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Researchers measure the EEG (brain waves) after stunning to determine the electrical current required to render sheep instantaneously insensible. The small plastic devices in the head are for measuring changes in neuro transmitters after stunning.  Either electrical or chemical measurements in the brain are the best methods for determining the efficacy of new stunning methods.

Sheep with EEG electrodes

Credit: Temple Grandin

Digital Credit: Temple Grandin

Publisher: Grandin Livestock Handling Systems, Inc.

Rights: Name must appear as a credit whenever the image is used -

Description: Researchers measure the EEG (brain waves) after stunning to determine the electrical current required to render sheep instantaneously insensible. The small plastic devices in the head are for measuring changes in neuro transmitters after stunning. Either electrical or chemical measurements in the brain are the best methods for determining the efficacy of new stunning methods.

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