Research graph
References from Pasture-based systems: laying hens. Local targets link to admitted publications; unresolved targets remain external evidence.
Ammonia emission and nutrient load in outdoor runs of laying hens
2006 · External reference
Village poultry: Still important to millions, eight thousand years after domestication
10.1017/s0043933909000117 · 2009 · External reference
Cell proliferation in the adult chicken hippocampus correlates with individual differences in time spent in outdoor areas and tonic immobility
10.3389/fvets.2020.00587 · 2020 · External reference
Detection of jumping and landing force in laying hens using wireless wearable sensors
10.3382/ps.2014-04006 · 2014 · External reference
The use of decision trees and naïve bayes algorithms and trace element patterns for controlling the authenticity of free-range-pastured hens’ eggs
10.1111/1750-3841.12577 · 2014 · External reference
Relationship between range use and fearfulness in free-range hens from different rearing enrichments
10.3390/ani11020300 · 2021 · External reference
Cecal microbiota of free-range hens varied with different rearing enrichments and ranging patterns
10.3389/fmicb.2021.797396 · 2022 · External reference
Effects of outdoor ranging on external and internal health parameters for hens from different rearing enrichments
2020 · External reference
Management of laying hens in mobile houses: A review of experiences
2000 · External reference
Presence of avian influenza risk birds in and around poultry free-range areas in relation to range vegetation and openness of surrounding landscape
10.1007/s10457-017-0117-2 · 2018 · External reference
Factors related to free-range use in commercial laying hens
10.1016/j.applanim.2019.02.015 · 2019 · External reference
Health and welfare in Dutch organic laying hens
10.3390/ani4020374 · 2014 · External reference
A survey of coccidia and nematodes in pastured poultry in the state of Georgia
10.1637/aviandiseases-d-20-00120 · 2021 · External 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 · 2022 · External reference
Happy chickens lay tastier eggs: Motivations for buying free-range eggs in Australia
10.1080/08927936.2017.1310986 · 2017 · External reference
The chicken for the egg: Australian motivations for raising backyard chickens
10.1080/08927936.2024.2418698 · 2025 · External reference
Application of open field, tonic immobility, and attention bias tests to hens with different ranging patterns
2019 · External reference
Rearing enrichments affected ranging behavior in free-range laying hens
10.3389/fvets.2020.00446 · 2020 · External reference
Fear and coping styles of outdoor-preferring, moderate-outdoor and indoor-preferring free-range laying hens
10.1016/j.applanim.2016.09.004 · 2016 · External reference
Free-range egg production: Its implications for hen welfare
10.1071/an19576 · 2021 · External reference
Early enrichment in free-range laying hens: Effects on ranging behaviour, welfare and response to stressors
10.1017/s1751731117001859 · 2018 · External reference
Outdoor stocking density in free-range laying hens: Radio-frequency identification of impacts on range use
10.1017/s1751731116001154 · 2017 · External reference
Effects of housing system and cold stress on heterophil-to-lymphocyte ratio, fluctuating asymmetry, and tonic immobility duration of chickens
10.3382/ps.2007-00466 · 2008 · External reference
Computational fluid dynamics analysis of alternative ventilation schemes in cage-free poultry housing
10.3390/ani11082352 · 2021 · External reference
Ranging behaviour of commercial free-range laying hens
10.3390/ani6050028 · 2016 · External reference
Descriptive epidemiology of smothering in Australian commercial free-range layer hen farms
10.1016/j.prevetmed.2023.106098 · 2024 · External reference
Feather pecking in laying hens housed in free-range or furnished-cage systems on French farms
10.1080/00071668.2019.1639137 · 2019 · External reference
Effect of range enrichment on performance, behavior, and forage intake of free-range chickens
10.3382/japr.2013-00814 · 2014 · External reference
Air quality in alternative housing systems may have an impact on laying hen welfare. Part II-ammonia
10.3390/ani5030389 · 2015 · External reference
Unresolved reference
2012 · External reference
Time budgets in Red Junglefowl as a baseline for the assessment of welfare in domestic fowl
10.1016/0168-1591(89)90126-3 · 1989 · External reference
Natural behaviour is not enough: Farm animal welfare needs modern answers to tinbergen’s four questions
10.3390/ani13060988 · 2023 · External reference
Emissions of ammonia, nitrous oxide, and methane from aviaries with organic laying hen husbandry
10.1016/j.biosystemseng.2011.07.006 · 2011 · External reference
Total loss and distribution of nitrogen and phosphorus in the outdoor run of organic laying hens
10.1080/00071668.2012.749342 · 2012 · External reference
Space use of free-range laying hens on two outdoor ranges with different amounts of vegetation cover
10.1016/j.applanim.2024.106353 · 2024 · External reference
Effects of key farm management practices on pullets welfare—A review
10.3390/ani12060729 · 2022 · External reference
Risk for animal and human health related to the presence of dioxins and dioxin-like PCBs in feed and food
10.2903/j.efsa.2018.5333 · 2018 · External reference
Welfare of laying hens on farm
10.2903/j.efsa.2023.7789 · 2023 · External reference
Unresolved reference
External reference
Backyard chickens in the United States: A survey of flock owners
10.3382/ps.2014-04154 · 2014 · External reference
Stress and feather pecking in laying hens in relation to housing conditions
10.1080/00071660086358 · 2000 · External reference
Poultry welfare in intensive and extensive production systems
10.1017/s0043933915002172 · 2015 · External reference
Feeding layers of different genotypes in organic feed environments
10.1080/00071660802491519 · 2008 · External reference
Social motivation and the use of distal, but not local, featural cues are related to ranging behavior in free-range chickens (Gallus gallus domesticus)
10.1007/s10071-020-01389-w · 2020 · External reference
Development of chicken production on free-range system
10.14334/wartazoa.v31i4.2683 · 2021 · External reference
Legehennen in einem mobilen Stallsystem—Auslaufnutzung und Flächenzustand
2005 · External reference
Legehennen in einem mobilen Stallsystem—Flächenmanagement und resultierende Stickstoffgehalte im Auslauf
2005 · External reference
Microbiological vulnerability of eggs and environmental conditions in conventional and free-range housing systems
2018 · External reference
Review: Production factors affecting the quality of chicken table eggs and egg products in Europe
10.1016/j.animal.2021.100425 · 2022 · External reference
Review: What are the challenges facing the table egg industry in the next decades and what can be done to address them?
10.1016/j.animal.2021.100282 · 2021 · External reference
Use of outdoor ranges by laying hens in different sized flocks
10.1016/j.applanim.2014.03.010 · 2014 · External reference
Similarity in temporal movement patterns in laying hens increases with time and social association
10.3390/ani12050555 · 2022 · External reference
Easier said than done! Organic farmers consider free-ranging important for laying hen welfare but outdoor areas need more shelter – important gaps between research and practice
10.1080/00071668.2023.2220650 · 2023 · External reference
Cross-sectional study of the prevalence of feather pecking in laying hens in alternative systems and its associations with management and disease
10.1136/vr.147.9.233 · 2000 · External reference
Effect of husbandry system on broken bones and bone strength in hens
10.1136/vr.128.17.397 · 1991 · External reference
Social inhibition of movement in domestic hens
10.1006/anbe.1995.0168 · 1995 · External reference
DNA methylation variation in the brain of laying hens in relation to differential behavioral patterns
2020 · External reference
Women and family poultry production in rural Africa
10.1080/09614520052565 · 2000 · External reference
Review: The effect of grass and herbs in organic egg production on egg fatty acid composition, egg yolk colour and sensory properties
10.1016/j.livsci.2016.11.001 · 2016 · External reference
Dual-purpose poultry in organic egg production and effects on egg quality parameters
10.3390/foods10040897 · 2021 · External reference
Survey of laying hen husbandry in Switzerland
10.1079/wps20000003 · 2000 · External reference
Relationships between range access as monitored by radio frequency identification technology, fearfulness, and plumage damage in free-range laying hens
10.1017/s1751731115002463 · 2016 · External reference
Use of the range area in organic egg production systems: Effect of climatic factors, flock size, age and artificial cover
10.1080/00071660400023813 · 2005 · External reference
Centennial review: A revisiting of hen welfare and egg safety consequences of mandatory outdoor access for organic egg production
10.1016/j.psj.2021.101436 · 2021 · External reference
The impact of different housing systems on egg safety and quality
10.3382/ps.2010-00794 · 2011 · External reference
Fast recognition of table eggs from different farming systems using physical traits and multi-layer perceptron
2024 · External reference
Pasture, multi-enzymes, benzoic acid and essential oils positively influence performance, intestinal organ weight and egg quality in free-range laying hens
10.1080/00071668.2017.1403566 · 2018 · External reference
Prevalence of coliforms, Salmonella, Listeria, and Campylobacter associated with eggs and the environment of conventional cage and free-range egg production
10.3382/ps.2011-01795 · 2012 · External reference
Microbiological impact of three commercial laying hen housing systems
10.3382/ps/peu010 · 2015 · External reference
Symbiotic husbandry of chickens and pigs does not increase pathogen transmission risk
10.3390/foods11193126 · 2022 · External reference
Backyard chicken keeping in the greater London urban area: Welfare status, biosecurity and disease control issues
10.1080/00071668.2012.707309 · 2012 · External reference
Vitamins A, E and fatty acid composition of the eggs of caged hens and pastured hens
10.1017/s1742170509990214 · 2010 · External reference
Performance of free-range laying hens in a polythene house and their behavior on range
1988 · External reference
Effect of flock size on dioxin levels in eggs from chickens kept outside
10.1093/ps/86.9.2042 · 2007 · External reference
Social buffering: Relief from stress and anxiety
10.1098/rstb.2006.1941 · 2006 · External reference
Unresolved reference
External reference
Animal welfare aspects of outdoor runs for laying hens: a review
2006 · External reference
Frequent visits to an outdoor range and lower areas of an aviary system is related to curiosity in commercial free-range laying hens
10.3390/ani10091706 · 2020 · External reference
Behaviour of free-range laying hens in distinct outdoor environments
10.7120/09627286.26.3.255 · 2017 · External reference
Relationship between welfare and individual ranging behaviour in commercial free-range laying hens
10.1017/s1751731118000022 · 2018 · External reference
Effect of range use on endo- and ectoparasite infestation in italian organic egg production
10.1080/1828051x.2018.1564377 · 2019 · External reference
The effects of stress on avoidance in rodents: An unresolved matter
10.3389/fnbeh.2022.983026 · 2022 · External reference
Method to estimate feed intake from pasture in broilers and laying hens
10.1016/s0003-9098(25)01524-3 · 2013 · External reference
Evaluation of Maryland backyard flocks and biosecurity practices
10.1637/10428-101912-reg.1 · 2013 · External reference
Prevalence and differentiation of diseases in Maryland backyard flocks
10.1637/10423-101612-reg.1 · 2013 · External reference
Outdoor use, tonic immobility, heterophil/lymphocyte ratio and feather condition in free-range laying hens of different genotype
10.1080/00071660400014267 · 2004 · External reference
Characterization of indigenous chicken production systems in Rwanda
10.3382/ps/pex240 · 2017 · External reference
Not all ‘predator odours’ are equal: Cat odour but not 2,4,5 trimethylthiazoline (TMT; fox odour) elicits specific defensive behaviours in rats
10.1016/s0166-4328(01)00324-2 · 2002 · External reference
Histologically-validated footpad dermatitis scoring system for use in chicken processing plants
10.1080/00071668.2012.695336 · 2012 · External reference
Sustainability and quality aspects of different table egg production systems: A literature review
10.3390/su12197884 · 2020 · External reference
Local chickens in East African region: Their production and potential
10.1016/j.psj.2021.101547 · 2022 · External reference
Impacts of access to legume- or grass-based pasture on behaviour, physiological responses and bacterial load of laying hens
10.1016/j.heliyon.2024.e34780 · 2024 · External reference
Enhancing range use in free-range laying hen systems: The impact of vegetation cover over time
10.3390/ani15091204 · 2025 · External reference
Consumer perceptions of free-range laying hen welfare
10.1108/bfj-02-2016-0065 · 2016 · External reference
The relationship between egg quality and hen housing systems - A systematic review
10.1016/j.livsci.2021.104597 · 2021 · External reference
Impact of housing system on intestinal microbiota of laying hens – A systematic review
10.1016/j.rvsc.2024.105184 · 2024 · External reference
10.1109/isma.2018.8330139
10.1109/isma.2018.8330139 · External reference
A consensus on the definition of positive animal welfare
10.1098/rsbl.2024.0382 · 2025 · External reference
Pop hole use by hens with different keel fracture status monitored throughout the laying period
10.1136/vr.100489 · 2012 · External reference
Organic farming and the sustainability of agricultural systems
10.1016/s0308-521x(00)00060-3 · 2001 · External reference
The prevention and control of feather pecking in laying hens: Identifying the underlying principles
10.1017/s0043933913000354 · 2013 · External reference
Use of space and its impact on the welfare of laying hens in a commercial free-range system
10.3382/ps/pew238 · 2016 · External reference
Unresolved reference
External reference
Temporal dynamics of cloacal microbiota in adult laying chickens with and without access to an outdoor range
10.3389/fmicb.2020.626713 · 2021 · External reference
Effect of housing environment and hen strain on egg production and egg quality as well as cloacal and eggshell microbiology in laying hens
10.1016/j.psj.2021.101595 · 2022 · External reference
Flock use of the range is associated with the use of different components of a multi-tier aviary system in commercial free-range laying hens
10.1080/00071668.2019.1686123 · 2020 · External reference
10.1007/978-3-031-85933-5_17
10.1007/978-3-031-85933-5_17 · External reference
The relationship between agricultural environments and olfactory dysfunction
10.13031/2013.13686 · 2003 · External reference
Soil macrofauna under laying hens’ grazed fields in two different agroecosystems in Portugal
10.1515/opag-2022-0172 · 2023 · External reference
Red clover-rich grassland increases equol concentration in eggs from free-range laying hens
10.1080/00071668.2021.1929069 · 2021 · External reference
Feeding forage in poultry: A promising alternative for the future of production systems
10.3390/agriculture8060081 · 2018 · External reference
Comparison between cage and free-range egg production on microbial composition, diversity and the presence of Salmonella enterica
10.1016/j.fm.2021.103754 · 2021 · External reference
Unresolved reference
External reference
Some behavioural observations on domestic fowl in the wild
10.1016/0304-3762(76)90057-2 · 1976 · External reference
Unresolved reference
1987 · External reference
Associations of range use with individual behaviour, clinical welfare indicators, fear response and gastrointestinal characteristics of two laying hen hybrids
10.1016/j.applanim.2023.105978 · 2023 · External 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 · 2022 · External reference
Discrimination of free-range and caged eggs by chemometrics analysis of the elemental profiles of eggshell
10.1155/2023/1271409 · 2023 · External reference
The potential of understory production systems to improve laying hen welfare
10.3390/ani12172305 · 2022 · External reference
Bilateral apex pubis distance: A novel index for follicular development and egg laying status in domestic hens (Gallus gallus domesticus)
10.1080/00071668.2019.1697429 · 2020 · External reference
Effect of artificial structuring on the use of laying hen runs in a free-range system
10.1080/00071660310001616264 · 2003 · External reference
Factors involved in the improvement of the use of hen runs
10.1016/j.applanim.2008.04.007 · 2008 · External reference
Soil organic matter and nutrient levels in outdoor runs in organic laying farms
10.3390/ani13030401 · 2023 · External reference
Social inhibition of movement in domestic hens
10.1006/anbe.1995.0168 · ExternalCitation · doi-reference
10.1007/978-3-031-85933-5_17
10.1007/978-3-031-85933-5_17 · ExternalCitation · doi-reference
Social motivation and the use of distal, but not local, featural cues are related to ranging behavior in free-range chickens (Gallus gallus domesticus)
10.1007/s10071-020-01389-w · ExternalCitation · doi-reference
Presence of avian influenza risk birds in and around poultry free-range areas in relation to range vegetation and openness of surrounding landscape
10.1007/s10457-017-0117-2 · ExternalCitation · doi-reference
Time budgets in Red Junglefowl as a baseline for the assessment of welfare in domestic fowl
10.1016/0168-1591(89)90126-3 · ExternalCitation · doi-reference
Some behavioural observations on domestic fowl in the wild
10.1016/0304-3762(76)90057-2 · ExternalCitation · doi-reference
Review: What are the challenges facing the table egg industry in the next decades and what can be done to address them?
10.1016/j.animal.2021.100282 · ExternalCitation · doi-reference
Review: Production factors affecting the quality of chicken table eggs and egg products in Europe
10.1016/j.animal.2021.100425 · ExternalCitation · doi-reference
Factors involved in the improvement of the use of hen runs
10.1016/j.applanim.2008.04.007 · ExternalCitation · doi-reference
Use of outdoor ranges by laying hens in different sized flocks
10.1016/j.applanim.2014.03.010 · ExternalCitation · doi-reference
Fear and coping styles of outdoor-preferring, moderate-outdoor and indoor-preferring free-range laying hens
10.1016/j.applanim.2016.09.004 · ExternalCitation · doi-reference
Factors related to free-range use in commercial laying hens
10.1016/j.applanim.2019.02.015 · ExternalCitation · doi-reference
Associations of range use with individual behaviour, clinical welfare indicators, fear response and gastrointestinal characteristics of two laying hen hybrids
10.1016/j.applanim.2023.105978 · ExternalCitation · doi-reference
Space use of free-range laying hens on two outdoor ranges with different amounts of vegetation cover
10.1016/j.applanim.2024.106353 · ExternalCitation · doi-reference
Emissions of ammonia, nitrous oxide, and methane from aviaries with organic laying hen husbandry
10.1016/j.biosystemseng.2011.07.006 · ExternalCitation · doi-reference
Comparison between cage and free-range egg production on microbial composition, diversity and the presence of Salmonella enterica
10.1016/j.fm.2021.103754 · ExternalCitation · doi-reference
Impacts of access to legume- or grass-based pasture on behaviour, physiological responses and bacterial load of laying hens
10.1016/j.heliyon.2024.e34780 · ExternalCitation · doi-reference
Review: The effect of grass and herbs in organic egg production on egg fatty acid composition, egg yolk colour and sensory properties
10.1016/j.livsci.2016.11.001 · ExternalCitation · doi-reference
The relationship between egg quality and hen housing systems - A systematic review
10.1016/j.livsci.2021.104597 · ExternalCitation · doi-reference
Descriptive epidemiology of smothering in Australian commercial free-range layer hen farms
10.1016/j.prevetmed.2023.106098 · ExternalCitation · doi-reference
Centennial review: A revisiting of hen welfare and egg safety consequences of mandatory outdoor access for organic egg production
10.1016/j.psj.2021.101436 · ExternalCitation · doi-reference
Local chickens in East African region: Their production and potential
10.1016/j.psj.2021.101547 · ExternalCitation · doi-reference
Effect of housing environment and hen strain on egg production and egg quality as well as cloacal and eggshell microbiology in laying hens
10.1016/j.psj.2021.101595 · 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
Impact of housing system on intestinal microbiota of laying hens – A systematic review
10.1016/j.rvsc.2024.105184 · ExternalCitation · doi-reference
Method to estimate feed intake from pasture in broilers and laying hens
10.1016/s0003-9098(25)01524-3 · ExternalCitation · doi-reference
Not all ‘predator odours’ are equal: Cat odour but not 2,4,5 trimethylthiazoline (TMT; fox odour) elicits specific defensive behaviours in rats
10.1016/s0166-4328(01)00324-2 · ExternalCitation · doi-reference
Organic farming and the sustainability of agricultural systems
10.1016/s0308-521x(00)00060-3 · ExternalCitation · doi-reference
Village poultry: Still important to millions, eight thousand years after domestication
10.1017/s0043933909000117 · ExternalCitation · doi-reference
The prevention and control of feather pecking in laying hens: Identifying the underlying principles
10.1017/s0043933913000354 · ExternalCitation · doi-reference
Poultry welfare in intensive and extensive production systems
10.1017/s0043933915002172 · ExternalCitation · doi-reference
Vitamins A, E and fatty acid composition of the eggs of caged hens and pastured hens
10.1017/s1742170509990214 · ExternalCitation · doi-reference
Relationships between range access as monitored by radio frequency identification technology, fearfulness, and plumage damage in free-range laying hens
10.1017/s1751731115002463 · ExternalCitation · doi-reference
Outdoor stocking density in free-range laying hens: Radio-frequency identification of impacts on range use
10.1017/s1751731116001154 · ExternalCitation · doi-reference
Early enrichment in free-range laying hens: Effects on ranging behaviour, welfare and response to stressors
10.1017/s1751731117001859 · ExternalCitation · doi-reference
Relationship between welfare and individual ranging behaviour in commercial free-range laying hens
10.1017/s1751731118000022 · ExternalCitation · doi-reference
Free-range egg production: Its implications for hen welfare
10.1071/an19576 · ExternalCitation · doi-reference
Survey of laying hen husbandry in Switzerland
10.1079/wps20000003 · ExternalCitation · doi-reference
Stress and feather pecking in laying hens in relation to housing conditions
10.1080/00071660086358 · ExternalCitation · doi-reference
Effect of artificial structuring on the use of laying hen runs in a free-range system
10.1080/00071660310001616264 · ExternalCitation · doi-reference
Outdoor use, tonic immobility, heterophil/lymphocyte ratio and feather condition in free-range laying hens of different genotype
10.1080/00071660400014267 · ExternalCitation · doi-reference
Use of the range area in organic egg production systems: Effect of climatic factors, flock size, age and artificial cover
10.1080/00071660400023813 · ExternalCitation · doi-reference
Feeding layers of different genotypes in organic feed environments
10.1080/00071660802491519 · ExternalCitation · doi-reference
Histologically-validated footpad dermatitis scoring system for use in chicken processing plants
10.1080/00071668.2012.695336 · ExternalCitation · doi-reference
Backyard chicken keeping in the greater London urban area: Welfare status, biosecurity and disease control issues
10.1080/00071668.2012.707309 · ExternalCitation · doi-reference
Total loss and distribution of nitrogen and phosphorus in the outdoor run of organic laying hens
10.1080/00071668.2012.749342 · ExternalCitation · doi-reference
Pasture, multi-enzymes, benzoic acid and essential oils positively influence performance, intestinal organ weight and egg quality in free-range laying hens
10.1080/00071668.2017.1403566 · ExternalCitation · doi-reference
Feather pecking in laying hens housed in free-range or furnished-cage systems on French farms
10.1080/00071668.2019.1639137 · ExternalCitation · doi-reference
Flock use of the range is associated with the use of different components of a multi-tier aviary system in commercial free-range laying hens
10.1080/00071668.2019.1686123 · ExternalCitation · doi-reference
Bilateral apex pubis distance: A novel index for follicular development and egg laying status in domestic hens (Gallus gallus domesticus)
10.1080/00071668.2019.1697429 · ExternalCitation · doi-reference
Red clover-rich grassland increases equol concentration in eggs from free-range laying hens
10.1080/00071668.2021.1929069 · ExternalCitation · doi-reference
Easier said than done! Organic farmers consider free-ranging important for laying hen welfare but outdoor areas need more shelter – important gaps between research and practice
10.1080/00071668.2023.2220650 · ExternalCitation · doi-reference
Happy chickens lay tastier eggs: Motivations for buying free-range eggs in Australia
10.1080/08927936.2017.1310986 · ExternalCitation · doi-reference
The chicken for the egg: Australian motivations for raising backyard chickens
10.1080/08927936.2024.2418698 · ExternalCitation · doi-reference
Women and family poultry production in rural Africa
10.1080/09614520052565 · ExternalCitation · doi-reference
Effect of range use on endo- and ectoparasite infestation in italian organic egg production
10.1080/1828051x.2018.1564377 · ExternalCitation · doi-reference
Effect of flock size on dioxin levels in eggs from chickens kept outside
10.1093/ps/86.9.2042 · ExternalCitation · doi-reference
A consensus on the definition of positive animal welfare
10.1098/rsbl.2024.0382 · ExternalCitation · doi-reference
Social buffering: Relief from stress and anxiety
10.1098/rstb.2006.1941 · ExternalCitation · doi-reference
Consumer perceptions of free-range laying hen welfare
10.1108/bfj-02-2016-0065 · ExternalCitation · doi-reference
10.1109/isma.2018.8330139
10.1109/isma.2018.8330139 · ExternalCitation · doi-reference
The use of decision trees and naïve bayes algorithms and trace element patterns for controlling the authenticity of free-range-pastured hens’ eggs
10.1111/1750-3841.12577 · ExternalCitation · doi-reference
Pop hole use by hens with different keel fracture status monitored throughout the laying period
10.1136/vr.100489 · ExternalCitation · doi-reference
Effect of husbandry system on broken bones and bone strength in hens
10.1136/vr.128.17.397 · ExternalCitation · doi-reference
Cross-sectional study of the prevalence of feather pecking in laying hens in alternative systems and its associations with management and disease
10.1136/vr.147.9.233 · ExternalCitation · doi-reference
Discrimination of free-range and caged eggs by chemometrics analysis of the elemental profiles of eggshell
10.1155/2023/1271409 · ExternalCitation · doi-reference
The relationship between agricultural environments and olfactory dysfunction
10.13031/2013.13686 · ExternalCitation · doi-reference
Development of chicken production on free-range system
10.14334/wartazoa.v31i4.2683 · ExternalCitation · doi-reference
Soil macrofauna under laying hens’ grazed fields in two different agroecosystems in Portugal
10.1515/opag-2022-0172 · ExternalCitation · doi-reference
Prevalence and differentiation of diseases in Maryland backyard flocks
10.1637/10423-101612-reg.1 · ExternalCitation · doi-reference
Evaluation of Maryland backyard flocks and biosecurity practices
10.1637/10428-101912-reg.1 · ExternalCitation · doi-reference
A survey of coccidia and nematodes in pastured poultry in the state of Georgia
10.1637/aviandiseases-d-20-00120 · ExternalCitation · doi-reference
Risk for animal and human health related to the presence of dioxins and dioxin-like PCBs in feed and food
10.2903/j.efsa.2018.5333 · ExternalCitation · doi-reference
Welfare of laying hens on farm
10.2903/j.efsa.2023.7789 · ExternalCitation · doi-reference
Effect of range enrichment on performance, behavior, and forage intake of free-range chickens
10.3382/japr.2013-00814 · ExternalCitation · doi-reference
Effects of housing system and cold stress on heterophil-to-lymphocyte ratio, fluctuating asymmetry, and tonic immobility duration of chickens
10.3382/ps.2007-00466 · ExternalCitation · doi-reference
The impact of different housing systems on egg safety and quality
10.3382/ps.2010-00794 · ExternalCitation · doi-reference
Prevalence of coliforms, Salmonella, Listeria, and Campylobacter associated with eggs and the environment of conventional cage and free-range egg production
10.3382/ps.2011-01795 · ExternalCitation · doi-reference
Detection of jumping and landing force in laying hens using wireless wearable sensors
10.3382/ps.2014-04006 · ExternalCitation · doi-reference
Backyard chickens in the United States: A survey of flock owners
10.3382/ps.2014-04154 · ExternalCitation · doi-reference
Microbiological impact of three commercial laying hen housing systems
10.3382/ps/peu010 · ExternalCitation · doi-reference
Use of space and its impact on the welfare of laying hens in a commercial free-range system
10.3382/ps/pew238 · ExternalCitation · doi-reference
Characterization of indigenous chicken production systems in Rwanda
10.3382/ps/pex240 · ExternalCitation · doi-reference
Temporal dynamics of cloacal microbiota in adult laying chickens with and without access to an outdoor range
10.3389/fmicb.2020.626713 · ExternalCitation · doi-reference
Cecal microbiota of free-range hens varied with different rearing enrichments and ranging patterns
10.3389/fmicb.2021.797396 · ExternalCitation · doi-reference
The effects of stress on avoidance in rodents: An unresolved matter
10.3389/fnbeh.2022.983026 · ExternalCitation · doi-reference
Rearing enrichments affected ranging behavior in free-range laying hens
10.3389/fvets.2020.00446 · ExternalCitation · doi-reference
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Behaviour of free-range laying hens in distinct outdoor environments
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