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All Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences OLDI (Oseanologi dan Limnologi di Indonesia)
Soffa, Fawzan Bhakti
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Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Environmental Science

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Color Alteration and Growth Performance of Spiny Lobster (Panulirus homarus) Juveniles Fed with Different Spirulina Concentration in Formulated Diet Soffa, Fawzan Bhakti; Pratama, Idham Sumarto; Ridwanudin, Asep; Fahmi, Varian
OLDI (Oseanologi dan Limnologi di Indonesia) Vol 4, No 2 (2019)
Publisher : Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1087.506 KB) | DOI: 10.14203/oldi.2019.v4i2.265

Abstract

Perubahan Warna dan Performa Pertumbuhan Juvenil Lobster Pasir (Panulirus homarus) yang diberi Pakan Buatan dengan Konsentrasi Spirulina Berbeda. Lobster pasir Panulirus homarus yang dibudidayakan rentan mengalami perubahan warna menjadi lebih pucat, sehingga dapat memengaruhi tingkat penerimaan konsumen terhadap produk tersebut di pasaran. Spirulina merupakan salah satu sumber karotenoid yang dibutuhkan lobster dalam proses pigmentasi, pertumbuhan dan kelangsungan hidup. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh penambahan Spirulina dalam pakan buatan terhadap perubahan warna tubuh dan performa pertumbuhan pada juvenile lobster pasir. Penelitian dilakukan di Laboratorium Budidaya Balai Bio Industri Laut-LIPI, Lombok Utara, Nusa Tenggara Barat. Perlakuan penambahan tepung Spirulina dengan konsentrasi berbeda (0%, 4% dan 8%) pada pakan buatan dilakukan sebanyak tiga ulangan, sedangkan perlakuan pakan rucah sebagai kontrol dilakukan tanpa ulangan. Setiap biota uji ditimbang dan difoto untuk dapat diamati tingkat pertumbuhannya serta perubahan warna yang terjadi di enam bagian tubuhnya menggunakan metode kuantifikasi warna HSV (hue, saturation, value).Setelah 97 hari pemeliharaan, warna seluruh bagian tubuh lobster mengalami perubahan menjadi lebih cerah dibandingkan warna awal juvenil. Jika dibandingkan dengan perlakuan ikan rucah, perlakuan pakan dengan tambahan Spirulina berhasil meningkatkan rasio kelulushidupan namun tidak memengaruhi laju pertumbuhan spesifik serta pertambahan berat tubuh biota uji. Meskipun penambahan Spirulina tidak memberikan pengaruh yang signifikan terhadap pigmentasi dan pertumbuhan, penggunaan pakan buatan dalam budidaya lobster pasir memiliki potensi yang besar dalam mencegah perubahan warna dan mengurangi tingkat kematian selama pemeliharaan.
Evaluating Fresh Earthworm as an Alternative Feed for the Spiny Lobster Panulirus homarus: Growth and Immune Responses Soffa, Fawzan Bhakti; Firdaus, Muhammad; Sinaga, Sunarti
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 31, No 1 (2026): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.31.1.87-98

Abstract

Limited feed availability is one of the major challenges in scaling up lobster aquaculture in Indonesia. At present, most lobster farmers rely heavily on trash fish, mainly sardines, which are nutritionally unbalanced, compete with human consumption, and are subject to seasonal fluctuations in price and availability. This study evaluated the use of earthworms as an alternative feed for juvenile scalloped spiny lobster (Panulirus homarus), assessing their nutritional value and effects on growth, survival, and immune responses. A 63-day feeding trial was conducted with four treatments and three replicates per treatment: 100% fish (Control), 70% fish + 30% earthworm (R7C3), 30% fish + 70% earthworm (R3C7), and 100% earthworm (C10). Hemolymph samples were collected to analyze total hemocyte count (THC) and phenoloxidase (PO) activity alongside growth measurements. Lobsters fed earthworm-based diets (C10, R3C7, and R7C3) exhibited significantly higher specific growth rates (0.98–1.73%/day) compared with the control (0.42–0.59%.day-1). Survival followed a similar pattern, with markedly higher rates in earthworm-fed groups (60–75%) than in the control (~25%). Immune parameters, including THC and PO activity, were significantly elevated in lobsters receiving earthworm diets. These findings demonstrate that earthworms are a promising, sustainable feed alternative that improves growth, survival, and immunity in P. homarus, reducing dependence on trash fish in lobster aquaculture.
Co-Authors Muhammad Firdaus Pratama, Idham Sumarto Ridwanudin, Asep Sinaga, Sunarti Varian Fahmi, Varian