Universidade Federal do Amazonas - UFAM, Faculdade de Ciências Agrárias - FCA, Programa de Pós-graduação em Ciência Animal e Recursos Pesqueiros - PPGCARP, Campus Universitário, Manaus, AM, Brasil.
Instituto Federal de Educação, Ciência e Tecnologia do Amazonas - IFAM, Laboratório de Morfofisiologia Animal, Campus Manaus Centro - CMC, Manaus, AM, Brasil.
Braz J Biol. 2024 Oct 4;84:e283172. doi: 10.1590/1519-6984.283172. eCollection 2024.
Symphysodon discus is known in the world of aquariums for its market value, beauty, and behavior. However, more substantial information about its physiology and biology must be available, which can hinder its development and maintenance in breeding systems. The study evaluated the blood biochemistry and erythrogram of 20 specimens of S. discus captured in the municipality of Barcelos, Amazonas, with an average weight of 89.80 ± 7.13 g and an average length of 13.48 ± 0.55 cm. The erythrogram evaluated variables such as hematocrit (Ht), hemoglobin (Hb), red blood cell count (RBC), mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), and mean corpuscular hemoglobin concentration (MCHC). Blood biochemistry was analyzed, including cholesterol levels, total proteins, triglycerides, glucose, urea, and chlorides. Intra-specific variations were observed between the surveyed individuals about the Hb, MCV, and MCH values. The values of triglycerides, cholesterol, and chlorides were elevated compared to other cichlids. This study may be useful to serve as a parameter to indicate the normal health conditions of this Amazonian cichlid. It can be applied in studies for ornamental fish farming and actions for managing and conserving the species.
霓虹燕子在水族箱世界因其市场价值、美丽和行为而闻名。然而，关于其生理学和生物学的更实质性信息必须是可用的，这可能会阻碍其在繁殖系统中的发展和维护。该研究评估了 20 个在亚马逊州巴塞洛市捕获的霓虹燕子标本的血液生化和红细胞参数，平均体重为 89.80 ± 7.13 g，平均长度为 13.48 ± 0.55 cm。红细胞参数评估了血细胞比容（Ht）、血红蛋白（Hb）、红细胞计数（RBC）、平均红细胞体积（MCV）、平均红细胞血红蛋白量（MCH）和平均红细胞血红蛋白浓度（MCHC）等变量。血液生化分析包括胆固醇水平、总蛋白、甘油三酯、葡萄糖、尿素和氯化物。调查个体之间观察到 Hb、MCV 和 MCH 值存在种内变异。与其他慈鲷鱼相比，甘油三酯、胆固醇和氯化物的值升高。这项研究可能有助于作为指示这种亚马逊慈鲷正常健康状况的参数。它可以应用于观赏鱼养殖研究以及管理和保护该物种的行动。
