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All Journal Journal of Community Service (Abdisci) Jurnal Ilmu Pertanian dan Perikanan (PENARIK)
Anggela Opsi Yantri Gulo
Universitas Nias
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Other

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Pemanfaatan Limbah Ikan Sebagai Bahan Baku Pakan Buatan Dan Pengaruhnya Terhadap Performa Pertumbuhan Ikan Patin (Pangasius sp.) Anggela Opsi Yantri Gulo
Jurnal Ilmu Pertanian dan Perikanan Vol. 3 No. 2 (2026): PENARIK - Agustus
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/penarik.v3i2.1839

Abstract

The availability of quality feed at efficient production costs remains a major challenge in catfish (Pangasius sp.) aquaculture, given that feed accounts for the largest proportion of total aquaculture production costs. This study aimed to evaluate the physical characteristics of fish meal and formulated feed produced from processed fish waste, as well as to analyze the growth performance of catfish fed this formulated diet over a 10-week rearing period. Fish meal was produced from waste materials including heads, bones, skin, and residual flesh through washing, steaming, drying, grinding, and sieving stages, then formulated into pelleted feed together with rice bran, tofu dregs, tapioca flour, and vitamins. The results showed that the fish meal was grayish-brown in color, dense yet slightly coarse in texture, sufficiently dry, and suitable for use as a feed raw material. The resulting formulated feed was in pellet form, stable in water, and suitable for feeding to fish. Over the 10-week rearing period using this feed, the average body weight of catfish increased from 4.90 g to 8.90 g (absolute weight gain of 4.00 g; specific growth rate/SGR of 6.63% per week), total length increased from 9.20 cm to 11.09 cm, and standard length increased from 7.34 cm to 9.26 cm, with the SL/TL ratio remaining relatively stable in the range of 0.76-0.87. These results indicate that formulated feed derived from fish waste is able to adequately support catfish growth, while also offering an economical and sustainable alternative for small-scale fish farmers.
AQUATIC ETHICS SCHOOL: LEARNING TO PROTECT THE COASTAL ENVIRONMENT AT SMP NEGERI 6 BOZIHONA, IDANOGAWO DISTRICT Anggela Opsi Yantri Gulo; Andika Taufik; Asni Putri; Sani Waruwu; Cevin Winata Mendrofa; Destalenta Trisna Laoli; Darwis Triadi; Eduard Moris Lase
Jurnal Abdisci Vol 3 No 7 (2026): Vol 3 No 7 Tahun 2026
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/abdisci.v3i6.1243

Abstract

Background. Coastal areas are among the most productive ecosystems on Earth, yet they are also among the most exposed to human carelessness, particularly the steady inflow of plastic waste. Aims. This activity was carried out to build the knowledge, attitude, and moral responsibility of young people toward coastal sustainability through the "Aquatic Ethics School: Learning to Protect Coastal Environments" program, held on 18 June 2026 at SMP Negeri 6 Idanogawo, Nias Regency, North Sumatra. Methods. The program combined interactive talks, small-group discussion, an open Q&A session, and a closing commitment declaration written and read by the students themselves. Before the session, most participants could not clearly connect everyday habits with the condition of the coast near their school; afterward, they were able to explain microplastic formation, the logic behind Reduce-Reuse-Recycle, and where they personally fit into the problem. Conclusion. The enthusiasm shown during discussion, together with the willingness to sign the commitment declaration, suggests that ethics-based environmental education can move students from passive awareness toward a felt sense of responsibility for the coastline they live beside.
Co-Authors Andika Taufik Asni Putri Cevin Winata Mendrofa Darwis Triadi Destalenta Trisna Laoli Eduard Moris Lase Sani Waruwu