Penggantian Pakan Kadar Protein Tinggi Dengan Protein Rendah di Kolam Bioflok Lele Dumbo (Clarias gariepenus)

Azam Bachur Zaidy
Nayu Nurmalia ORCID
DOI: https://doi.org/10.33378/jppik.v17i1.399

Abstract

Kontribusi pakan terhadap biaya produksi sangat signifikan. Efisiensi biaya produksi dapat dilakukan dengan memanfaatkan bioflok sebagai pakan tambahan bagi ikan. Kandungan protein bioflok antara 25-30% dapat menggantikan sebagian protein yang berasal dari pakan komersial, tetapi informasinya masih sangat terbatas. Tujuan dari penelitian adalah mengetahui pengaruh pergantian pakan protein tinggi dengan protein rendah terhadap performa produksi dan kualitas air di kolam bioflok. Percobaan dengan rancangan acak lengkap tiga perlakuan yaitu penggantian pakan protein 32% ke protein 20% selama 7 hari pada kolam bioflok (B7), penggantian pakan protein 32% ke protein 20% selama 14 hari pada kolam bioflok (B14),dan pakan protein 32% selama 45 hari percobaan pada kolam nonbioflok (NB0). Hasil penelitian menunjukkan laju pertumbuhan spesifik, berat rata-rata, penambahan biomas, kelangsungan hidup dan konversi pakan kolam B7 dan B14 tidak berbeda nyata dibandingkan kolam NB0. Konsentrasi total amonia nitrogen (TAN) kolam B7 dan B14 tidak berbeda nyata dibandingkan kolam NB0. Biaya pakan lebih rendah 9.30% pada kolam B7 dan sebesar15.63% pada kolam B14 dibanding kolam NB0. Berdasarkan data penelitian, penggantian pakan protein tinggi dengan pakan protein rendah pada 14 hari sebelum panen dapat aplikasikan di kolam bioflok.

Keywords

molase; pertumbuhan ikan; volume bioflok

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