Chicken

Laying hen’s mobility is impaired by keel bone fractures and does not improve with paracetamol treatment

Keel bone fractures (KBF) in laying hens pose a severe problem for animal welfare as they are likely to be associated with pain and suffering. Furthermore, they are suspected to hinder or restrict hens in their performance of natural species-specific...

Year Published: 2019Topics: AnalgesiaAnimal Type: Bird, Chicken

Citation: Rentsch, A. K., Rufener, C. B., Spadavecchia, C. et al. 2019. Laying hen's mobility is impaired by keel bone fractures and does not improve with paracetamol treatment. Applied Animal Behaviour Science 216, 19-25.

Understanding how infrared beak treatment affects the beak tissue and the healing response of brown and white feathered layer pullets

Infrared beak treatment has less of a negative impact on laying hen welfare compared to other methods of beak treatment; however, it is still not fully understood how infrared beak treatment affects the beak tissue during the first few days...

Year Published: 2019Topics: Body Modification/MutilationAnimal Type: Bird, Chicken

Citation: Struthers, S., Gupta, A., Gomis, S. et al. 2019. Understanding how infrared beak treatment affects the beak tissue and the healing response of brown and white feathered layer pullets. Animals 9(9), 665.

How can we assess positive welfare in ruminants?

Until now, most research has focused on the development of indicators of negative welfare, and relatively few studies provide information on valid, reliable, and feasible indicators addressing positive aspects of animal welfare. However, a lack of suffering does not guarantee...

Year Published: 2019Topics: Welfare AssessmentAnimal Type: Cattle, Chicken, Equine, Fowl, Goat, Pig, Sheep

Citation: Mattiello, S., Battini, M., De Rosa, G. et al. 2019. How can we assess positive welfare in ruminants? Animals 9(10), 758.

Effects of LED light color and intensity on feather pecking and fear responses of layer breeders in natural mating colony cages

Natural mating colony cages for layer breeders have become commonplace for layer breeders in China. However, feather pecking (FP) and cannibalism are prominent in this system. The objective of this study was to investigate the effects of four light-emitting diode...

Year Published: 2019Topics: Husbandry & ManagementAnimal Type: Bird, Chicken

Citation: Shi, H., Li, B., Tong, Q. et al. 2019. Effects of LED light color and intensity on feather pecking and fear responses of layer breeders in natural mating colony cages. Animals 9(10), 814.

Efficacy of a novel mechanical cervical dislocation device in comparison to manual cervical dislocation in layer chickens

The main objective of this study was to assess the efficacy of mechanical cervical dislocation using the Koechner Euthanasia Device Model C (KED) in comparison to manual cervical dislocation in layer chickens. Laying hens and/or roosters in three different age...

Year Published: 2019Topics: EuthanasiaAnimal Type: Bird, Chicken

Citation: Bandara, R. M.A.S., Torrey, S., Turner, P. V. et al. 2019. Efficacy of a novel mechanical cervical dislocation device in comparison to manual cervical dislocation in layer chickens. Animals 9(7), 407.

Effect of simple and low-cost enrichment items on behavioral, clinical, and productive variables of caged laying hens

Housing layers in battery cages is a practice still used by many countries but it has been criticized because of its influence on behavioral repertoire of birds. We investigated whether simple and affordable enrichment devices alone impact behavior, foot condition...

Year Published: 2019Topics: Environmental EnrichmentAnimal Type: Bird, Chicken

Citation: Frediani, M. H., Pizzutto, C. S., Alves, M. B. R. et al. 2019. Effect of simple and low-cost enrichment items on behavioral, clinical, and productive variables of caged laying hens. Journal of Applied Animal Welfare Science 22(2), 139-148.

Sham dustbathing in cages by subordinate hens is increased by a partition providing isolation

Subordinate hens express less sham dustbathing in cages than higher ranked hens, their bouts often being disturbed by a higher ranked hen. However, seeing conspecifics seems to encourage this behaviour by hens. So to avoid being disturbed, a partition between...

Year Published: 2019Topics: Environmental Enrichment, HousingAnimal Type: Bird, Chicken

Citation: Moroki, Y. 2019. Sham dustbathing in cages by subordinate hens is increased by a partition providing isolation. Applied Animal Behaviour Science 210, 68-72.

The effect of supplementary ultraviolet wavelengths on broiler chicken welfare indicators

Qualities of the light environment are important for good welfare in a number of species. In chickens, UVA light is visible and may facilitate flock interactions. UVB wavelengths promote endogenous vitamin D synthesis, which could support the rapid skeletal development...

Year Published: 2018Topics: Husbandry & ManagementAnimal Type: Bird, Chicken

Citation: James, C., Asher, L., Herborn, K. et al. 2018. The effect of supplementary ultraviolet wavelengths on broiler chicken welfare indicators. Applied Animal Behaviour Science 209, 55-64.

Does grouping environmental enrichments together affect the way they are used by commercially housed broiler chickens?

Identifying the most attractive ways of presenting environmental enrichments in commercial broiler housing may encourage use and optimise their effectiveness. This study investigated the effect of grouping straw bales (SB), oat hulls (OH; as a dustbathing substrate) and pecking chain...

Year Published: 2019Topics: Environmental EnrichmentAnimal Type: Bird, Chicken

Citation: Baxter, M., O'Connell, N. E. 2019. Does grouping environmental enrichments together affect the way they are used by commercially housed broiler chickens? Applied Animal Behaviour Science 210, 52-59.

Examining affective structure in chickens: valence, intensity, persistence and generalization measured using a Conditioned Place Preference Test

When measuring animals' valenced behavioural responses to stimuli, the Conditioned Place Preference (CPP) test goes a step further than many approach-based and avoidance-based tests by establishing whether a learned preference for, or aversion to, the location in which the stimulus...

Year Published: 2018Topics: Emotion, Pain, & SentienceAnimal Type: Bird, Chicken

Citation: Paul, E. S., Edgar, J. L., Caplen, G. et al. 2018. Examining affective structure in chickens: valence, intensity, persistence and generalization measured using a Conditioned Place Preference Test. Applied Animal Behaviour Science 207, 39-48.