Wk 2: Scientific Approaches to Welfare, Assessment, Motivation & Preferance Flashcards
What are the Five Freedoms of animal welfare?
Freedom from pain, injury or disease
Freedom from hunger and thirst
Freedom from discomfort
Freedom from fear and distress
Freedom to express normal behaviour - to avoid frustration
When was the Five Freedoms established?
1965
What are the two scientific approaches to the measure of animal welfare?
Motivation and Preference approach
Welfare Indicator approach
What is the assumption of the Motivation & Preference approach?
animal suffer if denied resources that they are strongly motivated to obtain, or if exposed to stimuli that they will work hard to avoid
How do you test the Motivation & Preference in practise?
Preference Test
- animals given a choice between two things (floor, bedding etc) and see which one the animal will go towards/use
What are the problems with the Preference Test approach?
- animal may show short-term preferences for things which harm them in the long-term
- preference test can only evaluate a limited number of alternatives at any one time (least worst option)
- there is little cost in visiting alternatives or exploring during preference test, and visit for these reasons may be misinterpreted as preference
Consumer demand theory
- based on human consumer behaviour
- we pay for more commodities that we price to be important
- we continue to pay for important commodities as the price rises
- we are more likely to suffer if we do not get important commodities
How can ‘demand curves’ for commodities be constructed?
based on how much we purchase/use them as their price/costs goes up
How can consumer demand theory be used for animals?
- pushing doors, levers, ect = the object
- more doors and levers the animal is willing to get through = the higher the object
Problems with using short-term tests of consumer demand
Animals may be able to gain access to (some of) the resources under test when they are outside the test situation, and so their behaviour in the test may not reflect ‘true’ demand
The duration of the test / exposure to resources may not be adequate to allow full expression of the associated behaviour (e.g. is 15s long enough for ‘proper’ social contact?)
What is an alternative approach to the short-term consumer demand test?
Make the test apart of the animals’ home environment (a ‘closed economy’)
Inelastic demand
a bench-mark for an important resource (eg. food)
Elastic demand
more flexible, less important (eg. social contact, an empty pen)