Animal Behavior and Welfare Studies

This study monitors the behavior and stress levels of aged rhesus macaques after relocation to a rescue center, finding that enrichment programs improve welfare by increasing activity and reducing stress behaviors.

This study tests the safety and validity of insertable cardiac monitors in captive baboons and identifies predictors of heart rate and activity.

This study examines how negative arousal in lambs is reflected in their vocalizations and physiological responses, finding that bodily activation correlates with call characteristics, while eye temperature changes depend on behavior and individual traits.

This study operationally defines restlessness in bulls as behavior transitions and quantifies it across husbandry systems, finding less restlessness in pasture systems.

IntelliProfiler 2.0 is an R pipeline for analyzing RFID tracking data from group-housed mice, capturing circadian and sex-dependent behavioral patterns with improved reproducibility.

This study introduces a medical training program with an application tunnel to reduce stress in mice during frequent intraperitoneal injections and blood sampling.

This study documents behavioral changes in an old rhesus macaque, suggesting possible signs of cognitive decline and physical deterioration, but without confirmed cognitive dysfunction.

This study identifies visual stimuli perceived as threatening by goats using a looking-time paradigm, finding that predatory reptiles, especially snakes, elicit longer gaze duration.

This study finds that beak wiping stereotypies in captive house sparrows correlate with neophobia and are reduced by environmental enrichment.

IntelliProfiler analyzes multi-animal behavior in home cages using RFID data to quantify locomotion and social interactions, revealing sex, age, and paternal-aging effects on social behavior.

This paper introduces an automated system for continuously monitoring songbird weight without disrupting behavior, revealing physiological patterns and validating its sensitivity for long-term studies.

This study assesses fish welfare in small-scale fixed-net fisheries by evaluating behavioural and physiological indicators across four species.

The paper tests various protocols for a conditioned place preference test in mice to assess experimental procedure severity but finds none produce reliable results.

This study examines how temperament affects training efficiency in red brocket deer, finding that more reactive animals had poorer training outcomes.

This study measures corticosterone levels in budgerigars to assess stress from human presence, restraint, and social stress transmission, finding that repeated handling and restraint cause significant stress, while social stress transmission is limited.

The paper analyzes nocturnal behavior patterns in ungulates across zoos, finding that younger animals show increased interruptions in standing phases and high coordination between animals in the same enclosure.

This study validates the IP ratio as a non-invasive indicator of welfare in laying hens, showing it is influenced by housing systems but not light or age.

This study examines grooming behavior in rewilded Highland cattle, finding that environmental factors like horseflies and temperature have limited effects on grooming patterns.

This study examines if naturalistic enclosures improve the behavior and welfare of captive bearded dragons compared to standard enclosures, finding mixed results.

This study applies social network analysis to AI-assisted automated monitoring data to analyze social structures in pigs, revealing changes in group dynamics and individual traits over time.

This study measures the maximum vertical height hens reach during wing flapping using a depth camera, finding an average of 51.0 cm with no physical correlates.

This study evaluates welfare indicators for companion parrots using a Delphi consultation survey, identifying 73 indicators and recommending suitable species for companionship.

The paper compares gene expression in captive and wild shrew brains, finding hundreds of differentially expressed genes linked to neurodegenerative pathways and ribosomal proteins.

The paper assesses obesity in captive Asian elephants in China by analyzing body condition and related factors, finding over 70% are overweight or obese, with insufficient outdoor time linked to obesity.

This review identifies factors influencing public perceptions of zoo animal welfare and their effects on attitudes, experiences, and behaviors, recommending improvements for future research.

This study assesses cortisol and testosterone in wool samples of Australian Merino Rams to evaluate non-invasive hormone assessment and its correlation with heat stress.

This study evaluates machine learning algorithms for predicting lameness in dairy cattle using accelerometer data, finding that ROCKET performs best for classifying cows needing claw trimming but struggles with disease classification.

This study pharmacologically validates an attention bias test for broiler chickens to measure anxiety using behavioral latency measures.

This study examines how pair housing affects enclosure use, basking, and hiding behavior in tokay geckos, finding that pair housing reduces movement and hiding in response to human presence and may improve welfare.

This review identifies potential welfare indicators for companion parrots but highlights issues with validity and bias in existing studies.