Bairami Igdery Allieh, Farhangi Mohammad, Adineh Hossein, Jafaryan Hojatollah, Kordjazi Zia, Hoseinifar Seyed Hossein
Department of Fisheries, Faculty of Agriculture and Natural Resources, Gonbad Kavous University, Gonbad Kavous, Golestan, Iran.
Department of Fisheries, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.
Aquac Nutr. 2023 Aug 11;2023:4581144. doi: 10.1155/2023/4581144. eCollection 2023.
Herbal treatment augments immune and antioxidant responses and suppresses stress in fish. Ginger () is a popular plant with medicinal uses because of its immunostimulant, antimicrobial, and antioxidant characteristics. This study aimed to investigate the effects of ginger () on growth, digestive enzymes activity, antioxidant and immune response, and salinity stress resistance of Caspian roach (). Fish (0.98 ± 0.09 g) were divided into four treatment-fed diets containing 0 (control, Z0), 10 (Z10), 20 (Z20), and 30 (Z30) g/kg ginger powder for 56 days and then subjected to 2 g/L salinity stress for 48 hr. The highest final weight of specific growth rate (SGR), superoxide dismutase (SOD), and catalase activity and the lowest final weight of feed conversion ratio (FCR) and malondialdehyde (MDA) were observed in fish-fed diets containing 10 and 20 g/kg ginger inclusion. Intestinal protease activity significantly increased in Z10 treatment, and the highest amylase and lipase activities were related to control, including 10 g/kg ginger in the diet compared to the control group had a significant effect on immune indices such as immunoglobulin M (IgM) and ACH50 ( < 0.05). The highest lysozyme was obtained in Z20 treatment, which had a significant difference in the control ( < 0.05). Cortisol and glucose levels were significantly lower in ginger treatments than the control before and/or after salinity stress. Histopathologic results showed that hyperplasia, edema, expansion of secondary lamella, epithelial cells, and necrosis of gills were most common lesions. However, the results of this study demonstrate that using ginger powder in addition to improving of growth, it can be also effective in survival rate of Caspian roach fingerling as an endangered species exposed to salinity stress.
草药治疗可增强鱼类的免疫和抗氧化反应，并抑制其应激反应。姜（）是一种因具有免疫刺激、抗菌和抗氧化特性而具有药用价值的常见植物。本研究旨在探讨姜（）对里海拟鲤（）生长、消化酶活性、抗氧化和免疫反应以及耐盐胁迫能力的影响。将鱼（0.98±0.09克）分为四组，分别投喂含0（对照组，Z0）、10（Z10）、20（Z20）和30（Z30）克/千克姜粉的饲料，持续56天，然后使其遭受2克/升盐度胁迫48小时。在投喂含10和20克/千克姜粉饲料的鱼中，观察到特定生长率（SGR）、超氧化物歧化酶（SOD）和过氧化氢酶活性的最终体重最高，而饲料转化率（FCR）和丙二醛（MDA）的最终体重最低。Z10处理组肠道蛋白酶活性显著增加，淀粉酶和脂肪酶活性最高的与对照组相关，与对照组相比，饲料中含10克/千克姜对免疫指标如免疫球蛋白M（IgM）和ACH50有显著影响（<0.05）。Z20处理组溶菌酶含量最高，与对照组有显著差异（<0.05）。在盐度胁迫之前和/或之后，姜处理组的皮质醇和葡萄糖水平显著低于对照组。组织病理学结果显示，鳃的增生、水肿、次生鳃小片扩张、上皮细胞和坏死是最常见的病变。然而，本研究结果表明，使用姜粉除了能促进生长外，对于作为濒危物种的里海拟鲤幼鱼在遭受盐度胁迫时的存活率也有显著效果。
