The oxidative status and intestinal and liver histology of Barramundi Perch Lates calcarifer juveniles were investigated in an experiment using different tank colors (black, red, blue, and white) over 6 weeks. It has been previously shown that background color can affect physiological processes in different species. The background colors did not cause significant differences in malondialdehyde, catalase, or glutathione S-transferase, whereas superoxide dismutase and glutathione peroxidase activities were significantly higher in fish that were kept in black tanks. Plasma cortisol of fish adapted to blue and white tanks was significantly lower than that of fish in black tanks. The liver total antioxidant capacity was highest for fish that were maintained in white and blue tanks. The results of histopathological evaluation revealed that tank colors did not have significant effects on intestinal mucosal and enterocyte dimensions. No specific alterations were found in the liver or intestine of fish relative to the tank background color during the experimental period. In conclusion, white and blue tanks resulted in improved oxidative status of Barramundi Perch juveniles.

中文翻译：

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鲈鱼的氧化状态和消化组织学对不同鱼缸颜色的反应

在 6 周内使用不同颜色（黑色、红色、蓝色和白色）的实验对 Barramundi Perch Lates calcarifer 幼鱼的氧化状态和肠道和肝脏组织学进行了研究。先前已经表明，背景颜色会影响不同物种的生理过程。背景颜色不会导致丙二醛、过氧化氢酶或谷胱甘肽 S 转移酶的显着差异，而在黑色水箱中饲养的鱼的超氧化物歧化酶和谷胱甘肽过氧化物酶活性显着更高。适应蓝白缸的鱼血浆皮质醇明显低于黑缸鱼。饲养在白色和蓝色水箱中的鱼的肝脏总抗氧化能力最高。组织病理学评估结果表明，罐体颜色对肠粘膜和肠细胞尺寸没有显着影响。在实验期间，鱼的肝脏或肠道相对于水箱背景颜色没有发现任何特定的变化。总之，白色和蓝色水箱改善了尖吻鲈幼鱼的氧化状态。