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All Journal Jurnal Penyuluhan Perikanan dan Kelautan Jurnal Penelitian Chanos Chanos
Kasmawijaya, Adang
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Control & Systems Engineering Economics, Econometrics & Finance Engineering Environmental Science Immunology & microbiology Mechanical Engineering

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DIETARY PROTEIN REQUIREMENT OF DAPHNIA MAGNA FOR THE IMPROVEMENT POPULATION AND NUTRITIONAL VALUE OF DAPHNIA Kasmawijaya, Adang; Hasan, Otie Dylan Soebhakti; Zaidy, Azam Bachur
Chanos Chanos Vol 21, No 1 (2023): CHANOS CHANOS
Publisher : Politeknik Kelautan dan Perikanan Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/chanos.v21i1.12726

Abstract

Daphnia magna is one of the live feeds used in aquaculture, but its availability is still limited. The population and nutritional quality of D. magna culture depend on the nutritional quality of feed where the feed source is commonly used from agricultural by-products. In contrast, pelleted feed as a source of nutrition in D. magna culture is still limited. Evaluation of commercial pelleted feeds with different protein levels and dietary protein requirements of D. magna is the focus of this research. Three treatments with different protein levels of feed with protein levels of 17.83% (P20), 32.35% (P30) and 41.98% (P40) and rice bran as control at a protein level of 8.2% (P10) with five replications for 28 days of rearing with using a completely randomized design. The average weekly population and the highest total biomass of D. magna were obtained from D. magna fed the P30 (Protein 32.35%) of 7,575 ind. tank-1. week-1 and total biomass of 290.26 g.m-3 with the feed conversion ratio of 3.85 ± 0.75 and protein efficiency ratio of 0.83 ± 0.14. The highest protein value of D. magna was obtained from D. magna fed the P30 of 3.02% ± 0.20 wet weight. The results showed that feed with a protein content of 32.35% (P30) showed the best results for cultivating D. magna. The estimated dietary protein requirement of feed for D. magna cultivation using the second polynomial regression analysis of feed protein - population and biomass is 38.8%.
Analisis Faktor-Faktor yang Mempengaruhi Produktivitas Ikan Nila di Kecamatan Padakembang Kabupaten Tasikmalaya Rahmawati, Risti Nur; Zaidy, Azam Bachur; Subagio, Asep Akhmad; Kasmawijaya, Adang; Nurmalia, Nayu
Jurnal Penyuluhan Perikanan dan Kelautan Vol 19, No 3 (2025)
Publisher : Program Studi Penyuluhan Perikanan Politeknik Ahli Usaha Perikanan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33378/jppik.v19i3.615

Abstract

Penelitian mengenai faktor-faktor padat tebar, luas kolam, kadar protein, dosis pakan dan pertumbuhan sangat mempengaruhi produktivitas ikan nila. Penelitian ini bertujuan untuk mengenali berbagai faktor-faktor yang mempengaruhi produktivitas ikan nila di Kabupaten Tasikmalaya. Metode yang digunakan dalam penelitian ini adalah metode survei dengan responden 30 orang pembudidaya ikan nila. Pengumpulan data menggunakan kuesioner dan wawancara langsung kepada responden. Analisis data menggunakan model analisis regresi dengan model analisis jalur. Hasil penelitian menunjukkan bahwa : (1) padat tebar , kadar protein , dan dosis pakan berpengaruh signifikan terhadap pertumbuhan ikan nila, sedangkan luas kolam tidak berpengaruh signifikan terhadap pertumbuhan ikan nila. (2) padat tebar dan kadar protein berpengaruh signifikan terhadap produktivitas ikan nila, sedangkan luas kolam , dosis pakan , dan pertumbuhan tidak signifikan terhadap produktivitas. (3) luas kolam melalui pertumbuhan berpengaruh signifikan terhadap produktivitas kolam. Hasil penelitian ini dapat dimanfaatkan oleh pembudidaya ikan untuk meningkatkan pertumbuhan ikan nila dan produktivitas kolam melalui peningkatan padat tebar, penggunaan pakan yang berkualitas dan dosis pakan yang optimum.
Co-Authors Nayu Nurmalia Otie Dylan Soebhakti Hasan Rahmawati, Risti Nur Subagio, Asep Akhmad Zaidy, Azam Bachur