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All Journal Media Akuakultur Jurnal Medik Veteriner Zeta - Math Journal
Muhammad Marzuqi
Balai Besar Riset Perikanan Budidaya Laut, Gondol
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Mathematics Veterinary

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PERBEDAAN DOSIS PROBIOTIK Bacillus cereus DALAM PAKAN TERHADAP PERTUMBUHAN DAN AKTIVITAS ENZIMATIS JUVENIL IKAN KERAPU SUNU (Plectropomus leopardus) Marzuqi, Muhammad; Astuti, Ni Wayan Widya; Muzaki, Ahmad; Giri, Nyoman Adiasmara
Media Akuakultur Vol 17, No 1 (2022): (Juni, 2022)
Publisher : Politeknik Kelautan dan Perikanan Bone

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/ma.17.1.2022.33-41

Abstract

Kerapu sunu (Plectropomus leopardus) merupakan ikan laut ekonomis penting dan mempunyai prospek yang baik untuk budidaya. Sistem pencernaan ikan ini sangat dipengaruhi oleh pemanfaatan nutrien pakan yang digunakan. Pemanfaatan probiotik dapat mengaktifkan aktivitas enzim dalam pencernaan ikan. Tujuan penelitian untuk mendapatkan dosis probiotik Bacillus cereus yang tepat dalam pakan terhadap pertumbuhan dan aktivitas enzimatis juvenil ikan kerapu sunu. Penelitian dilakukan dengan 4 perlakuan dosis probiotik  dalam pakan, yaitu 0%, 0,5%, 1,0% dan 1,5%  dengan 4 kali ulangan. Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap (RAL). Pakan uji diformulasikan dengan kandungan protein 48,32-49,25% dan kandungan lemak 11,97-12,98%. Juvenil ikan kerapu sunu memiliki berat rata rata 5,7±0,3 g dan panjang awal rata-rata 7,3±0,3 cm, juvenil dipelihara dalam 16 bak polikarbonat bervolume 30 L dengan sistem air mengalir dan kepadatan 12 ekor/bak. Lama pemeliharaan selama 8 minggu. Ikan diberi pakan percobaan dengan frekuensi 2 kali sehari. Parameter yang diamati pada penelitian ini adalah pertumbuhan, laju pertumbuhan spesifik, kelangsungan hidup, efisiensi pakan, viabilitas bakteri dalam pakan dan aktivitas enzimatis pada saluran pencernaan. Hasil penelitian menunjukkan bahwa pemberian probiotik dalam pakan ikan kerapu sunu mampu meningkatkan pertumbuhan, efisiensi pakan, viabilitas bakteri probiotik, aktivitas enzim protease dan aktivitas enzim lipase pada usus.  Dosis pemberian probiotik 1,5% dalam pakan menunjukkan hasil lebih baik dibanding pakan lainnya (P<0,05).
Dietary Honeysuckle (Lonicera japonica) Extract Enhances Resistance to Infectious Myonecrosis Virus in Whiteleg Shrimp (Litopenaeus vannamei) Subaidah, Siti; Sumarwan, Joko; Marzuqi, Muhammad; Tridjoko, Tridjoko; Slamet, Bejo; Budi, Darmawan Setia; Pardede, Maria Agustina; Ulkhaq, Mohammad Faizal; Imlani, Ainulyakin; Loh, Jiun-Yan
Jurnal Medik Veteriner Vol. 8 No. 2 (2025): October
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jmv.vol8.iss2.2025.286-296

Abstract

This study aimed to investigate the immune response of whiteleg shrimp (Litopenaeus vannamei) to prevent infectious myonecrosis virus (IMNV) infection by incorporating Lonicera japonica water extract into artificial feed. A total of 180 whiteleg shrimp were used in four treatment groups (triplicate) receiving different doses of L. japonica extract in their feed, including treatment A (1% w/w), B (2% w/w), C (3% w/w), and D (without supplementation/control). The dietary treatments were applied twice daily for two weeks. On the 15th day, the shrimp were injected intramuscularly at the fifth abdominal segment with IMNV isolates (100 µL/shrimp) and observed for seven days post-infection (dpi). The parameters observed included hemolymph profile, survival rate, gross clinical signs, and water quality. IMNV infection was confirmed through both external clinical signs and PCR tests. The results showed that the addition of L. japonica water extract to the feed improved the survival rate and immune responses of whiteleg shrimp following the IMNV challenge test. In conclusion, dietary supplementation of L. japonica water extract at a concentration of 2% w/w in artificial feed could serve as a preventive agent against IMNV infection in whiteleg shrimp.
Prediksi Jumlah Pengunjung Semarang Zoo dengan Metode Fuzzy Time Series Marzuqi, Muhammad; Tafrikan, Mohammad; Maslihah, Siti
Zeta - Math Journal Vol 7 No 1 (2022): Mei
Publisher : Universitas Islam Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31102/zeta.2022.7.1.19-27

Abstract

Forecasting is a very important element in making decisions to deal with uncertain situations. The purpose of this study is to determine the results of forecasting using the fuzzy time series method so that it can be used as a basis for the Semarang Zoo management in planning development. This study uses secondary data from PT Taman Satwa Semarang. Data on the number of visitors to the Semarang Zoo from January 2017 to December 2021. The steps in this research are formulating problems, collecting data, analyzing data, and drawing conclusions. The calculation technique is carried out in two ways, namely manually and using the RStudio application. The result of this research is that the prediction results for January 2022 are 34,640 for manual calculations and 34,430 for calculations using the Rstudio application. While the MAPE test results obtained 14.15% for manual calculations and 15.082% for calculations using the Rstudio application. . Keywords: forecasting, fuzzy time series, number of visitors
Co-Authors Ahmad Muzaki Bejo Slamet DARMAWAN SETIA BUDI Imlani, Ainulyakin Joko Sumarwan, Joko Loh, Jiun-Yan Mohammad Faizal Ulkhaq Ni Wayan Widya Astuti Nyoman Adiasmara Giri Pardede, Maria Agustina Siti Maslihah Siti Subaidah Tafrikan, Mohammad Tridjoko Tridjoko