ANALISIS PENGARUH PERBEDAAN PERGANTIAN AIR STOK DENGAN TEKNOLOGI FINE BUBBLE TERHADAP PERFORMA PERTUMBUHAN IKAN HIAS GOLDEN (Puntius denisonii) PADA SISTEM AKUAKULTUR INTENSIF

Abstract

PUTRI NURUL HIDAYAH. Analisis Pengaruh Perbedaan Pergantian Air Stok dengan Teknologi Fine bubble Terhadap Performa Pertumbuhan Ikan Hias Golden (Puntius denisonii) pada Sistem Akuakultur Intensif. Dibimbing oleh WIDYA HASIAN SITUMEANG dan HENRY KASMANHADI SAPUTRA. Permintaan pasar ikan hias Golden (Puntius denisonii) yang semakin meningkatnya permintaan pasar ikan hias Golden (Puntius denisonii) memerlukan penerapan teknologi budidaya yang mampu meningkatkan efisiensi produksi dan menjaga kualitas air. Penelitian ini bertujuan menganalisis pengaruh perbedaan presentase pergantian air dengan teknologi fine bubble terhadap parameter kualitas air dan performa pertumbuhan ikan. Penelitian dilaksanakan selama 30 hari menggunakan Rancangan Acak Lengkap (RAL) dengan 3 (tiga) perlakuan, yaitu pergantian air 80% (K1) dan pergantian air 100% (K2) menggunakan fine bubble serta Kontrol dengan pergantian air (60%) tanpa menggunakan finebubble dengan masing-masing 3 (tiga) ulangan. Hasil penelitian menunjukkan bahwa pergantian air 100% (K2) menghasilkan kualitas air terbaik berdasarkan kadar oksigen terlarut (DO) dan alkalinitas, sedangkan pergantian air 80% (K1) menghasilkan tingkat kelangsungan hidup tertinggi yaitu 62,67% sehingga menjadi perlakuan paling optimal untuk produksi ikan. Secara statistik, perbedaan perlakuan pergantian air belum memberikan pengaruh nyata terhadap parameter pertumbuhan. Penerapan teknologi fine bubble pada pergantian air 80% (K1) berpotensi menjadi alternatif budidaya yang lebih efisien dan mendukung pengelolaan kualitas air pada sistem akuakultur intensif.

Kata kunci: fine bubble, kualitas air, pergantian air, pertumbuhan ikan

PUTRI NURUL HIDAYAH. Analysis of the Effect of Differences in Stock Water Replacement Using Fine bubble Technology on the Growth Performance of Golden Ornamental Fish (Puntius denisonii) in an Intensive Aquaculture System. Supervised by WIDYA HASIAN SITUMEANG and HENRY KASMANHADI SAPUTRA. The increasing market demand for Golden ornamental fish (Puntius denisonii) requires the application of aquaculture technologies capable of maintaining water quality and improving production efficiency. This study aims to analyze the effect of different water replacement rates using fine-bubble technology on water quality parameters and fish growth performance. The study was conducted over 30 days using a Completely Randomized Design (CRD) with 3 (three) treatments: 80% water exchange (K1) and 100% water exchange (K2) using fine-bubble technology, as well as a control group with 60% water exchange without fine-bubble technology, each with 3 (three) replicates. The results showed that 100% water exchange (K2) produced the best water quality based on dissolved oxygen (DO) levels and alkalinity, while 80% water exchange (K1) yielded the highest survival rate of 62.67%, making it the most optimal treatment for fish production. Statistically, the differences in water-change treatments did not have a significant effect on growth parameters. The application of fine-bubble technology in the 80% water-change treatment (K1) has the potential to become a more sustainable aquaculture alternative.

Keywords: fine bubble, fish growth, water changes, water quality