当前位置: X-MOL 学术Aquaculture › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Essential oil of Ocimum gratissimum (Linnaeus, 1753) as anesthetic for Lophiosilurus alexandri: Induction, recovery, hematology, biochemistry and oxidative stress
Aquaculture ( IF 4.5 ) Pub Date : 2020-12-01 , DOI: 10.1016/j.aquaculture.2020.735676
Tulio P. Boaventura , Carine F. Souza , André L. Ferreira , Gisele C. Favero , Matheus D. Baldissera , Berta M. Heinzmann , Bernardo Baldisserotto , Ronald K. Luz

Abstract This study tested the use of essential oil of Ocimum gratissimum (EOOG) as an anesthetic for juvenile Lophiosilurus alexandri and its efficiency in mitigating the effects of handling stress. Two experiments were performed. Experiment 1 determined the time for anesthesia induction and recovery and the ventilatory frequency of juveniles exposed to different concentrations of EOOG (0, 10, 30, 90, 150 and 300 mg L−1). Based on the results of Experiment 1, Experiment 2 evaluated the effects of 0, 10 and 90 mg L−1 of EOOG on blood parameters and oxidative stress in liver and brain immediately after induction and one hour after recovery. No mortality was observed in any experiment. In Experiment 1, times for anesthesia induction were shorter, and recovery times longer, with increased EOOG concentrations. Compared to the animals anesthetized with 0, 10 and 30 mg L−1 of EOOG, higher ventilatory frequencies were observed during induction for animals anesthetized with 90, 150 and 300 mg L−1. In experiment 2, variations on hematological variables derived from EOOG exposition were determined, but parameters returned to baseline levels one hour after recovery. The use of 90 mg L−1 EOOG prevented increased plasma glucose and cortisol levels one hour after handling. However, animals anesthetized with 90 mg L−1 EOOG had higher concentrations of ROS (hepatic and brain) after induction and one hour after recovery. The increase in ROS for animals anesthetized with 90 mg L−1 was not matched by the antioxidant defense system, which showed a reduction in brain GST activity one hour after recovery. Juveniles anesthetized with 10 mg L−1 EOOG only presented an increase in hepatic ROS one hour after recovery from anesthesia, however, there was a response from the antioxidant defense system, with an increase in brain and hepatic GST. The increase in ROS in treatments submitted to handling under the effect of anesthesia did not cause tissue damage. It is concluded that the use of 90 and 150 mg L−1 EOOG cause anesthesia in L. alexandri within the ideal intervals of induction and recovery. The use of 90 mg L−1 EOOG prevented higher levels of plasma glucose and cortisol one hour after handling, and induced changes to the antioxidant defense system, increasing the concentration of liver and brain ROS, and reducing the activity of brain GST one hour after recovery.

中文翻译:

Ocimum gratissimum (Linnaeus, 1753) 精油作为 Lophiosilurus alexandri 的麻醉剂:诱导、恢复、血液学、生物化学和氧化应激

摘要 本研究测试了罗非鱼 (Ocimum gratissimum) (EOOG) 精油作为亚历山德罗非鱼幼鱼的麻醉剂及其减轻处理压力影响的效率。进行了两个实验。实验 1 确定了暴露于不同浓度 EOOG(0、10、30、90、150 和 300 mg L-1)的幼鱼的麻醉诱导和恢复时间和通气频率。基于实验 1 的结果,实验 2 评估了 0、10 和 90 mg L-1 EOOG 在诱导后立即和恢复后 1 小时对血液参数和肝脏和大脑中的氧化应激的影响。在任何实验中均未观察到死亡。在实验 1 中,随着 EOOG 浓度的增加,麻醉诱导时间较短,恢复时间较长。与用 0、10 和 30 mg L-1 EOOG 麻醉的动物相比,在用 90、150 和 300 mg L-1 麻醉的动物诱导期间观察到更高的换气频率。在实验 2 中,确定了来自 EOOG 暴露的血液学变量的变化,但参数在恢复后一小时恢复到基线水平。处理后一小时,使用 90 mg L-1 EOOG 可防止血浆葡萄糖和皮质醇水平升高。然而,用 90 mg L-1 EOOG 麻醉的动物在诱导后和恢复后 1 小时内具有更高浓度的 ROS(肝脏和大脑)。用 90 mg L-1 麻醉的动物的 ROS 增加与抗氧化防御系统不匹配,其显示恢复后一小时脑 GST 活性降低。用 10 mg L-1 EOOG 麻醉的幼鱼仅在麻醉恢复后 1 小时出现肝脏 ROS 增加,然而,抗氧化防御系统有反应,大脑和肝脏 GST 增加。在麻醉作用下进行处理的治疗中 ROS 的增加不会引起组织损伤。得出的结论是,在理想的诱导和恢复间隔内,使用 90 和 150 毫克 L-1 EOOG 会导致亚历山德罗的麻醉。使用 90 mg L−1 EOOG 可防止处理后一小时血浆葡萄糖和皮质醇水平升高,并诱导抗氧化防御系统发生变化,增加肝脏和大脑 ROS 的浓度,并在处理后一小时降低大脑 GST 的活性。恢复。抗氧化防御系统有反应,大脑和肝脏 GST 增加。在麻醉作用下进行处理的治疗中 ROS 的增加不会引起组织损伤。得出的结论是,在理想的诱导和恢复间隔内,使用 90 和 150 毫克 L-1 EOOG 会导致亚历山德罗的麻醉。使用 90 mg L−1 EOOG 可防止处理后一小时血浆葡萄糖和皮质醇水平升高,并诱导抗氧化防御系统发生变化,增加肝脏和大脑 ROS 的浓度,并在处理后一小时降低大脑 GST 的活性。恢复。抗氧化防御系统有反应,大脑和肝脏 GST 增加。在麻醉作用下进行处理的治疗中 ROS 的增加不会引起组织损伤。得出的结论是,在理想的诱导和恢复间隔内,使用 90 和 150 毫克 L-1 EOOG 会导致亚历山德罗的麻醉。使用 90 mg L−1 EOOG 可防止处理后一小时血浆葡萄糖和皮质醇水平升高,并诱导抗氧化防御系统发生变化,增加肝脏和大脑 ROS 的浓度,并在处理后一小时降低大脑 GST 的活性。恢复。得出的结论是,在理想的诱导和恢复间隔内,使用 90 和 150 毫克 L-1 EOOG 会导致亚历山德罗的麻醉。使用 90 mg L−1 EOOG 可防止处理后一小时血浆葡萄糖和皮质醇水平升高,并诱导抗氧化防御系统发生变化,增加肝脏和大脑 ROS 的浓度,并在处理后一小时降低大脑 GST 的活性。恢复。得出的结论是,在理想的诱导和恢复间隔内,使用 90 和 150 毫克 L-1 EOOG 会导致亚历山德罗的麻醉。使用 90 mg L−1 EOOG 可防止处理后一小时血浆葡萄糖和皮质醇水平升高,并诱导抗氧化防御系统发生变化,增加肝脏和大脑 ROS 的浓度,并在处理后一小时降低大脑 GST 的活性。恢复。
更新日期:2020-12-01
down
wechat
bug