Fish Stunning and Electrocution Device for Aquaculture

1. Definition

A fish electrocution device is used in aquaculture to stun or humanely kill fish quickly and in a controlled manner by applying an appropriate electrical current. This method ensures animal welfare, preserves meat quality, and optimizes harvesting processes.

2. Operating Principle

The device generates an electric field through water or directly through the fish. Depending on the settings (intensity, voltage, duration), it can cause:

• Stunning: loss of consciousness without immediate death, before further processing (bleeding, handling).

• Rapid killing: causing immediate cardiac or brain failure.

Parameters are adjusted according to:

• Fish species (salmon, trout, seabass, seabream, etc.)

• Fish size and weight

• Water conditions (salinity, temperature)

3. Technical Features

• Adjustable current generator: choice between direct current (DC) or alternating current (AC).

• Adapted electrodes: installed in tanks, channels, or on conveyors.

• Automated control systems: automatic adjustment of parameters for optimal results.

• Enhanced safety: protection systems for operators against electrical hazards.

• Robust construction: corrosion-resistant materials for humid environments.

4. Advantages

• Animal welfare compliance: meets international animal welfare standards (e.g., OIE, RSPCA).

• Superior product quality: reduced stress and minimal meat acidification.

• Efficient industrial process: rapid stunning/killing and reduced manual handling.

• Operator safety: automatic electrical risk management.

5. Applications

• Industrial fish farms: large-scale fish harvesting.

• Processing units: fish preparation for bleeding and packaging.

• Aquaculture research centers: welfare studies and process improvements.

Summary

The fish electrocution device is an essential tool for respectful, efficient, and optimized harvesting, ensuring both industrial performance and animal welfare.