Topics:
Animal Refresher, Meat Science
Best Stunning Method for Pigs
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Question (English)
The most suitable method of stunning in pigs is:
- Chemical (CO2) stunning ✓ Correct
- Electrical stunning
- Mechanical stunning
- No stunning is used for pigs
Explanation:
Correct Answer: Chemical (CO2) Stunning
The most suitable method of stunning for pigs is Chemical (Gas) Stunning using CO2 gas.
CO2 Stunning Parameters for Pigs
- Gas concentration: 70% CO2 + 30% O2
- Exposure time: 45 seconds
- Mechanism: CO2 blocks nerve endings → animal becomes unconscious without panic or struggle
Advantages of CO2 Stunning in Pigs
- Reduces stress and struggling (important to prevent PSE meat)
- No physical handling required → lower risk of injury
- Suitable for high-throughput commercial pig slaughter
- Reduces incidence of petechial haemorrhages (splash) compared to electrical stunning
Note on Electrical Stunning in Pigs
Electrical stunning can also be used for pigs but may cause 'splash' (petechial haemorrhages in subcutaneous tissue) if current is too high or if the animal is not bled within 30 seconds.
📚 About this Topic — Animal Refresher
This multiple choice question is from Animal Refresher, Meat Science. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Refresher to strengthen your preparation.
