References

Effects of litter and additional enrichment elements on the occurrence of feather pecking in pullets and laying hens – A focused review

10.1002/vms3.184 · ExternalCitation · doi-reference

Behavioural and physiological effects of absence of ultraviolet wavelengths for domestic chicks

10.1006/anbe.2001.1842 · ExternalCitation · doi-reference

What makes free-range broiler chickens range? In situ measurement of habitat preference

10.1006/anbe.2003.2172 · ExternalCitation · doi-reference

Cutaneous sensory afferents recorded from the nervus intramandibularis of Gallus gallus var domesticus

10.1007/bf00616748 · ExternalCitation · doi-reference

Attitudes of different stakeholders toward pig husbandry: A study to determine conflicting and matching attitudes toward animals, humans and the environment

10.1007/s10460-016-9721-4 · ExternalCitation · doi-reference

Concepts of animal health and welfare in organic livestock systems

10.1007/s10806-011-9314-6 · ExternalCitation · doi-reference

Labels for animal husbandry systems meet consumer preferences: Results from a meta-analysis of consumer studies

10.1007/s10806-016-9647-2 · ExternalCitation · doi-reference

The ethics of laying hen genetics

10.1007/s10806-019-09810-2 · ExternalCitation · doi-reference

The challenge of incorporating animal welfare in a social life cycle assessment model of European chicken production

10.1007/s11367-018-1565-2 · ExternalCitation · doi-reference

Hotspot analysis for organic laying hen husbandry—Identification of sustainability problems as potential risk points to lose consumers’ trust

10.1007/s13165-023-00426-5 · ExternalCitation · doi-reference

Risks and opportunities of increasing yields in organic farming. A review

10.1007/s13593-018-0489-3 · ExternalCitation · doi-reference

Life-cycle analysis of soybean meal, distiller-dried grains with solubles, and synthetic amino acid-based animal feeds for swine and poultry production

10.1016/j.anifeedsci.2020.114607 · ExternalCitation · doi-reference

Review: The challenge to integrate animal welfare indicators into the Life Cycle Assessment

10.1016/j.animal.2023.100794 · ExternalCitation · doi-reference

Impact of sustainability perception on consumption of organic meat and meat substitutes

10.1016/j.appet.2018.09.016 · ExternalCitation · doi-reference

The risk factors affecting the development of gentle and severe feather pecking in loose housed laying hens

10.1016/j.applanim.2009.12.010 · ExternalCitation · doi-reference

Evaluation of a dustbathing substrate and straw bales as environmental enrichments in commercial broiler housing

10.1016/j.applanim.2017.11.010 · ExternalCitation · doi-reference

Effects of environmental complexity on behaviour in fast-growing broiler chickens

10.1016/j.applanim.2019.104840 · ExternalCitation · doi-reference

How does ultraviolet light affect layer production, fear, and stress

10.1016/j.applanim.2019.104926 · ExternalCitation · doi-reference

Investigating optimal levels of platform perch provision for windowed broiler housing

10.1016/j.applanim.2020.104967 · ExternalCitation · doi-reference

Brown and white egg-layer strain differences in fearfulness and stress measures

10.1016/j.applanim.2020.105087 · ExternalCitation · doi-reference

Providing environmental enrichments affects activity and performance, but not leg health in fast- and slower-growing broiler chickens

10.1016/j.applanim.2021.105375 · ExternalCitation · doi-reference

Reducing stocking density benefits behaviour of fast- and slower-growing broilers

10.1016/j.applanim.2022.105754 · ExternalCitation · doi-reference

A buffet of litters – Broiler chickens behave differently according to litter type and freshness

10.1016/j.applanim.2023.105856 · ExternalCitation · doi-reference

Meta-analysis on the effect of foraging on feather pecking and feather coverage

10.1016/j.applanim.2025.106584 · ExternalCitation · doi-reference

Per- and poly-fluoroalkyl substances in commercial organic eggs via fishmeal in feed

10.1016/j.chemosphere.2023.140553 · ExternalCitation · doi-reference

Consumers across five European countries prioritise animal welfare above environmental sustainability when buying meat and dairy products

10.1016/j.foodqual.2024.105179 · ExternalCitation · doi-reference

Effect of the addition of ultraviolet light on broiler growth, fear, and stress response

10.1016/j.japr.2020.01.003 · ExternalCitation · doi-reference

Comparison of commercial broiler house lighting programs using LED and natural light: Part 1—Spatial and temporal analysis of light intensity

10.1016/j.japr.2022.100272 · ExternalCitation · doi-reference

Poultry industry paradigms: Connecting the dots

10.1016/j.japr.2022.100310 · ExternalCitation · doi-reference

A multicriteria approach for measuring the sustainability of different poultry production systems

10.1016/j.jclepro.2012.07.006 · ExternalCitation · doi-reference

Investigating on the environmental sustainability of animal products: The case of organic eggs

10.1016/j.jclepro.2020.123046 · ExternalCitation · doi-reference

Farmer wellbeing and animal welfare: Exploring the connections using the case of facial eczema

10.1016/j.jrurstud.2023.103140 · ExternalCitation · doi-reference

Behavior as welfare indicator for the rearing of broilers in an enriched husbandry environment—A field study

10.1016/j.jveb.2017.03.003 · ExternalCitation · doi-reference

The effect of supplementary ultraviolet wavelengths on the performance of broiler chickens

10.1016/j.psj.2020.07.018 · ExternalCitation · doi-reference

A meta-analysis on the effect of environmental enrichment on feather pecking and feather damage in laying hens

10.1016/j.psj.2020.11.006 · ExternalCitation · doi-reference

Immune parameters in two different laying hen strains during five production periods

10.1016/j.psj.2021.101408 · ExternalCitation · doi-reference

Commercial layer hybrids kept under organic conditions: A comparison of range use, welfare, and egg production in two layer strains

10.1016/j.psj.2022.102005 · ExternalCitation · doi-reference

Fast- and slower-growing broilers respond similarly to a reduction in stocking density with regard to gait, hock burn, skin lesions, cleanliness, and performance

10.1016/j.psj.2023.102603 · ExternalCitation · doi-reference

Daylight exposure and circadian clocks in broilers: Part I—Photoperiod effect on broiler behavior, skeletal health, and fear response

10.1016/j.psj.2023.103162 · ExternalCitation · doi-reference

Consumer evaluation of farm animal mutilations

10.1016/j.rvsc.2019.10.006 · ExternalCitation · doi-reference

What is a better chicken? Exploring trade-offs between animal welfare and greenhouse gas emissions in higher-welfare broiler systems

10.1016/j.spc.2025.02.015 · ExternalCitation · doi-reference

Resistance and tolerance to mixed nematode infections in relation to performance level in laying hens

10.1016/j.vetpar.2019.108925 · ExternalCitation · doi-reference

Night-time roosting in laying hens and the effect of thwarting access to perches

10.1016/s0168-1591(00)00097-6 · ExternalCitation · doi-reference

Group size and perching behaviour in young domestic fowl

10.1016/s0168-1591(01)00135-6 · ExternalCitation · doi-reference

The prevention and control of feather pecking: Application to commercial systems

10.1017/s0043933913000809 · ExternalCitation · doi-reference

Sustainable development perspectives of poultry production

10.1017/s0043933915002433 · ExternalCitation · doi-reference

Evaluation of the environmental implications of the incorporation of feed-use amino acids in the manufacturing of pig and broiler feeds using Life Cycle Assessment

10.1017/s1751731111001078 · ExternalCitation · doi-reference

Influence of the provision of natural light and straw bales on activity levels and leg health in commercial broiler chickens

10.1017/s1751731112002108 · ExternalCitation · doi-reference

Welfare of organic laying hens kept at different indoor stocking densities in a multi-tier aviary system. I: Egg laying, and use of veranda and outdoor area

10.1017/s1751731115000713 · ExternalCitation · doi-reference

Review: Towards the agroecological management of ruminants, pigs and poultry through the development of sustainable breeding programmes: I-selection goals and criteria

10.1017/s1751731116000926 · ExternalCitation · doi-reference

Perches and elevated platforms in commercial broiler farms: Use and effect on walking ability, incidence of tibial dyschondroplasia and bone mineral content

10.1017/s1751731116002160 · ExternalCitation · doi-reference

Animal board invited review: Comparing conventional and organic livestock production systems on different aspects of sustainability

10.1017/s175173111700115x · ExternalCitation · doi-reference

Effects of a commercial broiler enrichment programme with or without natural light on behaviour and other welfare indicators

10.1017/s1751731118001805 · ExternalCitation · doi-reference

Chicken welfare is influenced more by housing conditions than by stocking density

10.1038/nature02226 · ExternalCitation · doi-reference

Strategies for feeding the world more sustainably with organic agriculture

10.1038/s41467-017-01410-w · ExternalCitation · doi-reference

Global trends in antimicrobial resistance on organic and conventional farms

10.1038/s41598-023-47862-7 · ExternalCitation · doi-reference

Current methods and techniques of beak trimming laying hens, welfare issues and alternative approaches

10.1071/an19673 · ExternalCitation · doi-reference

10.1079/9780851996684.0057

10.1079/9780851996684.0057 · ExternalCitation · doi-reference

Impact of feeding management on feather pecking in laying hens

10.1079/wps200478 · ExternalCitation · doi-reference

Stress and feather pecking in laying hens in relation to housing conditions

10.1080/00071660086358 · ExternalCitation · doi-reference

Influence of perch space allowance on perching behaviour of laying hens

10.1080/000716602762388455 · ExternalCitation · doi-reference

Economic, ecological, and social performance of conventional and organic broiler production in the Netherlands

10.1080/00071660903140999 · ExternalCitation · doi-reference

Effect of day length on flock behavioural patterns and melatonin rhythms in broilers

10.1080/00071668.2013.860211 · ExternalCitation · doi-reference

Factors affecting ranging behaviour in young and adult laying hens

10.1080/00071668.2014.889279 · ExternalCitation · doi-reference

Increasing persistency in lay and stabilising egg quality in longer laying cycles. What are the challenges?

10.1080/00071668.2016.1161727 · ExternalCitation · doi-reference

Influence of different dietary fibre contents in the diet on feather pecking, locomotor activity and performance of laying hens

10.1080/00071668.2022.2076212 · ExternalCitation · doi-reference

Lighting programme as a management tool for broilers raised without antibiotics – Impact on productivity and welfare

10.1080/00071668.2022.2083943 · ExternalCitation · doi-reference

A meta-analysis of the sources of variation in the environmental impacts of different broiler production systems

10.1080/00071668.2024.2409192 · ExternalCitation · doi-reference

Spectral sensitivity of the domestic fowl (Gallus g. domesticus)

10.1080/00071669987412 · ExternalCitation · doi-reference

Reflective properties of domestic fowl (Gallus g. domesticus), the fabric of their housing and the characteristics of the light environment in environmentally controlled poultry houses

10.1080/00071669987584 · ExternalCitation · doi-reference

Nutritional approaches to reduce or prevent feather pecking in laying hens: Any potential to intervene during rearing?

10.1080/00439339.2020.1772024 · ExternalCitation · doi-reference

The influence of light of different wavelengths on laying hen production and egg quality

10.1080/00439339.2020.1789023 · ExternalCitation · doi-reference

Dietary fibre in laying hens: A review of effects on performance, gut health and feather pecking

10.1080/00439339.2021.1960236 · ExternalCitation · doi-reference

An updated review on the effect of lighting on broilers and the environment of commercial houses

10.1080/00439339.2024.2446298 · ExternalCitation · doi-reference

Nutritional significance of amino acids, vitamins and minerals as nutraceuticals in poultry production and health–A comprehensive review

10.1080/01652176.2020.1857887 · ExternalCitation · doi-reference

Overcrowding stress decreases macrophage activity and increases Salmonella Enteritidis invasion in broiler chickens

10.1080/03079457.2013.874006 · ExternalCitation · doi-reference

Rapid growth predisposes broilers to necrotic enteritis

10.1080/03079457.2019.1614147 · ExternalCitation · doi-reference

Reduction of nitrogen excretion and emission in poultry: A review for organic poultry

10.1080/03601234.2015.1120616 · ExternalCitation · doi-reference

Comparative analysis of environmental impacts of agricultural production systems, agricultural input efficiency, and food choice

10.1088/1748-9326/aa6cd5 · ExternalCitation · doi-reference

The risk-benefit balance of resistance to ionophores in Enterococcus faecium and Enterococcus faecalis for ionophore coccidiostats in broiler chickens

10.1093/jac/dkad183 · ExternalCitation · doi-reference

A consensus on the definition of positive animal welfare

10.1098/rsbl.2024.0382 · ExternalCitation · doi-reference

Animal welfare: The attitudes and behaviour of European pig farmers

10.1108/00070700710835732 · ExternalCitation · doi-reference

Behavioural repertoire of free-range laying hens indoors and outdoors, and in relation to distance from the shed

10.1111/avj.12684 · ExternalCitation · doi-reference

Differential immune response to Eimeria maxima infection in fast- and slow-growing broiler genotypes

10.1111/pim.12660 · ExternalCitation · doi-reference

A bespoke management package can reduce levels of injurious pecking in loose-housed laying hen flocks

10.1136/vr.101067 · ExternalCitation · doi-reference

What is the real productivity of organic farming systems?

10.1177/00307270211017151 · ExternalCitation · doi-reference

The mental health of the organic farmer: Psychosocial and contextual actors

10.1177/2165079918783211 · ExternalCitation · doi-reference

Human health implications of organic food and organic agriculture: A comprehensive review

10.1186/s12940-017-0315-4 · ExternalCitation · doi-reference

Dietary fiber in poultry nutrition and their effects on nutrient utilization, performance, gut health, and on the environment: A review

10.1186/s40104-021-00576-0 · ExternalCitation · doi-reference

Production systems and important antimicrobial resistant-pathogenic bacteria in poultry: A review

10.1186/s40104-022-00786-0 · ExternalCitation · doi-reference

Access to barrier perches improves behavior repertoire in broilers

10.1371/journal.pone.0029826 · ExternalCitation · doi-reference

Space use by 4 strains of laying hens to perch, wing flap, dust bathe, stand and lie down

10.1371/journal.pone.0190532 · ExternalCitation · doi-reference

Significant reduction of vancomycin resistant E. faecium in the Norwegian broiler population coincided with measures taken by the broiler industry to reduce antimicrobial resistant bacteria

10.1371/journal.pone.0226101 · ExternalCitation · doi-reference

Keel bone fractures in Danish laying hens: Prevalence and risk factors

10.1371/journal.pone.0256105 · ExternalCitation · doi-reference

Behaviour and animal welfare indicators of broiler chickens housed in an enriched environment

10.1371/journal.pone.0256963 · ExternalCitation · doi-reference

Comparison of plumage condition of laying hens with intact and trimmed beaks kept on commercial farms

10.1399/eps.2015.116 · ExternalCitation · doi-reference

10.18174/518522

10.18174/518522 · ExternalCitation · doi-reference

Minimally-invasive assessments of the behavioural and physiological effects of enriched colony cages on laying hens

10.2174/1874331501105010010 · ExternalCitation · doi-reference

Interrelationships between cows, calves, and humans in cow-calf contact systems—An interview study among Norwegian dairy farmers

10.3168/jds.2022-22999 · ExternalCitation · doi-reference

Effects of a 16-hour light, 8-hour dark lighting schedule on behavioral traits and performance in male broiler chickens

10.3382/japr.2009-00026 · ExternalCitation · doi-reference

How to fulfill EU requirements to feed organic laying hens 100% organic ingredients

10.3382/japr/pfv048 · ExternalCitation · doi-reference

Sustainable fish and invertebrate meals for methionine and protein feeds in organic poultry production

10.3382/japr/pfy037 · ExternalCitation · doi-reference

Effects of barrier perches and density on broiler leg health, fear, and performance

10.3382/ps.2009-00576 · ExternalCitation · doi-reference

Effect of day length on cause of mortality, leg health, and ocular health in broilers

10.3382/ps.2011-01967 · ExternalCitation · doi-reference

Increasing dietary vitamin D3 improves the walking ability and welfare status of broiler chickens reared at high stocking densities

10.3382/ps.2013-03278 · ExternalCitation · doi-reference

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

10.3382/ps/pev171 · ExternalCitation · doi-reference

Genetic selection to increase bone strength affects prevalence of keel bone damage and egg parameters in commercially housed laying hens

10.3382/ps/pew026 · ExternalCitation · doi-reference

Effects of stock density on the laying performance, blood parameter, corticosterone, litter quality, gas emission and bone mineral density of laying hens in floor pens

10.3382/ps/pew264 · ExternalCitation · doi-reference

Review of environmental enrichment for broiler chickens

10.3382/ps/pex344 · ExternalCitation · doi-reference

Ranging behavior relates to welfare indicators pre- and post-range access in commercial free-range broilers

10.3382/ps/pey060 · ExternalCitation · doi-reference

Perches or grids? What do rearing chickens differing in growth performance prefer for roosting?

10.3382/ps/pey320 · ExternalCitation · doi-reference

Application of ultraviolet light for poultry production: A review of impacts on behavior, physiology, and production

10.3389/fanim.2021.699262 · ExternalCitation · doi-reference

Introduction to the concept of “welfare potential” of production systems and its practical relevance to welfare labelling

10.3389/fanim.2023.1225839 · ExternalCitation · doi-reference

The perks of being an organic chicken – Animal welfare science on the key features of organic poultry production

10.3389/fanim.2024.1400384 · ExternalCitation · doi-reference

Differences in fear response strategy and stress susceptibility amongst four different commercial layer strains reared cage free

10.3389/fphys.2022.943471 · ExternalCitation · doi-reference

Welfare consequences of omitting beak trimming in barn layers

10.3389/fvets.2017.00222 · ExternalCitation · doi-reference

Linear space requirements and perch use of conventional layer hybrids and dual-purpose hens in an aviary system

10.3389/fvets.2019.00231 · ExternalCitation · doi-reference

Chicken coccidiosis: From the parasite lifecycle to control of the disease

10.3389/fvets.2021.787653 · ExternalCitation · doi-reference

Foraging behavior shows individual-consistency over time, and predicts range use in slow-growing free-range male broiler chickens

10.3389/fvets.2022.814054 · ExternalCitation · doi-reference

Welfare issues and potential solutions for laying hens in free range and organic production systems: A review based on literature and interviews

10.3389/fvets.2022.952922 · ExternalCitation · doi-reference

Prices of Organic food—The gap between willingness to pay and price premiums in the organic food market in Poland

10.3390/agriculture14010017 · ExternalCitation · doi-reference

Effects of B-wave ultraviolet supplementation using light-emitting diodes on caged laying hens during the later phase of the laying cycle

10.3390/ani10010015 · ExternalCitation · doi-reference

Effect of feed additives as alternatives to in-feed antimicrobials on production performance and intestinal clostridium perfringens counts in broiler chickens

10.3390/ani10020240 · ExternalCitation · doi-reference

The productivity and financial impacts of eight types of environmental enrichment for broiler chickens

10.3390/ani10030378 · ExternalCitation · doi-reference

Impact of housing environment on the immune system in chickens: A review

10.3390/ani10071138 · ExternalCitation · doi-reference

Commercial poultry production stocking density influence on bird health and performance indicators

10.3390/ani10081253 · ExternalCitation · doi-reference

Bird health, housing and management routines on Swedish organic broiler chicken farms

10.3390/ani10112098 · ExternalCitation · doi-reference

Immunomodulatory effects of dietary phosphorus and calcium in two strains of laying hens

10.3390/ani11010129 · ExternalCitation · doi-reference

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10.3390/ani11113085 · ExternalCitation · doi-reference

Sustainability of rearing system using multicriteria analysis: Application in commercial poultry production

10.3390/ani11123483 · ExternalCitation · doi-reference

Positive effects of elevated platforms and straw bales on the welfare of fast-growing broiler chickens reared at two different stocking densities

10.3390/ani12050542 · ExternalCitation · doi-reference

Soil organic matter and nutrient levels in outdoor runs in organic laying farms

10.3390/ani13030401 · ExternalCitation · doi-reference

Coccidiostats and poultry: A comprehensive review and current legislation

10.3390/foods11182738 · ExternalCitation · doi-reference

Coccidiosis: Recent progress in host immunity and alternatives to antibiotic strategies

10.3390/vaccines10020215 · ExternalCitation · doi-reference

Anticoccidial vaccination is associated with improved intestinal health in organic chickens

10.3390/vetsci9070347 · ExternalCitation · doi-reference

Effects of different types of environmental enrichment on behaviour, performance, welfare, carcass characteristics and lipid profile of broiler chickens

10.35943/2682-2512.1225 · ExternalCitation · doi-reference

10.3920/9789086866168_004

10.3920/9789086866168_004 · ExternalCitation · doi-reference

Feather-pecking and injurious pecking in organic laying hens in 107 flocks from eight european countries

10.7120/09627286.26.3.355 · ExternalCitation · doi-reference

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10.7120/09627286.30.2.121 · ExternalCitation · doi-reference