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Indicator 4.1.2.5
by Contact on 8 October 2026
Requirement
The UoC shall ensure that the HMP, following consultation with a registered veterinarian or aquatic animal health professional, considers the use of anaesthesia during handling activities.
How Do I Interpret This Requirement?
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The use of anaesthesia is not required in every handling operation, but it should be considered in operations that can inflict pain, e.g.:
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Inter-peritoneal vaccinations.
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Stripping.
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Handling operations that require fish immobilisation.
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Evidence of Implementation
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HMP includes consideration for the use of anaesthesia during handling.
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List of handling operations requiring the use of anaesthesia.
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List of licenced anaesthetics available on site.
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Records:
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Anaesthetic prescriptions.
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Anaesthetic usage.
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Auditors Should Confirm
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The HMP includes consideration of the use of anaesthetics during handling.
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Implementation can be confirmed by cross-checking the HMP with records, information from employee interviews and observations.
Useful Resources
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Readman, G.D., Owen, S.F., Knowles, T.G. et al. (2017) Species specific anaesthetics for fish anaesthesia and euthanasia. Scientific Reports.
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Brønstad A. (2022) Good Anesthesia Practice for Fish and Other Aquatics. Biology.
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European Food Safety Authority (EFSA) (2009) General approach to fish welfare and to the concept of sentience in fish. EFSA Journal.
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Pathinathan, P., & Roshan, H. (2024). Exploring Anesthetic Strategies in Aquaculture: Enhancing Welfare and Management Practices. The Science World.
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Husen, Md & Sharma, S. (2014). Efficacy of Anesthetics for Reducing Stress in Fish During Aquaculture Practices – A Review. Kathmandu University Journal of Science, Engineering and Technology.