EFEKTIVITAS KOMBINASI PAKAN ALAMI CACING SUTERA (TUBIFEX SP) DAN TEPUNG CACING TANAH (LUMBRICUS RUBELUS) TERHADAP PERTUMBUHAN DAN KECERAHAN WARNA IKAN PLATY (XIPHOPHORUS MACULATUS)

Abstrak

Penelitian Penelitian ini dilaksanakan di Laboratorium Akuakultur Universitas Muhammadiyah Gorontalo. Penelitian bertujuan untuk mengevaluasi efektivitas kombinasi pakan alami cacing sutera (Tubifex sp.) dan tepung cacing tanah (Lumbricus rubellus) terhadap pertumbuhan, kelangsungan hidup, dan kecerahan warna ikan platy (Xiphophorus maculatus). Metode penelitian menggunakan Rancangan Acak Lengkap (RAL) dengan empat perlakuan dan tiga kali ulangan, yaitu perlakuan A (20% Tubifex sp. + 80% pakan komersial), B (20% Lumbricus rubellus + 80% pakan komersial), C (15% Tubifex sp. + 15% Lumbricus rubellus + 70% pakan komersial), dan D (100% pakan komersial sebagai kontrol). Parameter yang diamati meliputi pertumbuhan berat mutlak, panjang mutlak, tingkat kelangsungan hidup (SR), kecerahan warna berdasarkan Munsell Color Chart, serta kualitas air (suhu, pH, dan oksigen terlarut). Hasil penelitian menunjukkan bahwa perlakuan kombinasi (C) memberikan hasil terbaik dengan pertambahan berat 0,55 g, panjang 1,33 cm, skor warna 7,3, dan SR sebesar 96,7%. Analisis sidik ragam menunjukkan bahwa kombinasi pakan berpengaruh nyata terhadap pertumbuhan dan kecerahan warna ikan (p < 0,05). Selama penelitian, kualitas air berada pada kisaran optimal. Kombinasi pakan alami ini direkomendasikan sebagai pakan tambahan yang efektif dan berkelanjutan untuk ikan hias.

The The research was conducted at the Aquaculture Laboratory of Muhammadiyah University of Gorontalo. This study aimed to evaluate the effectiveness of combining natural feeds, namely silk worms (Tubifex sp.) and earthworm meal (Lumbricus rubellus), on growth performance, survival rate, and color brightness of platy fish (Xiphophorus maculatus). The experimental method used a Completely Randomized Design (CRD) with four treatments and three replications: A (20% Tubifex sp. + 80% commercial feed), B (20% Lumbricus rubellus + 80% commercial feed), C (15% Tubifex sp. + 15% Lumbricus rubellus + 70% commercial feed), and D (100% commercial feed as control). Parameters observed included absolute weight gain, absolute length gain, survival rate, color brightness based on the Munsell Color Chart, and water quality (temperature, pH, dissolved oxygen). The results showed that treatment C produced the best performance with weight gain of 0.55 g, length gain of 1.33 cm, color score of 7.3, and survival rate of 96.7%. Analysis of variance indicated that feed combination significantly affected growth and color brightness (p < 0.05). Water quality during the study remained within optimal ranges. The combination of Tubifex sp. and Lumbricus rubellus is recommended as an effective and sustainable supplementary feed for ornamental fish culture.