH) immersion. Shrimp were immersed at different stages in one liter seawater containing 15 mg rElGH for two hours. At the nursery stage 30,000 PL4 that previously immersed at nauplius stage (treatment A1), at PL4 (treatment B1) and control without rElGH immersion (K1) were reared in fiber tanks containing 750 L seawater for 8 days. At the grow-out phase, 100 PL11 that have been immersed in rElGH solution at nauplius stage (treatment A2), at PL4 (B2), PL11 (C2) and control without rElGH immersion (K2) were separately reared in fiber tanks containing 750 L seawater for 55 days. Each treatment consisted of three replications. The results showed that at the end of the nursery phase, B1 treatment increased 19% of body length, 30.2% of the body weight and decreased the coefficient of length variation 34.9% compared to control K1 (P<0.05). At the grow-out phase, C2 treatment enhanced 38.2% of body weight and 32% of biomass compared with control K2 (P<0.05). Thus, hatchery is better to immerse PL4, and the farmer should used rElGH-immersed PL11 for growing-out.Keywords: growth promoting, nursery, grow out, Litopenaeus vannamei, rElGH

PERFORMA IKAN NILA (Oreochromis niloticus) HASIL SEX REVERSAL, GENETICALLY MALE DAN YY PADA FASE PENDEDERAN PERTAMA

Jurnal Riset Akuakultur Vol 4, No 1 (2009): (April 2009)
Publisher : Pusat Riset Perikanan, Badan Riset dan Sumber Daya Manusia Kelautan dan Perikanan

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Abstract

Penelitian ini dilakukan untuk mengkaji performa ikan nila hasil sex reversal (SRV), genetically male tilapia (GMT), dan YY pada fase pendederan pertama di akuarium. Benih ikan dipelihara selama 22 hari, dari umur 6 hari hingga 28 hari. Parameter yang diamati meliputi tingkat sintasan, persentase ikan jantan, laju pertumbuhan, dan biomassa. Hasil penelitian menunjukkan bahwa tingkat sintasan tidak berbeda (P>0,05) antar ketiga kelompok ikan dan kontrol (KN), berkisar antara 85,30%--86,20%. Persentase ikan jantan antara SRV (94,5% ± 1,32%) vs. GMT (93,8% ± 1,25%) dan GMT vs. YY (90,2% ± 1,83%) tidak berbeda (P>0,05), sedangkan antara SRV lebih tinggi daripada YY (P<0,05). Persentase ikan jantan pada ketiga kelompok ikan tersebut lebih tinggi (P<0,05) dibandingkan dengan KN (56,9% ± 3,62%). Pertumbuhan ikan YY dan GMT lebih cepat (P<0,05) dibandingkan dengan ikan SRV dan kontrol (KN). Bobot rata-rata ikan YY pada akhir penelitian mencapai 485 mg, ikan GMT 456 mg, ikan SRV 379 mg dan kontrol 342 mg. Produksi biomassa ikan YY, GMT, dan SRV masing-masing sebesar 41,3%; 32,9%; dan 10,3% lebih tinggi dibandingkan dengan KN. Dengan performa yang tinggi dan pertimbangan teknis di lapangan, benih GMT merupakan alternatif yang baik untuk dibudidayakan dalam rangka meningkatkan produksi ikan nila.The experiment was conducted to determine the performance of sex reversed (SRV), genetically male tilapia (GMT), and YY tilapia on first nursery phase in aquarium. Fry were reared for 22 days, from 6 to 28 days-old. Survival rate, percentage of male fish, growth rate and biomass were observed. The result of the study showed that survival rate among fish group and control were similar (P>0.05), ranged from 85.30%-86.20%. Percentage of male fish between SRV (94.5% ± 1.32%) versus GMT (93.8% ± 1.25%) and GMT versus YY (90.2% ± 1.83%) were also similar (P>0.05), while SRV is higher than YY (P<0.05). Percentage of male fish in the three fish groups was higher than that of control (56.9% ± 3.62%). Growth of YY fish and GMT were higher compared to SRV and control fish (KN). The mean weight of YY fish at the end of the experiment reached 476 mg, GMT fish 447 mg, SRV fish 379 mg and control 342 mg. Biomass of YY, GMT and SRV fish were respectively higher by 41.3%, 32.9%, and 10.3% compared to control. With high performance and technical consideration in farm, GMT fish can be a potential alternative to be cultured in fish farm in order to increase aquaculture production of nile tilapia.

Kompensasi, Independensi, Profesionalisme dan Etika Profesi Internal Auditor terhadap Kualitas Audit di Inspektorat Jenderal Kementerian Ketenagakerjaan

JRAP (Jurnal Riset Akuntansi dan Perpajakan) Vol 3, No 2 (2016): Desember 2016
Publisher : Magister Akuntansi Universitas Pancasila

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Abstract

A B S T R A C TThe purpose of this study was to determine and analyze the influence of competence, independence, professionalism and professional ethics of internal auditors to audit the quality of the Inspectorate General of Ministry of Manpower. The data used in this study are primary data obtained through questionnaires distributed to 60 auditors at the Inspectorate I until IV . Tests carried out by the analysis of data using SPSS regression. Based on the test results coefficient of determination, it is known that the competence, independence, professionalism and ethics of auditors affect audit quality by 84,6 %, while the remaining 15,4% is influenced by other factors. Meanwhile, regression analysis and hypothesis testing showed that the competence, independence, professionalism and ethics of the profession have a significant effect on audit quality either partially or simultaneously.A B S T R A KTujuan dari penelitian ini adalah untuk mengetahui dan menganalisis bagaimana pengaruh kompetensi, independensi, profesionalisme dan etika profesi internal auditor terhadap kualitas audit pada Inspektorat Jenderal Kementerian Ketenagakerjaan RI. Data yang digunakan dalam penelitian ini adalah data primer yang diperoleh melalui kuisioner yang disebarkan kepada 60 auditor pada Inspektorat I s.d. IV. Pengujian data dilakukan dengan analsis regresi menggunakan aplikasi SPSS. Berdasarkan hasil uji koefesien determinasi, diketahui bahwa kompetensi, independensi, profesionalisme dan etika auditor mempengaruhi kualitas audit sebesar 84,6%, sedangkan sisanya sebesar 15,4% dipengaruhi oleh faktor lain. Sementara itu, Hasil analisis regresi dan uji hipotesis menunjukkan bahwa kompetensi, independensi, profesionalisme dan etika profesi memiliki pengaruh yang signifikan terhadap kualitas audit baik secara parsial maupun secara simultan.