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All Journal Media Akuatika: Jurnal Ilmiah Jurusan Budidaya Perairan Jurnal Akuntansi Keuangan Dan Perpajakan
Yusnaini ., Yusnaini
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Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance

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Substitusi Tepung Ikan Dengan Tepung Maggot Dalam Pakan Terhadap Pertumbuhan Dan Kelangsungan Hidup Udang Vaname (Litopenaeus vannamei) Febrianti, Erica; Muskita, Wellem H.; Astuti, Oce; Kurnia, Agus; Hamzah, Muhaimin; ., Yusnaini
Jurnal Media Akuatika Vol 4, No 4: Oktober
Publisher : Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (878.068 KB) | DOI: 10.33772/jma.v4i4.10570

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh substitusi tepung ikan dan tepung maggot dalam pakan terhadap pertumbuhan dan kelangsungan hidup udang vaname L. vannamei. Tiga jenis pakan perlakuan dibuat dengan kandungan persentasi tepung ikan tongkol dan  tepung  maggot 25% TI Tongkol + 5% TM (pakan A),  20% TI Tongkol + 10% TM (pakan B) dan  15% TI Tongkol + 15% TM (pakan C), yang disusun menggunakan rancangan acak lengkap (RAL). Frekuensi pemberian pakan dilakukan sebanyak 2 kali sehari dengan dosis 5% dari bobot tubuh selama 45 hari pemeliharaan. Variabel yang diamati adalah pertumbuhan mutlak, laju pertumbuhan spesifik, efisiensi pakan, rasio konversi pakan, retensi protein, konsumsi pakan dan kelangsungan hidup.  Hasil dari penelitian ini adalah pertumbuhan mutlak, LPS dan efisiensi pakan udang vaname masing-masing sebesar 6,14-6,49 g, 2,47-2,66% dan 56,57-62,41%. Nilai rasio konversi pakan, retensi potein dan konversi pakan udang vaname yang diberi pakan uji berkisar antara 1,62-1,76, 41,04-69,17% dan 10,05-11,14 g, secara berturut-turut. Dan kelangsungan hidup  udang vaname selama penelitian adalah 100%. Analisis statistik menunjukkan bahwa pemberian pakan uji yang berbeda menunjukkan tidak ada perbedaan yang signifikan pada setiap nilai variabel pengamatan. Kata Kunci: Tepung Ikan Tongkol, Tepung Maggot, Pertumbuhan dan Kelangsungan Hidup Udang Vaname
Retail Investor' Cognitive Bias In Digital Investment Platforms: A Systematic Litrature Review Ralfsamy, Achmad Daffa; ., Yusnaini
Jurnal Akuntansi Keuangan Dan Perpajakan | E-ISSN : 3063-8208 Vol. 2 No. 3 (2026): Januari - Maret
Publisher : GLOBAL SCIENTS PUBLISHER

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Abstract

The digital transformation in the financial ecosystem has democratized investment access, yet simultaneously exposed retail investors to psychological vulnerabilities systematically induced by the architecture of digital investment platforms. This systematic literature review aims to critically investigate the escalation of cognitive biases, such as herding behavior and the illusion of control, triggered by hyper-connectivity and information asymmetry in contemporary trading applications. Grounded in the heuristics and biases theory, this study argues that digital platforms do not merely act as neutral facilitators, but actively serve as catalysts that exploit the bounded rationality of their users through cognitive overload and the absence of essential reflective pauses. The analysis of contemporary literature firmly rejects the classical assumption that conventional financial literacy education is adequate to mitigate these behavioral anomalies, considering that decision-making deviations operate at an instinctive and subconscious level. As a strategic implication and theoretical novelty, this research urges the deconstruction of the investor protection paradigm towards a behavior-centric transformation of choice architecture. Technology developers and regulators are required to integrate proactive digital nudging mechanisms and process accountability to transform applications from mere drivers of transaction velocity into systemic cognitive shields that effectively protect the financial stability of retail investors.
Co-Authors AGUS KURNIA Febrianti, Erica Muhaimin Hamzah Oce Astuti Ralfsamy, Achmad Daffa Wellem H. Muskita