Application of Ascorbic Acid in Raw Fish Diets on Feed Efficiency and Growth Performance of Brown-Marbled Grouper (Epinephelus fuscoguttatus)
Sari
Pertumbuhan dan kelulushidupan adalah dua faktor utama yang harus diketahui dalam usaha budidaya ikan kerapu macan, terutama pada stadia juvenil. Penelitian ini bertujuan untuk mengamati pertumbuhan dan kelulushidupan juvenil ikan kerapu macan melalui penambahan dosis vitamin C yang berbeda ke pakan. 120 juvenil ditempatkan dalam 12 buah akuarium. Pakan yang digunakan adalah ikan rucah teri yang diperoleh dari tempat pendaratan ikan lokal. Tiga dosis vitamin C komersial yang berbeda yaitu 50 mg, 100 mg, dan 150 mg diaplikasikan dan dicampurkan ke pakan ikan rucah. Pakan komersial digunakan sebagai kontrol. Pengujian secara eksperimen dengan menggunakan desain RAL (Rancangan Acak Lengkap). Hasil penelitian menunjukkan bahwa ikan mengkonsumsi pakan yang diberikan secara lahap. Seluruh ikan hidup hingga akhir penelitian 32 hari (SR 100%). Pertumbuhan bervariasi dimana perlakuan B memiliki berat mutlak tertinggi yaitu 49,58 gram, diikuti perlakuan C (34,68 gram), A (29,79 gram) dan D (28,33 gram). FCR terbaik berturut-turut adalah perlakuan A (0,7), C (1,3), B (2,0), dan D (2,2). Kandungan nutrisi pakan dianalisis secara proksimat di laboratorium pangan dan peternakan Universitas Hasanuddin, dan parameter kualitas air diukur berkala. Secara umum, penambahan vitamin C ke dalam pakan ikan rucah yang diberikan ke juvenil ikan kerapu macan memberikan hasil yang signifikan dan menunjang pertumbuhan.
Kata kunci :Â Vitamin C, kerapu macan, pertumbuhan, pakan rucah
Teks Lengkap:
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