Bird

Will the white blood cells tell? A potential novel tool to assess broiler chicken welfare

This study assessed qualitative and quantitative leukocyte evaluation as potential broiler chicken welfare indicators, contributing to the limited literature on white blood cell (WBC) morphology as a diagnostic tool for welfare. Broiler chicken welfare within four poultry houses (PH) 1...

Year Published: 2024Topics: Welfare AssessmentAnimal Type: Bird, Chicken

Citation: Ribeiro, L. R. R., Sans, E. C. de O., Santos, R. M. et al. 2024. Will the white blood cells tell? A potential novel tool to assess broiler chicken welfare. Frontiers in Veterinary Science 11.

A comparison of LED with fluorescent lighting on the stress, behavior, and reproductive success of laboratory zebra finches (Taeniopygia guttata)

There are limited evidence-based husbandry recommendations for laboratory zebra finches (Taeniopygia guttata), including appropriate light sources. Light-emitting diode (LED) technology has been shown to improve circadian regulation and reduce stress in some laboratory animal species, such as mice and rats,...

Year Published: 2024Topics: Husbandry & ManagementAnimal Type: Bird, Finch

Citation: Backx, A. G., Wu, A., Tanner, A. et al. 2024. A comparison of LED with fluorescent lighting on the stress, behavior, and reproductive success of laboratory zebra finches (Taeniopygia guttata). JAALAS 63(3), 238–250.

Effects of restraint stress on circulating corticosterone and met enkephalin in chickens: Induction of shifts in insulin secretion and carbohydrate metabolism

This study examined the effects of acute restraint stress in the presence or absence of naltrexone on the circulating concentrations of insulin, glucose, Met-enkephalin and corticosterone in 14-week-old chickens [design: 2 sex × 2 stress/non-stress × 2 +/− naltrexone]. In...

Year Published: 2024Topics: Biological Sampling & Physiological Measurement, RestraintAnimal Type: Bird, Chicken

Citation: Scanes, C. G., Pierzchała-Koziec, K., Gajewska, A. 2024. Effects of restraint stress on circulating corticosterone and met enkephalin in chickens: Induction of shifts in insulin secretion and carbohydrate metabolism. Animals 14(5), 752.

Making the most of life: Environmental choice during rearing enhances the ability of laying hens to take opportunities

The potential of aviary housing for improving laying hen (Gallus gallus domesticus) welfare will be constrained if rearing conditions limit the hens' behavioral ability to take opportunities. Incorporating theories on developmental plasticity and animal agency, this study aimed to determine:...

Year Published: 2024Topics: Environmental Enrichment, Rearing & WeaningAnimal Type: Bird, Chicken

Citation: Skånberg, L., Holt, R. V., Newberry, R. C. et al. 2024. Making the most of life: Environmental choice during rearing enhances the ability of laying hens to take opportunities. Frontiers in Veterinary Science 11.

Resource choice during ontogeny enhances both the short- and longer-term welfare of laying hen pullets

We hypothesised that resource choice during early life contributes to both current and longer-term beneficial effects on animal welfare. We investigated this hypothesis in a longitudinal cross-over experiment with laying hen pullets (Gallus gallus domesticus) reared in pens with one...

Year Published: 2024Topics: Environmental Enrichment, Husbandry & ManagementAnimal Type: Bird, Chicken

Citation: Holt, R. V., Skånberg, L., Keeling, L. J. et al. 2024. Resource choice during ontogeny enhances both the short- and longer-term welfare of laying hen pullets. Scientific Reports 14(1), 3360.

An interactive feeder to induce and assess emotions from vocalisations of chickens

Understanding the emotional states of animals is a long-standing research endeavour that has clear applications in animal welfare. Vocalisations are emerging as a promising way to assess both positive and negative emotional states. However, the vocal expression of emotions in...

Year Published: 2024Topics: Emotion, Pain, & Sentience, Environmental Enrichment, VocalizationAnimal Type: Bird, Chicken

Citation: Golfidis, A., Kriengwatana, B. P., Mounir, M. et al. 2024. An interactive feeder to induce and assess emotions from vocalisations of chickens. Animals 14(9), 1386.

Exploration of skin redness and immunoglobulin A as markers of the affective states of hens

Non-invasive markers of affective states can help understanding animals' perception of situations and improving their welfare. These markers are scarce in avian species. In this study, we investigate the potential relation between alterations in facial skin redness in hens and...

Year Published: 2024Topics: Emotion, Pain, & SentienceAnimal Type: Bird, Chicken

Citation: Soulet, D., Jahoui, A., Guabiraba, R. et al. 2024. Exploration of skin redness and immunoglobulin A as markers of the affective states of hens. Applied Animal Behaviour Science 274, 106268.

Social reinforcement guides operant behaviour and auditory learning in a songbird

Motivation to seek social interactions is inherent to all social species. For instance, even with risk of disease transmission in a recent pandemic, humans sought out frequent in-person social interactions. In other social animals, socialization can be prioritized even over...

Year Published: 2024Topics: Social Housing & CompanionshipAnimal Type: Bird, Finch

Citation: Macedo-Lima, M., Fernández-Vargas, M., Remage-Healey, L. 2024. Social reinforcement guides operant behaviour and auditory learning in a songbird. Animal Behaviour 210, 127–137.

An effective environmental enrichment framework for the continual improvement of production animal welfare

Substrates and objects are provided to farm animals on the assumption that they improve animal welfare by enriching the environment, but these often fail to consider the extent to which an environmental enrichment (EE) improves animal welfare, if at all....

Year Published: 2023Topics: Environmental EnrichmentAnimal Type: Cattle, Chicken, Equine, Fowl, Goat, Pig, Sheep

Citation: Taylor, P. S., Schrobback, P., Verdon, M. et al. 2023. An effective environmental enrichment framework for the continual improvement of production animal welfare. Animal Welfare 32, e14.

Cooped up: Refinement of a Gallus gallus domesticus environment

Providing an enriched species specific environment, coupled with the principles of the 3Rs (Refinement, Reduction and Replacement) is at the heart of the poulty team team at The Pirbright Institute. Periodically reviwed custom made cage designs (Raised Floor Pens) have...

Year Published: 2023Topics: Environmental Enrichment, HousingAnimal Type: Bird, Chicken

Citation: Matthews, B., New, R., Kanse, Y. M. et al. 2023. Cooped up: Refinement of a Gallus gallus domesticus environment. Animal Technology and Welfare 22(3), 228–230.