This set of Meat Processing Multiple Choice Questions & Answers (MCQs) focuses on “Electrical Stimulation of Meat”.
1. Why is stunning done in a slaughtering process?
a) To make sure that the animal is unconscious
b) To ensure that the animal is well fed
c) To increase the stress on animals
d) To check the health of animal
View Answer
Explanation: These are commonly seen in commercial poultry slaughter services. The stunning process makes the animal/bird unconscious before slaughtering. They use of low voltage electrical current or controlled atmosphere stunning.
2. What is used for killing the birds after stunning?
a) Electric rod
b) Stainless steel knife
c) Wooden stick
d) Pithing rod
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Explanation: Pithing rods are used for killing the birds after stunning. These small rods destroy the organs of the birds. It helps in the destruction of brain and spinal cord of the bird. These rods are well sanitized and cleaned after each killing.
3. Which of the following is also called as electro-anesthesia method?
a) Electrical stunning
b) Controlled atmospheric stunning
c) Mechanical stunning
d) Electric light stunning
View Answer
Explanation: Electro-anesthesia method is also called as electrical stunning. This process works on the basis of induction of a general epileptiform seizure. The electrical current is passed through the brain of an animal.
4. What gas is used for electric- gas stunning in meat industries?
a) Argon
b) Helium
c) Carbon dioxide
d) Ammonia
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Explanation: In gas stunning process, the animals are exposed to a mixture of breathing gases like argon and nitrogen. This produces unconsciousness and death through hypoxia. This is not instantaneous process.
5. What is the recommended current for electric stunning?
a) 50 Hz
b) 1050 Hz
c) 650 Hz
d) 850 Hz
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Explanation: The recommended current for broiler chicken stunning is 650Hz. It proves to be effective in making the birds unconscious. It also enhances the meat quality. It is important to maintain the voltage and current during the stunning process.
6. What is the standard stunning method used in commercial slaughter house?
a) Electrical stunning
b) Controlled atmospheric stunning
c) Mechanical stunning
d) Electric light stunning
View Answer
Explanation: The standard stunning methods used in commercial slaughterhouses are electrical water bath stunning. Electric rods are connected to the water bath with a frequency of 650 Hz. This process is very effective compared to other stunning methods.
7. What is disadvantage of electric stunning?
a) High installation and operating costs
b) Low installation and operating costs
c) Requires skill labor
d) Requires high energy
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Explanation: The disadvantage of electric stunning is it requires high energy.it also requires uninterrupted electric supply. This process cannot be easily achieved in small scale production. The persons handling this equipment should have wear proper attire to prevent shocks.
8. What is the minimum amount of current required per bird to induce unconsciousness in them?
a) 300 mA
b) 120 mA
c) 556 mA
d) 234 mA
View Answer
Explanation: The electrical water bath stunning is the common method. After chaining the birds, the heads are immersed into a water bath which is electrified. It causes electric current to run through the head and body.
9. What is the recommended time for passing the current in stunning process?
a) 45 sec
b) 60 sec
c) 30 sec
d) 10 sec
View Answer
Explanation: The electrical stunning must last for at least 45 seconds. This time frame allows enough time for death to occur by bleeding out. The process requires a minimum of 120mA to make the animal/ bird unconscious.
10. What is the advantage of controlled atmosphere chambers over the electrical water bath stunning?
a) High installation and operating costs
b) Handling stress is reduced
c) Requires skill labor
d) Requires high energy
View Answer
Explanation: Controlled atmosphere chambers have advantage than the electrical water bath stunning. In this controlled atmosphere stunning, handling stress is reduced. The efficiency of this process is nearly 99-100%.
11. What is the advantage of gas stunning over the electrical water bath stunning?
a) High installation and operating costs
b) Handling stress is reduced
c) Microbiological and quality aspects
d) Requires high energy
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Explanation: The gas stunning does not depend on parameters like size and shape. From a quality perspective also the gas stunning is considered superior to other stunning methods like water-bath stunning. The water should be free from microbes and is to be checked regularly.
12. Is electrical stunning painful for the birds?
a) True
b) False
View Answer
Explanation: In the electric stunning process, the bird becomes unconscious immediately. The voltage used in electric stunning is sufficient to pass through brain and interrupt its brain activity. Therefore, the birds are unable to feel pain and other sensation.
13. Does Halal Food Authority allow stunning of birds and animals?
a) True
b) False
View Answer
Explanation: Halal Food Authority approves only two types of stunning. They are water bath stunning and electric tong stunning. The water bath stunning is used for stunning poultry and electric tong stunning is used for ovine meat.
Sanfoundry Global Education & Learning Series – Meat Processing.
To practice all areas of Meat Processing, here is complete set of Multiple Choice Questions and Answers.
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