Abnormal/Problematic Behavior

Meta-analysis on the effect of foraging on feather pecking and feather coverage

Feather pecking (FP) has been a longstanding concern in avian welfare because of its potential to inflict harm on bird plumage. Researchers have proposed the redirection hypothesis in studies investigating factors influencing FP, positing that pecking feathers serve as a...

Year Published: 2025Topics: Abnormal/Problematic Behavior, Husbandry & ManagementAnimal Type: Bird, Chicken

Citation: Wen, J., Yang, S., Zhu, J. et al. 2025. Meta-analysis on the effect of foraging on feather pecking and feather coverage. Applied Animal Behaviour Science 285, 106584.

Increasing cage complexity reduces abnormal behaviours in farmed blue foxes

We studied the long-term effects of biweekly rotated enrichment objects and a permanent shelter screen on abnormal behaviour, daily activity, and stress physiology in juvenile female blue foxes (aged 3–9 months). The experiment lasted seven months, from August to February, following...

Year Published: 2025Topics: Abnormal/Problematic Behavior, Environmental EnrichmentAnimal Type: Other Animal

Citation: Ojala, E. A., Valros, A., Mononen, J. 2025. Increasing cage complexity reduces abnormal behaviours in farmed blue foxes. Applied Animal Behaviour Science 284, 106559.

Elastic motivation for circuit running behaviour in captive African striped mice Rhabdomys dilectus: A consumer demand approach

Captive environments often result in repetitive locomotor behaviours in animals, yet the motivation for these behaviours remains poorly understood. We investigated whether circuit running in African striped mice Rhabdomys dilectus represents a necessary coping mechanism or a flexible, cost-sensitive behaviour,...

Year Published: 2025Topics: Abnormal/Problematic BehaviorAnimal Type: Other Rodent, Rodent

Citation: Hartman, K.-J., Joshi, S., Pillay, N. 2025. Elastic motivation for circuit running behaviour in captive African striped mice Rhabdomys dilectus: A consumer demand approach. Applied Animal Behaviour Science 289, 106693.

Behavioral or nutritional drive: Which motivation affects rates of food grinding in CD1 mice?

Wire mouse feeders used in laboratory mouse cages typically hold enough food to feed 5 mice for two weeks. However, some mice gnaw the food provided into powder, which they do not ingest. The ground-up food fills the cage, resulting...

Year Published: 2025Topics: Abnormal/Problematic Behavior, Husbandry & ManagementAnimal Type: Mouse, Rodent

Citation: Gaskill, B. N., Davis, H., Gosselin, R. P. et al. 2025. Behavioral or nutritional drive: Which motivation affects rates of food grinding in CD1 mice? Applied Animal Behaviour Science 284, 106533.

Investigating the motivations of repetitive barrier interactions in Pogona vitticeps

Considerable research has demonstrated that the effective management of repetitive behaviours such as bar-biting and pacing relies upon understanding their motivations; however, this same research has revealed that repetitive behaviours can have a diverse array of motivations. In reptiles, repetitive...

Year Published: 2025Topics: Abnormal/Problematic BehaviorAnimal Type: Lizard, Reptile

Citation: Denommé, M., Tattersall, G. J. 2025. Investigating the motivations of repetitive barrier interactions in Pogona vitticeps. Applied Animal Behaviour Science 283, 106484.

Analysis of risk factors of feather pecking injurious behavior in experimentally raised Yangzhou goslings in China (2025)

Feather pecking can influence the welfare and health concerns of all farmed poultry and affect production and economic aspects. Although some information is available about feather pecking behavior in chickens and ducks, the risk factors of feather pecking in goslings...

Year Published: 2025Topics: Abnormal/Problematic BehaviorAnimal Type: Bird, Fowl

Citation: Wang, M., Wang, G., Gu, W. et al. 2025. Analysis of risk factors of feather pecking injurious behavior in experimentally raised Yangzhou goslings in China. Animals 15(5), 616.

Risk factors for barbering in laboratory mice (2025)

Barbering is a common abnormal behavior in laboratory mice, where mice pluck their own fur and/or the fur or whiskers of their cage mates. Barbering mice are a concern for welfare and research quality, as well as serving as a...

Year Published: 2025Topics: Abnormal/Problematic BehaviorAnimal Type: Mouse, Rodent

Citation: Ratuski, A. S., Theil, J. H., Ahloy-Dallaire, J. et al. 2025. Risk factors for barbering in laboratory mice. Scientific Reports 15(1), 7456.

What are the most prevalent welfare issues for pet small mammals? (2025)

The welfare of pet small mammals is an understudied, but growing research topic in the UK and Europe. We surveyed European veterinary experts who each rated severity and prevalence of a large number of issues in the eight most common...

Year Published: 2025Topics: Abnormal/Problematic Behavior, Handling, HousingAnimal Type: Guinea Pig, Hamster, Mouse, Other Rodent, Rabbit, Rodent

Citation: Fenton, L., Benato, L., Mancinelli, E. et al. 2025. What are the most prevalent welfare issues for pet small mammals? Animals 15(10), 1423.

Shifts in naturalistic behaviors induced by early social isolation stress are associated with adult binge-like eating in female rats

Binge eating (BE) is a highly pervasive maladaptive coping strategy in response to severe early life stress such as emotional and social neglect. BE is described as repeated episodes of uncontrolled eating and is tightly linked with comorbid mental health...

Year Published: 2024Topics: Abnormal/Problematic Behavior, Social Housing & CompanionshipAnimal Type: Rat, Rodent

Citation: Simon, T. B., Sierra, J., Williams, A. et al. 2024. Shifts in naturalistic behaviors induced by early social isolation stress are associated with adult binge-like eating in female rats. Frontiers in Behavioral Neuroscience 18.

Less activity means improved welfare? How pair housing influences pinyon jay (Gymnorhinus cyanocephalus) behaviour

The activity level and specific behaviours exhibited by captive animals are crucial indicators of welfare. Stereotypies, or repetitive behaviours that have no apparent function or goal, are performed by animals experiencing poor conditions in their environment and indicate welfare concerns....

Year Published: 2024Topics: Abnormal/Problematic Behavior, Social Housing & CompanionshipAnimal Type: Bird, Other Bird

Citation: Wolff, L. M., Stevens, J. R. 2024. Less activity means improved welfare? How pair housing influences pinyon jay (Gymnorhinus cyanocephalus) behaviour. Animal Welfare 33, e49.