Kinerja Pertumbuhan Ikan Bawal Air Tawar (Colossoma macropomum) yang Diberi Pakan Komersial Berbeda

Abstract

Pemberian pakan yang berkualitas menjadi salah satu upaya untuk meningkatkan produksi ikan karena pertumbuhan ikan dipengaruhi oleh pakan. Biaya pakan mencapai 60% dari total biaya produksi. Penelitian ini bertujuan membandingkan pengaruh empat produk pakan komersial berbeda terhadap kinerja pertumbuhan ikan bawal air tawar (Colossoma macropomum) yang dipelihara pada akuarium. Penelitian ini menggunakan empat produk pakan komersial dengan protein pakan yang cenderung sama, yaitu pakan komersial A (27,84%), pakan komersial B (27,11%), pakan komersial C (27,01%), pakan komersial D (28,48%). Ikan bawal yang digunakan memiliki bobot rata-rata 11,32±0,01 g ekor-1. Sebanyak 15 ekor ikan dipelihara dalam akuarium berukuran 90×40×45 cm selama 60 hari dengan pemberian pakan tiga kali sehari yaitu pada pukul 08.00, 13.00, dan 18.00 WIB secara ad satiation. Kinerja pertumbuhan ikan bawal yang diberi pakan komersial berbeda menunjukkan hasil berbeda nyata (p<0,05). Perlakuan D memiliki nilai biomassa akhir (Bt), average daily growth (ADG), laju pertumbuhan spesifik (LPS), rasio efisiensi protein (REP), dan retensi protein (RP) tertinggi di antara perlakuan lainnya. Perlakuan pakan D juga memiliki nilai Rasio Konversi Pakan (RKP) dan Feed Cost per Gain (FCG) terendah di antara perlakuan lainnya. Berdasarkan hasil penelitian ini dapat disimpulkan pemberian pakan dengan kadar protein yang relatif sama menunjukan kinerja pertumbuhan yang berbeda. Kinerja pertumbuhan ikan bawal air tawar (C. macropomum) terbaik diperoleh pada perlakuan pakan komersial D yang memiliki protein 28,48%.

Providing quality feed is one of the efforts to increase fish production because fish growth is influenced by feed. Feed costs account for 60% of the total production costs. This study aims to compare the effect of four different commercial feed products on the growth performance of tambaqui (Colossoma macropomum) cultured in aquariums. This study used four commercial feed products with feed protein that tended to be the same, namely commercial feed A (27,84%), commercial feed B (27,11%), commercial feed C (27,01%), commercial feed D (28,48%). The tambaqui used had an average weight of 11,32 ± 0,01 g-1. A total of 15 fish were kept in an aquarium measuring 90×40×45 cm for 60 days with feeding three times a day at 08.00, 13.00 and 18.00 WIB with ad satiation. The growth performance of tambaqui fed different commercial feeds showed significantly different results (p<0.05). The D treatment had the highest final biomass (Bt), average daily growth (ADG), specific growth rate (LPS), protein efficiency ratio (REP), and protein retention (RP) were the highest among other treatments. The D treatment also has the lowest Feed Conversion Ratio (RKP) and Feed Cost per Gain (FCG) value among the other treatments. Based on the results of this study it can be concluded that feeding with relatively the same protein content shows different growth performance. The growth performance of tambaqui (C. macropomum) was best obtained in the treatment of commercial D feed which had 28.48% protein.