1- Poultry lecture 2

Question 1

T/F Chickens are stunned before being shackled

Answer 1

True- this is changing now they used to be shackled prior to stunning

Question 2

What is the length of time from stun to brain death in poultry

Answer 2

<15 sec

Question 3

List the stunning methods used in commercial poultry abattoirs

Answer 3

Electrical stunning
Controlled atmosphere (gas)
Low atmospheric stunning (LAPS)

Question 4

List some problems with electrically stunning poultry

Answer 4

Requires shackling of live birds
Some birds not adequately stunned
Pre-stun shocks
Possible electro immobilistaion

Question 5

What are the 2 PM inspection of a chicken?

Answer 5

PM whole bird (After defeathering)

PM of offal (After evisceration)

Question 6

Why is a high co2 controlled atmosphere stunning bad?

Answer 6

Birds panic = as we have co2 receptors so suffocating

Question 7

T/F A mix of argon & co2 mix is the best-controlled atmosphere stunning

Answer 7

True

Question 8

Benefits of controlled atmosphere stunning?

Answer 8

Eliminates live shackling
All birds stunned (non-recovery)
Improved working conditions & meat quality

Question 9

List some problems with controlled atmosphere stunning

Answer 9

Initial aversion (unpleasantness, pain)-
Respiratory effects (difficulty breathing)
Behavioural effects (convulsions, injuries sustained while flapping)
Identification of DOAs
Human error (monitoring)

Question 10

What needs to be monitored in poultry lairage

Answer 10

Avoid long waiting (DOAs)
Ventilation temperature
Humidity

Question 11

What needs to happen for electrical stunning to be effective in poultry

Answer 11

water bath supplied with sufficient current
good contact between the legs of the birds and the shackle line
heads must be completely immersed in the bath