RINGKASAN
DWI SAPUTRO. Pengaruh Pemberian Ampas Kelapa yang Difermentasi Rhizopus oryzae dalam Pakan Terhadap Pertumbuhan Ikan Bawal Bintang (Trachinotus blochii). Dibimbing oleh TRI YULIANTO dan TENGKU SAID RAZA’I.
Penelitian ini bertujuan untuk mengetahui dampak pakan menggunakan penambahan fermentasi Rhizopus oryzae pada ampas kelapa terhadap pertumbuhan berat dan panjang ikan bawal bintang (Trachinotus blochii) dan untuk mengetahui penambahan fermentasi Rhizopus oryzae di ampas kelapa yg optimal buat menaikkan pertumbuhan berat dan panjang ikan bawal bintang (Trachinotus blochii). Penelitian ini dilaksanakan selama 60 hari pada bulan Juli 2022 di Desa Tembeling Tanjung, Kecamatan Teluk Bintan, Kabupaten Bintan, Provinsi Kepulauan Riau. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL), terdiri dari 4 perlakuan dengan 3 ulangan. Perlakuan A : 100% pakan komersial, Perlakuan B : 10% Ampas kelapa fermentasi dan 90% pakan komersial, Perlakuan C : 20% Ampas kelapa fermentasi dan 80% pakan komersial, Perlakuan D : 30%
Ampas kelapa fermentasi dan 70% pakan komersial. Hasil analisis menunjukkan bahwa parameter pertumbuhan bobot dan laju pertumbuhan harian memberikan pengaruh nyata terhadap pertumbuhan ikan bawal bintang. Hasil terbaik pada perlakuan A (100% pakan komersial). Nilai efisiensi pakan 28,99%, Rasio Konversi 2,85%, petumbuhan bobot mutlak 25,09 gr dan laju pertumbuhan harian 0,42gr.
Kata kunci: Ikan Bawal Bintang, Fermentasi, Ragi, Ampas Kelapa.
SUMMARY
DWI SAPUTRO. The Effect of Rhizopus oryzae Fermented Coconut Dregs in Feed on the Growth of Silver Pompano (Trachinotus blochii). Supervised by TRI YULIANTO and TENGKU SAID RAZA’I.
This study aims to determine the effect of feed with the addition of fermented Rhizopus oryzae in coconut pulp on the growth of weight and length of star pomfret (Trachinotus blochii) and to determine the optimal addition of fermented Rhizopus oryzae to coconut pulp to increase growth in weight and length of pomfret (Trachinotus blochii). This research was conducted for 60 days in July 2022 in Tembeling Tanjung Village, Teluk Bintan District, Bintan Regency, Riau Archipelago Province. This study used a completely randomized design (CRD), consisting of 4 treatments with 3 replications. Treatment A: 10% fermented coconut dregs and 90% commercial feed, treatment B: 20% fermented coconut dregs and 80% commercial feed, treatment C: 30% fermented coconut dregs and 70%
commercial feed, treatment D: 100% commercial feed. The results of the analysis showed that the weight growth parameters and daily growth rate had a significant effect on the growth of the pomfret. Best results in treatment A (100% commercial feed). The feed efficiency value was 28.99%, the conversion ratio was 2.85%, the absolute weight gain was 25.09 grams and the daily growth rate was 0.42 grams.
Keywords: Silver Pompano (Trachinotus blochii), Fermentation, Yeast, Coconut Dregs.
