KUALITAS AIR DAN PERTUMBUHAN GURAMI (Osphronemus goramy Lac., 1802), LELE (Clarias sp.) DAN NILA MERAH (Oreochromis sp.) PADA PEMELIHARAAN DI KOLAM DENGAN PERGANTIAN AIR TERBATAS

ARIEF SETIYAWAN, Prof. Dr. Ir. Rustadi, M.Sc. ; Susilo Budi Priyono, S.Pi., M.Si.

2017 | Skripsi | S1 BUDIDAYA PERIKANAN

Penelitian ini bertujuan untuk mengetahui kualitas air dan pertumbuhan gurami (Osphronemus goramy Lac., 1802), lele (Clarias sp.), dan nila merah (Oreochromis sp.) di kolam dengan pergantian air terbatas. Penelitian dilakukan di Sleman, Yogyakarta dengan metode Rancangan Acak Lengkap (RAL) yang terdiri dari dua ulangan. Percobaan menggunakan enam kolam permanen yang berukuran 2 x 2 x 1 m dengan ketinggian air 60 cm. Gurami (65,33 plus minus 10,80 g/individu) dan nila merah (42,77plus minus 10,60 g/individu) menggunakan padat tebar 25 ekor/m2, sedangkan lele adalah (15,73 plus minus 5,45 g/individu) menggunakan padat tebar 100 ekor/m2. Pakan komersial diberikan tiga kali sehari secara ad libitum. Sampling kualitas air dan pertumbuhan ikan diamati setiap dua minggu sekali selama 58 hari. Penyiponan limbah dilakukan setiap 14 hari sekali sebesar 10 persen dari volume air, sementara itu curah hujan selama penelitian dicatat. Hasil penelitian menunjukkan bahwa kualitas air dan pertumbuhan ikan selama pemeliharaan dengan pergantian air terbatas lebih sesuai digunakan untuk pemeliharaan lele daripada gurami dan nila merah.

This study aims to know suitability of water quality and the growth of goramy (Osphronemus goramy Lac., 1802), catfish (Clarias sp.), red tilapia (Oreochromis sp.) in the ponds with limited water exchange system. The study was conducted in Sleman, Yogyakarta with method completely randomized design (CRD) with two replications. The experiment used six permanent ponds measuring 2 x 2 x 1 m with water depth of 60 cm. Goramy (65,33 plus minus 10,80 g/individual) and red tilapia (42,77 plus minus 10,60 g/individual) was stock at density of 25 fish/m2 while cat fish (15,73 plus minus 5,45 g/individual) was stock at density of 100 fish/ m2. Commercial feed were given to the fish three times a day in ad libitum. Siphon was of waste were down by 10 percent of water volume, meanwhile the water rainfall during the experiment were recorded. The results showed that the parameters of water quality and fish growth during culture with limited water exchange were more suitable for the culture of cat fish than goramy and red tilapia

Kata Kunci : kualitas air, gurami, lele, nila merah, pertumbuhan, water quality, goramy, catfish, red tilapia, growth