Proposed attributes and levels
Attributes
Levels No. of levels
Price($/dozen)
$470
$690 5
$650
$490
$950
Use of cage
Caged
Cage free 2
Certification
– Non
– SPCA Animal Welfare certification
– SPCA Animal Welfare & Organic certification 3
Access to outdoors
Non
Yes 2
Mortality rate
– 5.39%
– 9.52%
– 8.55%
– 7.19%
– 8.68% 5
Indoor stocking density
550cm2 per hen
1,111.1cm2 per hen
1,428.6cm2 per hen
750cm2 per hen
1,666.7cm2 per hen 5
Production systems
Battery
Barn
Colony
Free range
Organic 5
Example of a layout for the choice experiment.
Alternatives
Attributes
Option A
Option B
Option C
Option D
Option E
Non-buy-Option
Use of cage
Caged
Cage free
Cage free
Caged
Cage free
If these were the only option available at this time, I would not buy eggs
Certification
Non
SPCA Animal Welfare
SPCA Animal Welfare
Non
SPCA Animal Welfare & Organic certification
Production systems
Battery
Free range
Barn
Colony
Organic
Mortality rate
5.39%
9.52%
8.55%
7.19%
8.68%
Access to outdoors
Non
Yes
Non
Non
Yes
Indoor stocking density
550cm2 per hen
1,111.1cm2 per hen
1,428.6cm2 per hen
750cm2 per hen
1,666.7cm2 per hen
Price
$470
$690
$650
$490
$950
CHOICE
❏
❏
❏
❏
❏
❏