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Evaluation of electrical stunning in commercial rabbits effect on brain function
M H Anil1, A B Raj, J L McKinstry
1School of Veterinary Science, University of Bristol, Langford, Bristol BS40 5DU, UK.
Meat Science
|November 9, 2011
Summary
Electrical stunning effectively induces insensibility in rabbits, with electrocorticogram (ECOG) recordings showing epileptiform activity. A minimum current of 140 mA is recommended to ensure welfare during rabbit slaughter.
Area of Science:
- Animal Welfare Science
- Neuroscience
- Veterinary Medicine
Background:
- Electrical stunning is a common method for slaughtering commercial rabbits.
- Understanding the neurological effects of stunning is crucial for ensuring animal welfare.
- Previous studies have not fully characterized brain function changes post-stunning.
Purpose of the Study:
- To evaluate the effect of electrical stunning on brain function in commercial rabbits.
- To determine the duration of insensibility induced by electrical stunning.
- To establish optimal electrical parameters for humane rabbit slaughter.
Main Methods:
- Electrophysiological studies were conducted on eight commercial rabbits.
- Electrocorticogram (ECOG) recordings were analyzed to assess brain activity.
- Evoked responses and duration of physical activity were measured post-stunning.
- Electrical stunning was applied using 100 V for 1 second.
Main Results:
- Electrocorticogram (ECOG) recordings revealed epileptiform activity, indicating insensibility.
- Evoked responses were absent for a significant period (24 to 204 seconds) post-stunning.
- Spontaneous physical activity and recovery times were also documented.
Conclusions:
- Electrical stunning at 100 V for 1 s effectively induces a period of brain insensibility in rabbits.
- Application of a minimum current of 140 mA, followed by prompt sticking, is recommended.
- This approach should mitigate welfare issues associated with rabbit stunning and slaughter.
