Stocking Density

Impact of different stocking densities on growth performance, welfare and physiology of Litopenaeus vannamei in RAS

Optimal stocking density allows shrimp farmers to maximise profit while maintaining animal welfare. To date, holistic assessments of chronic crowding stress effect on Litopenaeus vannamei are lacking regarding biological impairments, stress-related behaviors, and recovery capacity. Twelve tanks of a recirculation...

Year Published: 2026Topics: Stocking DensityAnimal Type: Crustacean, Invertebrate

Citation: Gamberoni, P., Bögner, M., Kreuz, E. et al. 2026. Impact of different stocking densities on growth performance, welfare and physiology of Litopenaeus vannamei in RAS. Scientific Reports 16(1), 9087.

Influence of group size on performance and tail biting in growing-finishing pigs with intact tails

This study investigated the effect of group size on tail damage and growth performance in growing-finishing pigs with intact tails. A total of 432 pigs were housed indoors on fully-slatted floors and assigned to either small (nine pigs per pen)...

Year Published: 2026Topics: Abnormal/Problematic Behavior, Stocking DensityAnimal Type: Pig

Citation: Archer, C., Forster, S., Hilbrands, A. et al. 2026. Influence of group size on performance and tail biting in growing-finishing pigs with intact tails. Animal Welfare 35, e1.

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).

Time-budget of horses reared for meat production: Influence of stocking density on behavioural activities and subsequent welfare

Horses reared for meat production can be kept in intensive breeding farms where they are housed in group pens at high stocking densities. The present study aimed to evaluate whether the expressed behaviours correlated with stocking density, and to compare...

Year Published: 2020Topics: Stocking DensityAnimal Type: Equine

Citation: Raspa, F., Tarantola, M., Bergero, D. et al. 2020. Time-budget of horses reared for meat production: Influence of stocking density on behavioural activities and subsequent welfare. Animals 10(8), 1334.

A scoping review: The impact of housing systems and environmental features on beef cattle welfare

Housing systems and environmental features can influence beef cattle welfare. To date, little information has been synthesized on this topic. The aim of this scoping review was to examine the relationship between housing and welfare status, so that beef cattle...

Year Published: 2020Topics: Environmental Enrichment, Housing, Husbandry & Management, Stocking DensityAnimal Type: Cattle

Citation: Park, R. M., Foster, M., Daigle, C. L. 2020. A scoping review: The impact of housing systems and environmental features on beef cattle welfare. Animals 10(4), 565.

Conspecific density and environmental complexity impact behaviour of turquoise killifish (Nothobranchius furzeri)

Fish models are essential for research in many biological and medical disciplines. With a typical lifespan of only 6 months, the turquoise killifish (Nothobranchius furzeri) was recently established as a time- and cost-efficient model to facilitate whole-life and multigenerational studies...

Year Published: 2020Topics: Environmental Enrichment, Stocking DensityAnimal Type: Fish, Other Fish

Citation: Thoré, E. S. J., Brendonck, L., Pinceel, T. 2020. Conspecific density and environmental complexity impact behaviour of turquoise killifish (Nothobranchius furzeri). Fish Biology 97(5), 1448–1461.

Social dynamics and behavior of zoo-housed red-footed tortoises at different housing densities

Within zoos, it is common for animals that are considered solitary to be housed with conspecifics. This may be due to a variety of factors such as spatial constraints within zoos, difficulties associated with transferring animals, breeding goals, and/or other...

Year Published: 2025Topics: Stocking DensityAnimal Type: Reptile, Turtle & Tortoise

Citation: O’Brien, S. L., Diaz, A., Cronin, K. A. 2025. Social dynamics and behavior of zoo-housed red-footed tortoises at different housing densities. Behavioural Processes 231, 105242.

Editorial: Fish welfare in aquaculture and research—where are we going?

Rapid technical developments are taking place in aquaculture, and its production is increasing globally every year by more than 4%. Research is the necessary foundation for politics to define reasonable regulations and recommend guidelines for aquaculture, but also the basis...

Year Published: 2025Topics: Rearing & Weaning, Stocking Density, Welfare AssessmentAnimal Type: Fish, Other Fish, Salmon, Trout, Zebrafish

Citation: Pietsch, C. 2025. Editorial: Fish welfare in aquaculture and research—where are we going? Animals 15(16), 2367.

Assessing the welfare of spiny lobsters and true lobsters in aquaria: Biology-informed best-practice guidelines for captive conditions

The welfare of decapod crustaceans held in captivity, whether in aquariums, holding facilities, seafood restaurants, supermarkets, or fishmongers, is attracting growing attention and concern. This review focuses on three species that are commonly found in European commercial environments: the European...

Year Published: 2025Topics: Body Modification/Mutilation, Husbandry & Management, Stocking DensityAnimal Type: Crustacean, Invertebrate

Citation: Fruscella, L., Elwood, R. W., Passantino, A. 2025. Assessing the welfare of spiny lobsters and true lobsters in aquaria: Biology-informed best-practice guidelines for captive conditions. Animals 15(16), 2397.

Personality traits of the territorial crustacean Chinese mitten crab (Eriocheir sinensis): Behavioral adaptations to environmental cues (2025)

Territorial crustaceans exhibit a complex set of personality traits and behavioral characteristics that are critical for their survival, growth, and overall welfare. This study aimed to systematically investigate the interplay between two essential personality traits—boldness and aggression—in Chinese mitten crabs...

Year Published: 2025Topics: Personality, Stocking DensityAnimal Type: Crustacean, Invertebrate

Citation: Fang, P., Sheng, S., Li, Y. et al. 2025. Personality traits of the territorial crustacean Chinese mitten crab (Eriocheir sinensis): Behavioral adaptations to environmental cues. Animals 15(5), 757.