Spurge (
            <i>Euphorbia rigida</i>
            ) exhibits anaesthetic effect in rainbow trout (
            <i>Oncorhynchus mykiss</i>
            ) without altering plasma cortisol levels

Alagöz, Kerem; Paruğ, Şükrü Şenol; Taştan, Yiğit; Bi̇len, Soner; Sönmez, Adem Yavuz

doi:10.1111/are.15414

Cited by 2 publications

(1 citation statement)

References 67 publications

(106 reference statements)

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“…In Atlantic salmon (Salmo salar), exposure to this anesthetic decreased the plasma levels of glucose and cortisol [7]. Similarly, extract of spurge (Euphorbia rigida), a species of flowering plant, exhibited an anesthetic effect in rainbow trout (Oncorhynchus mykiss) without altering plasma cortisol levels [36]. However, not all natural extracts have this characteristic.…”

Section: Discussionmentioning

confidence: 99%

Physiological Response of Atlantic Salmon (Salmo salar) to Long-Term Exposure to an Anesthetic Obtained from Heterosigma akashiwo

Gonçalves

Llanos-Rivera

Ruano

et al. 2022

Toxins

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Despite the invaluable role of anesthetics as a tool for ensuring animal welfare in stressful situations, there is currently a lack of anesthetic drugs that meet the requirements of intensive aquaculture. In response to the growing interest in anesthetic substances of natural origin, this study evaluated the physiological and health impact of an anesthetic based on an extract of the microalga Heterosigma akashiwo on juvenile salmon (Salmo salar) exposed for a period of 72 h. To simulate a condition closer to reality where fish are subjected to stimuli (e.g., transport), the animals were exposed to 50 mg L−1 of algal extract and to physical stress. Functional, physiological, and histological parameters were evaluated in blood and tissues at different sampling periods (0, 24, and 72 h). There was no mortality and the induction and recovery times observed were within the established criteria for anesthetic efficacy. The anesthetic extract did not induce any side effects, such as stress or metabolic damage, indicating that this extract is a viable option for supporting fish welfare during deleterious events. This study provides information to support that the anesthetic extract tested, derived from H. akashiwo, is a promising candidate drug for operations requiring sedation (e.g., Salmonid transport).

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Section: Discussionmentioning

confidence: 99%

Physiological Response of Atlantic Salmon (Salmo salar) to Long-Term Exposure to an Anesthetic Obtained from Heterosigma akashiwo

Gonçalves

Llanos-Rivera

Ruano

et al. 2022

Toxins

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show abstract

Effects of dietary Astragalus caudiculosus (Boiss & Huet, 1856) supplementation on growth, hematology, antioxidant enzyme activities, and immune responses in rainbow trout (Oncorhynchus mykiss Walbaum, 1792)

Sönmez

Len

Taştan

et al. 2022

Fish & Shellfish Immunology

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Spurge ( Euphorbia rigida ) exhibits anaesthetic effect in rainbow trout ( Oncorhynchus mykiss ) without altering plasma cortisol levels

Abstract: Anaesthetics play an important role in aquaculture. To ensure fish welfare and provide an appropriate working environment, anaesthetics are used substantially in many applications such as vaccination, transportation, tagging, grading, milking or measurement

Cited by 2 publications

References 67 publications

Physiological Response of Atlantic Salmon (Salmo salar) to Long-Term Exposure to an Anesthetic Obtained from Heterosigma akashiwo

Physiological Response of Atlantic Salmon (Salmo salar) to Long-Term Exposure to an Anesthetic Obtained from Heterosigma akashiwo

Effects of dietary Astragalus caudiculosus (Boiss & Huet, 1856) supplementation on growth, hematology, antioxidant enzyme activities, and immune responses in rainbow trout (Oncorhynchus mykiss Walbaum, 1792)

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