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Jessica Walker INTRODUCTION TO ANIMAL WELFARE
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Welfare is an individuals state as regards to its attempts to cope with its environment (Broom 1986). ‘The state of complete mental and physical health where the animal in is harmony with it’s environment’ (Hughes 1976) WHAT IS ANIMAL WELFARE
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Body repair systems. Immunological defences. Emergency physiological responses. Variety of behavioural responses. ATTEMPTS TO COPE RELATE TO:
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3 Concepts Physical health Mental health (including how it feels) Capability to act naturally WHAT IS ANIMAL WELFARE?
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RELATIONSHIP BETWEEN THE THREE CONCEPTS
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THE ANIMAL WELFARE ACT 1999
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Freedom from Hunger and Thirst Freedom from Discomfort Freedom from Pain Freedom to express Normal Behaviour Freedom from Fear and Distress THE FIVE FREEDOMS
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ANIMAL WELFARE 5 FREEDOMS IN THE WILD… Hunger and thirst Scarce food / water Thermal and physical discomfort Poor weather Injury and disease No veterinary treatment Normal behaviour Killing of prey Fear and distress Predators
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Welfare science considers effects of humans on the animal from the animal’s point of view Welfare ethics considers human actions towards animals Welfare legislation considers how humans must treat animals ANIMAL SCIENCE VS ANIMAL ETHICS VS ANIMAL LAW
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WHAT IS THE WELFARE OF THE FOLLOWING CATS? A pet cat that has an infected wound - owners noticed a problem two weeks ago but failed to take the cat for veterinary treatment. A pet cat that has an infected wound - the cat had been missing for two weeks but when it returned the owners took it for veterinary treatment.
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Both cats have the same welfare status - Welfare science shows no difference. Different human care - Owners have different moral behaviour - Ethics not science WELFARE OF ANIMALS VERSUS HUMAN CARE
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“Welfare defines the state of an animal as regards its attempts to cope with its environment.” (Fraser & Broom, 1990). HOW CAN WE ASSESS ANIMAL WELFARE SCIENTIFICALLY?
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WELFARE CONTINUUM: Overall summary of welfare status Good Poor
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ANIMAL WELFARE CRITERIA: PoorGood
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Hunger / Thirst Pain / Distress Injury / Disease Shelter Normal behaviour Overall WELFARE STATUS = FIVE FREEDOMS Poor Good
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Variety of normal behaviours are shown. Extent to which strongly preferred behaviours can be shown. Physiological indicators of pleasure. Behavioural indicators of pleasure. MEASURES OF GOOD WELFARE
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Decreased life expectancy. Decreased ability to grow or breed. Body damage. Disease. Immunosuppression. Physiological attempts to cope. Behavioural attempts to cope. Self narcotisation. Extent of behavioural aversion shown. Extent of suppression of normal behaviour Extent to which normal physiological processes and anatomical development are prevented. MEASURES OF POOR WELFARE
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Attempt to solve this problem by designing environmental enrichment that can… Reproduce good features of natural environment Eliminate negative features of natural environment BUT… a very difficult balance to achieve Short term vs. long term welfare Legal considerations / restrictions Public perceptions (e.g. feeding live prey) ENRICHMENT AND ANIMAL WELFARE
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Food hiding increases foraging in Asian Elephants Less stereotypic pacing in polar bears with increased foraging opportunities Laying Scent trails reduces apathy/immobility in captive reptiles Provision of suspended swings, barrels and platforms encourages play in chimpanzees Training sessions associated with reduced performance of stereotypic behaviour in sea lions RESEARCH
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PART TWO: ASSESSING WELFARE USING BEHAVIOUR.
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Freedom from Hunger and Thirst Freedom from Discomfort Freedom from Pain Freedom to express Normal Behaviour Freedom from Fear and Distress THE FIVE FREEDOMS
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Alertness Curiosity Range of activities Interaction with other members of the herd/flock Interaction with humans / Aversion to humans Play BEHAVIOURAL INDICATORS - THE ‘NORMAL’ ANIMAL:
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THE “NORMAL” ANIMAL - ALERTNESS
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THE “NORMAL” ANIMAL - CURIOUS
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THE “NORMAL” ANIMAL - RANGE OF ACTIVITIES
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THE “NORMAL” ANIMAL - INTERACTION WITH OTHER MEMBERS OF THE GROUP
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THE “NORMAL” ANIMAL - INTERACTION WITH HUMANS
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THE “NORMAL” ANIMAL - PLAY
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1.Limited range of activity 2.Panting and/or sweating 3.Huddling or shivering 4.Depression 5.Abnormal fear or aggression towards humans 6.Stereotypies and other behavioural abnormalities BEHAVIOURAL INDICATORS OF POOR WELFARE:
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RESTRICTION OF “NORMAL” Sow Stall
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The animals behaviour can tell us about their welfare. If the animals behaviour indicates poor welfare we need to investigate causes and possible solutions. SUMMARY
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World Society for the Protection of Animals (WSPA): http://www.wspa- international.org/wspaswork/education/concepts-animal- welfare-modules.aspx REFERENCES/ACKNOWLEDGEMENT:
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QUESTIONS?
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