Author Archives: Marc

Poultry Red Mites

This post includes the following sections:What is the poultry red mite?SignsMechanismsRisk factorsTreatmentImportanceFurther readingReferences . What is the poultry read mite? Poultry red mite (Dermanyssus gallinae) was first described by De Geer in 1778. It belongs to the sub-class Arachnida. The … Continue reading

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Risk factors of feather pecking

Risk factors of feather pecking are described below. A figure is showing how risk factors relate to feather pecking, and a more detailed list is given of subsections.Main pages below:A good startHousingManagementFeedHealthClimateBird-related factors. The pages have the following further subdivision: … Continue reading

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Mechanism of feather pecking

This post includes the following sections:Redirected foraging behaviourHow does it develop?Triggers and stressFurther reading Redirected foraging behaviour Junglefowl – ancestors of the modern chicken – spend more than 60% of their time foraging. This food-searching behaviour comprises scratching the ground … Continue reading

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Signs of injurious feather pecking

This post includes the following sections:Feather pecking behaviourFeather damageDamaged feathers caused by the housing systemMoult or damage?Feather scoringTraining materialFurther reading. Feather pecking behaviour The sooner injurious pecking is detected, the sooner interventions can be put in place, lowering the risk … Continue reading

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What is injurious feather pecking?

This post includes the following sections:DescriptionGentle feather peckingSevere feather peckingCannibalistic peckingVent peckingAggressive peckingFurther reading. Description Injurious pecking behaviour is considered an inappropriate pecking activity directed toward conspecifics and involves repeated pecking at the feathers or skin of a victimized bird. … Continue reading

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End-of-lay

What is end-of-lay? Laying hens are transported 3 times in their life: from the hatchery they are transported as day-old chicks to the rearing house. At 17-18 weeks of age they are transported from the rearing house to the layer … Continue reading

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Animation of Banksy’s jumping orca

In the summer of 2015 the graffity artist Banksy opened a theme park called Dismaland. One of the exhibits showed a sculpture of a big killer whale jumping out of a toilet bowl, through a hoop and into a plastic … Continue reading

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Protected: WUR logo – Forum animation

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Towards long(er) pig tails: New strategy to solve animal welfare problems

Bracke, M.B.M. 2010. Towards long(er) pig tails: New strategy to solve animal welfare problems. In: Lidfors, L., Blokhuis, H., Keeling, L., Proceedings of the 44th Congress of the ISAE, August 4-7 2010, Uppsala, Sweden, p. 135. Despite a considerable scientific … Continue reading

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Expert elicitation in animal welfare risk assessment – methods and limitations

Bracke, M.B.M. 2010. Expert elicitation in animal welfare risk assessment – methods and limitations. In: Lidfors, L., Blokhuis, H., Keeling, L., Proceedings of the 44th Congress of the ISAE, Uppsala, Sweden, August 4-7 2010, p. 237 (Invited presentation for the … Continue reading

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