The effects of LED light spectrum manipulation on growth and color performance of giant gourami Osphronemus gouramy Lacepede Padang strain

This study aimed to evaluate the effect of light spectrum on growth and color performance giant gourami Padang strain. The experiment used a completely randomized design (RAL) with four emitting diode (LED) treatments in different emission spectra (white, red, green, blue) at 550 Lux intensity, compared control treatment (light room white tubular lamp 50 intensity). irradiation was carried out for 12 hours photoperiod. fish had total length 82.90±4.2 mm body weight 9.87 ± 0.99 g. highest found blue LED specific rate 2.73 0.2% feed efficiency 86.26 2.71%. best red RGB ratio 44.57 0.62% dorsal fin, 38.41 1.36% pectoral fins, 45.33 2.25% anal fin chromatophore cell concentration 1.973±58 cells/mm2.
 
 Keywords : Osphronemus gouramy, LED, spectrum, chromatophore, light
 ABSTRAK
 Penelitian ini bertujuan untuk mengevaluasi pengaruh spektrum cahaya terhadap kinerja pertumbuhan dan warna ikan gurami strain Padang. Rancangan penelitian yang digunakan adalah rancangan acak lengkap dengan 4 perlakuan lampu diodes memiliki panjang gelombang berbeda (putih, merah, hijau biru) intensitas kontrol (cahaya ruang berasal dari putih Lux). Penyinaran dilakukan selama jam mengikuti fotoperiod. Ikan uji 82,90 4,2 mm, bobot 9,87 0,99 Kinerja terbaik terdapat pada biru laju spesifik sebesar 2,73 0,2% efisiensi pakan 86,26 2,71%. Performa merah rasio bagian 44,57 0,62%, sirip pektoral 38,41 1,36%, 45,33 2,25% jumlah sel kromatofor sebanyak 1973 sel/mm2.
 Kata kunci biru, spektrum, kromatofor,