Pemanfaatan Tepung Cacing Tanah Eudrilus eugeniae dalam Pakan terhadap Performa Benih Ikan Koi Cyprinus rubrofuscus

Abstract

SAEFUL ANWAR. Pemanfaatan Tepung Cacing Tanah Eudrilus eugeniae dalam Pakan terhadap Performa Benih Ikan Koi Cyprinus rubrofuscus. Dibimbing oleh ANDRI ISKANDAR dan ANDRI HENDRIANA. Biaya pakan yang tinggi menjadi salah satu kendala utama dalam budidaya ikan koi. Tepung cacing tanah Eudrilus eugeniae berpotensi sebagai sumber protein alternatif dalam formulasi pakan buatan. Penelitian ini bertujuan mengevaluasi pemanfaatan tepung cacing tanah terhadap pertumbuhan dan sintasan benih ikan koi Cyprinus rubrofuscus. Penelitian menggunakan Rancangan Acak Lengkap (RAL) dengan tiga perlakuan, yaitu pakan komersial (K), substitusi tepung cacing tanah 30% (TC1), dan substitusi tepung cacing tanah 20% (TC2). Benih ikan berukuran awal 11,8 ± 0,4 cm dipelihara selama 35 hari. Hasil penelitian menunjukkan bahwa perlakuan TC1 menghasilkan pertumbuhan panjang mutlak tertinggi sebesar 3,80 ± 0,20 cm dan berbeda nyata dibandingkan kontrol (P<0,05). Pertumbuhan bobot mutlak, laju pertumbuhan bobot spesifik, tingkat kecerahan warna, dan sintasan tidak berbeda nyata antar perlakuan (P<0,05). Sintasan tertinggi diperoleh pada perlakuan TC1 sebesar 88 ± 2,89%. Hasil penelitian menunjukkan bahwa tepung cacing tanah Eudrilus eugeniae berpotensi dimanfaatkan sebagai sumber protein alternatif dalam formulasi pakan benih ikan koi.

The high cost of commercial feed remains a major challenge in koi fish culture. Eudrilus eugeniae earthworm meal has potential as an alternative protein source to improve feed efficiency while supporting fish growth. This study evaluated the utilization of Eudrilus eugeniae earthworm meal in artificial feed on the growth performance and survival of koi fish Cyprinus rubrofuscus juveniles. A Completely Randomized Design (CRD) was applied with three dietary treatments: commercial feed (K), feed containing 30% earthworm meal substitution (TC1), and feed containing 20% earthworm meal substitution (TC2). Fish with an initial length of 11.8 ± 0.4 cm were reared for 35 days. The TC1 treatment resulted in the highest absolute length growth (3.80 ± 0.20 cm), which was significantly higher than the control (P<0.05). Absolute weight gain, specific growth rate, color brightness, and survival did not differ significantly among treatments (P<0.05). The highest survival rate (88 ± 2.89%) was recorded in TC1. These results suggest that Eudrilus eugeniae earthworm meal can be used as an alternative protein source in formulated diets for koi fish juveniles