APLIKASI PEMBERIAN WARNA CAHAYA YANG BERBEDA TERHADAP PERUBAHAN WARNA TUBUH DAN PERTUMBUHAN IKAN GUPPY Poecilia reticulata

Abstract

Variasi kecerahan warna dapat terjadi akibat stres yang disebabkan oleh faktor lingkungan. Faktor lingkungan yang mempengaruhi perkembangan warna adalah pencahayaan. Penelitian terapan ini menilai perubahan pada kualitas warna, tingkah laku dan kadar glukosa ikan guppy yang diberi perlakuan LED warna putih, merah, hijau dan biru. Rancangan Acak Lengkap (RAL) dengan 5 perlakuan dan 3 ulangan: Kontrol tanpa lampu (?KT), Kontrol lampu putih (KL), Lampu merah (LM), Lampu hijau (LH) dan Lampu biru (LB). Pertumbuhan (PPM dan LPPS) pada perlakuan LB memberikan hasil terbaik dengan nilai PPM tertinggi (1,65±0,01 cm) dan LPPS tertinggi (1,12±0,008% hari?¹), berbeda signifikan (p<0,05) dengan semua perlakuan lainnya. Modified Toca Color Finder (M-TCF) tertinggi pada LB (29,8±0,1). Survival Rate (SR) tidak terdapat perbedaan signifikan antar perlakuan. Glukosa darah terendah pada LB (23,5±0,5 mg dL-1) dan kolesterol terendah pada LM (101±2,08 mg dL-1).Perlakuan cahaya biru (LB) terbukti paling efektif dalam meningkatkan tingkat kecerahan warna tubuh, performa pertumbuhan, serta respons perilaku ikan guppy, sekaligus mampu meminimalkan tingkat stres yang tercermin dari kadar glukosa darah.

Variations in color brightness can occur due to stress caused by environmental factors. The environmental factor that influences color development is lighting. This applied research assessed changes in color quality, behavior, and blood glucose levels of guppy fish treated with white, red, green, and blue LED lights. A Completely Randomized Design (CRD) was employed with 5 treatments and 3 replications: Control without light (?KT), Control with white light (KL), Red light (LM), Green light (LH), and Blue light (LB). Growth performance measured by Absolute Length Growth (PPM) and Specific Length Growth Rate (LPPS) yielded the best results in the LB treatment, which recorded the highest PPM (1.65±0.01" cm" ) and LPPS (1.12±0.008%?" day" ?^(-1)),. The highest Modified Toca Color Finder (M-TCF) was observed in LB (29.8±0.1). Survival Rate (SR) showed no significant difference among treatments. The lowest blood glucose was recorded in LB (23.5±0.5 mg dL-1) and the lowest cholesterol was found in LM (101±2.08 mg dL-1). Consequently, blue light treatment (LB) proved to be the most effective in enhancing body color brightness, growth performance, and behavioral responses of guppy fish, while minimizing stress levels as reflected by blood glucose concentrations.