Electronic Theses and Dissertation

Daphnia sp. Merupakan pakan alami yang sangat bagus pada masa pertumbuhan larva ikan Gabus (Channa striata) karena ukurannya yang kecil sesuai dengan bukaan mulut larva ikan dan mudah dicerna. Namun demikian masih diperlukan pengayaan Daphnia sp. Untuk melengkapi dan meningkatkan kandungan pada pakan alami seperti Daphnia sp. Penelitian ini bertujuan untuk menganalisis pengaruh pengayaan Daphnia sp. menggunakan tepung kunyit (Curcuma domestica) dengan waktu perendaman berbeda serta menentukan waktu rendaman terbaik bagi pertumbuhan dan kelangsungan hidup larva ikan gabus (Channa striata). Penelitian menggunakan Rancangan Acak Lengkap (RAL) dengan 5 perlakuan dan 4 ulangan yaitu kontrol (tanpa perendaman), perendaman selama 30, 35, 40, dan 45 menit. Parameter yang diamati meliputi pertumbuhan panjang mutlak, berat mutlak, laju pertumbuhan harian, Survival Rate (SR), dan kualitas. Data dianalisis menggunakan ANOVA dan Uji Duncan pada taraf 95%. Hasil penelitian menunjukkan bahwa perlakuan berpengaruh nyata (P0,05) terhadap berat mutlak, laju pertumbuhan harian, dan Survival Rate. Pertumbuhan panjang tertinggi diperoleh pada perendaman 45 menit (0,83±0,13 cm). Nilai kelangsungan hidup berkisar antara 68,33–75%. Kualitas air selama penelitian berada dalam kisaran optimal. Dengan demikian, perendaman Daphnia sp. selama 45 menit dengan tepung kunyit dapat meningkatkan pertumbuhan panjang larva ikan gabus tanpa menurunkan tingkat kelangsungan hidup.
Kata kunci: Daphnia sp., pengayaan, kunyit, larva ikan gabus, pakan alami, pertumbuhan.

Daphnia sp. is a really good natural feed during the larval growth stage of snakehead fish (Channa striata) because of its small size, which fits the larvae's mouth opening, and it's easy to digest. However, Daphnia sp. still needs to be enriched to complete and improve the content of natural feed like Daphnia sp. This study aims to analyze the effect of enriching Daphnia sp. using turmeric powder (Curcuma domestica) with different soaking times and to determine the best soaking time for the growth and survival of snakehead fish larvae (Channa striata). The study used a Completely Randomized Design (CRD) with 5 treatments and 4 replications, namely control (without soaking), soaking for 30, 35, 40, and 45 minutes. The observed parameters included absolute length growth, absolute weight, daily growth rate, Survival Rate (SR), and quality. The data were analyzed using ANOVA and Duncan's test at a 95% confidence level. The study results showed that the treatment had a significant effect (P0.05) on absolute weight, daily growth rate, and Survival Rate. The highest length growth was obtained with a 45-minute soaking (0.83±0.13 cm). Survival rates ranged from 68.33–75%. Water quality during the study remained within the optimal range. Therefore, soaking Daphnia sp. for 45 minutes with turmeric powder can boost the length growth of snakehead fish larvae without reducing survival rates. Keywords: Daphnia sp., enrichment, turmeric, snakehead fish larvae, natural feed, growth.