Body Modification/Mutilation

The influence of environmental conditions and husbandry practices on goat welfare

Goat (Capra hircus) welfare is an important issue in any farming system. The aim of the study was a comprehensive analysis of the impact of environmental factors and farming practices on the welfare of goats, with particular attention to physical,...

Year Published: 2026Topics: Body Modification/Mutilation, Environmental Enrichment, Human-Animal Interaction, Husbandry & Management, Rearing & Weaning, Social Housing & Companionship, Welfare AssessmentAnimal Type: Goat

Citation: Pilarczyk, R., Bąkowska, M., Tomza-Marciniak, A. et al. 2026. The influence of environmental conditions and husbandry practices on goat welfare. Animals 16(5).

Nondestructive larval genotyping of Danio rerio for mitochondrial and nuclear DNA genetics

The rapid advancement of nuclear and mitochondrial genomic editing tools has created an urgent need for efficient, nonlethal larval genotyping methods in zebrafish (Danio rerio) research. This study optimizes and validates a nondestructive proteinase K digestion method for mitochondrial and...

Year Published: 2025Topics: Body Modification/MutilationAnimal Type: Fish, Zebrafish

Citation: Mitra, K. S., Holmberg, S. R., Mota, M. et al. 2025. Nondestructive larval genotyping of Danio rerio for mitochondrial and nuclear DNA genetics. Zebrafish 22(6), 197–207.

Main husbandry practices and health conditions that affect welfare in calves: A narrative review

Calf welfare is critically influenced by early-life husbandry practices and health conditions. This narrative review synthesizes current evidence on key management practices affecting calf welfare, including calving, colostrum intake, milk feeding, water provision, weaning, housing, mutilations, and transport. A structured...

Year Published: 2025Topics: Body Modification/Mutilation, Housing, Husbandry & Management, Rearing & Weaning, Relocation & TransportAnimal Type: Cattle

Citation: Mainau, E., Goby, L., Manteca, X. 2025. Main husbandry practices and health conditions that affect welfare in calves: A narrative review. Animals 15(21).

Triploid Atlantic salmon are physiologically disadvantaged at larger body sizes

Triploid Atlantic salmon are sterile and used in aquaculture to prevent escapees from breeding in the wild. Meanwhile, triploids suffer poor animal welfare in the latter marine growth phase. Previous experiments have mainly tested smaller fish, and physiological differences between...

Year Published: 2025Topics: Body Modification/MutilationAnimal Type: Fish, Salmon

Citation: Hvas, M., Morin, A., Hansen, T. J. 2025. Triploid Atlantic salmon are physiologically disadvantaged at larger body sizes. Scientific Reports 16(1), 770.

Feather pecking in non-beak-trimmed and beak-trimmed laying hens on commercial farms with aviaries

Severe feather pecking (SFP) is a major animal welfare problem in layers. It results in pain and injuries in the affected animal. SFP is a behavioral disorder and should not be confused with aggressive pecking. The aim of our study...

Year Published: 2021Topics: Abnormal/Problematic Behavior, Body Modification/Mutilation, Environmental Enrichment, Husbandry & Management, Stocking DensityAnimal Type: Bird, Chicken

Citation: Schwarzer, A., Plattner, C., Bergmann, S. et al. 2021. Feather pecking in non-beak-trimmed and beak-trimmed laying hens on commercial farms with aviaries. Animals 11(11).

Feather pecking and cannibalism in non-beak-trimmed laying hen flocks—Farmers’ perspectives

Pecking-related problems are common in intensive egg production, diminishing hen welfare and production performance, and negatively affecting sustainability. Beak trimming is a common practice to control these problems, but in Finland beak trimming is prohibited. Finnish egg producers have decades-long...

Year Published: 2019Topics: Abnormal/Problematic Behavior, Body Modification/Mutilation, Husbandry & ManagementAnimal Type: Bird, Chicken

Citation: Kaukonen, E., Valros, A. 2019. Feather pecking and cannibalism in non-beak-trimmed laying hen flocks—Farmers’ perspectives Animals 9(2).

Cause and prevention of injurious pecking in chickens

This collection features three peer-reviewed literature reviews on feather-pecking in poultry. The first chapter describes the three main forms of injurious pecking (IP) in poultry: tissue pecking (TP), aggressive pecking (AP) and feather-pecking (FP). It discusses the origin of severe...

Year Published: 2021Topics: Abnormal/Problematic Behavior, Body Modification/Mutilation, Environmental Enrichment, Husbandry & ManagementAnimal Type: Bird, Chicken

Citation: van Staaveren, N., Harlander, A. 2021. Cause and prevention of injurious pecking in chickens. In N. van Staaveren, A. Harlander, D. D. McKeegan, et al. (Eds.), Instant Insights: Feather-pecking in poultry. Burleigh Dodds Science Publishing.

Relationships between beak condition, preening behavior and ectoparasite infestation levels in laying hens

The effects of beak condition on ectoparasite populations and preening in laying hens were investigated. Beak-trimmed and beak-intact caged Hy-Line W-36 hens were infested with either chicken body lice or northern fowl mites using a 2 × 2 factorial design...

Year Published: 2015Topics: Body Modification/Mutilation, Natural BehaviorAnimal Type: Bird, Chicken

Citation: Vezzoli, G., Mullens, B. A., Mench, J. A. 2015. Relationships between beak condition, preening behavior and ectoparasite infestation levels in laying hens. Poultry Science 94(9), 1997–2007.

Beak trimming reduces feeding efficiency of hens

The ability of beak-trimmed and intact laying hens to ingest feed pellets was examined by highspeed video filming of feeding birds. The birds were exposed to either a deep layer of pellets or a single layer of pellets. In the...

Year Published: 2004Topics: Body Modification/Mutilation, Natural BehaviorAnimal Type: Bird, Chicken

Citation: Prescott, N. B., Bonser, R. H. C. 2004. Beak Trimming Reduces Feeding Efficiency of Hens. Journal of Applied Poultry Research 13(3), 468–471.

Neurobiological basis of sensory perception: welfare implications of beak trimming

The practice of beak trimming in the poultry industry occurs to prevent excessive body pecking, cannibalism, and to avoid feed wastage. To assess the welfare implications of the procedure, an emphasis of this paper has been placed on the anatomical...

Year Published: 2007Topics: Body Modification/MutilationAnimal Type: Bird, Chicken

Citation: Kuenzel, W. J. 2007. Neurobiological Basis of Sensory Perception: Welfare Implications of Beak Trimming. Poultry Science 86(6), 1273–1282.