The color quality of Sumatra barb Puntigrus tetrazona (Bleeker, 1855) in different light spectrum exposure

Abstract

The color quality of Sumatra barb that cultivated by the farmers are not as good as the fish that collected from the wild. One of the causes is the unsuitable environment for maintaining and breeding Sumatran barb. This research aims to compare color quality of Sumatra barb Puntigrus tetrazona by exposure the different light spectrums on maintenance media. The experiment was completely randomize design with six treatments and three replications consisted of K (control), R (room light), M (red light spectrum), H (green light spectrum), B (blue light spectrum) and P (white light spectrum). The method used to measure Sumatra barb color quality using Photoshop CS 5 software and chromatophore cell calculations. The results of color quality analysis after 28 showed that the (M) treatment had the highest percentage of color quality was 48.81 ± 1.57% for orange color and 32.26 ± 0.07% for black color. The highest number of chromatophore cells was in M treatment with 147 ± 3.7 cells mm-². The red light spectrum (M) treatment showed the best physiological response and improvement of color quality and the glucose level was 23.00 ± 1.00 mg dL−1. The best color quality of the Sumatra barb is produced by exposure to the red light spectrum (M).