Electronic Theses and Dissertation

Penelitian ini bertujuan untuk menganalisis pengaruh pengayaan Moina sp. menggunakan tepung ikan terhadap pertumbuhan dan kelangsungan hidup benih ikan nila (Oreochromis niloticus). Penelitian dilaksanakan di Laboratorium Histologi dan Kesehatan Ikan, Fakultas Kelautan dan Perikanan, Universitas Syiah Kuala, pada bulan Agustus–September 2025. Rancangan penelitian menggunakan Rancangan Acak Lengkap (RAL) dengan lima perlakuan dan empat ulangan, yaitu: A (tanpa pengayaan), B (6 g/L), C (8 g/L), D (10 g/L), dan E (12 g/L) tepung ikan. Parameter yang diamati meliputi pertumbuhan panjang mutlak, berat mutlak, laju pertumbuhan spesifik (SGR), tingkat kelangsungan hidup (SR), serta kualitas air. Hasil uji ANOVA menunjukkan bahwa pengayaan Moina sp. dengan tepung ikan berpengaruh nyata (P0,05) terhadap tingkat kelangsungan hidup. Perlakuan terbaik diperoleh pada konsentrasi 8 g/L dengan panjang mutlak 1,37 ± 0,457 cm, berat mutlak 1,32 ± 0,155 g, dan SGR 4,93 ± 0,219 % per hari, serta tingkat kelangsungan hidup 97,50 ± 5,00 %. Kondisi kualitas air selama penelitian berada dalam kisaran optimal (suhu 26,8-28°C; pH 7,5-7,8; DO 6,3 mg/L; salinitas 3 ppt) sesuai baku mutu SNI 6141:2009. Secara umum, pengayaan Moina sp. dengan tepung ikan meningkatkan kandungan nutrisi pakan alami sehingga mampu mendukung pertumbuhan benih ikan nila secara optimal. Dosis 8-10 g/L direkomendasikan sebagai konsentrasi pengayaan efektif untuk diaplikasikan dalam kegiatan pembenihan ikan nila skala laboratorium maupun komersial.

Kata kunci: Moina sp., tepung ikan, ikan nila, pertumbuhan, pengayaan pakan alami

This study aimed to analyze the effect of Moina sp. enrichment with fish meal on the growth and survival rate of Nile tilapia (Oreochromis niloticus) fry. The research was conducted at the Basic Histology and Fish Health Laboratory, Faculty of Marine and Fisheries, Syiah Kuala University, from August to September 2025. A Completely Randomized Design (CRD) was used, consisting of five treatments and four replications: A (control, no enrichment), B (6 g/L), C (8 g/L), D (10 g/L), and E (12 g/L) fish meal concentrations. Observed parameters included absolute length growth, absolute weight growth, specific growth rate (SGR), survival rate (SR), and water quality. ANOVA results showed that Moina sp. enrichment with fish meal had a significant effect (P0.05) on survival rate. The best results were obtained at a concentration of 8 g/L, yielding an average absolute length of 1.37 ± 0.457 cm, absolute weight of 1.32 ± 0.155 g, and SGR of 4.93 ± 0.219 % per day, with a survival rate of 97.50 ± 5.00 %. Water quality parameters remained within optimal ranges throughout the study (temperature 26.8-28°C; pH 7.5-7.8; DO 6.3 mg/L; salinity 3 ppt) according to SNI 6141:2009 standards. Overall, enriching Moina sp. with fish meal effectively increased its nutritional content, promoting better growth performance of Nile tilapia fry. The concentration range of 8-10 g/L is recommended as the most effective enrichment level for laboratory-scale and commercial hatchery applications. Keywords: Moina sp., fish meal, Nile tilapia, growth, live feed enrichment