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Organic Poultry Production
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- Ecology and Environment
- Nutrition, Safety and Health of Organic Foods
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- Social Science
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Practical Results
General organic poultry resources
- Food Safety in Organic Poultry Webinar
- eOrganic. 2014
- Free Choice Feeding for Free Range Meat Chickens
- Ontario Ministry of Food and Agriculture. 2014
- Ontario Ministry of Food and Agriculture. 2014
- How to motivate laying hens to use the hen run?
- Organic Eprints. 2004
- Including Amaranth in Organic Poultry Diets
- eOrganic. 2013
- eOrganic. 2013
- Including Barley in Organic Poultry Diets
- eOrganic. 2013
- Including Canola in Organic Poultry Diets
- eOrganic. 2013
- Including Earthworms in Organic Poultry Diets
- eOrganic. 2013
- Including Fishmeal in Organic Poultry Diets
- eOrganic. 2013
- Including Flax Seed in Organic Poultry Diets
- eOrganic. 2013
- Including Insects in Organic Poultry Diets
- eOrganic. 2013
- A Novel Nutritional Approach to Rearing Organic Pastured Broiler Chickens Recorded Webinar
- eOrganic. 2013
- Nutrient Requirements of Organic Growing Turkeys
- eOrganic. 2014
- Organic Poultry Production
- Tri-state Organic Video Series. 2007
- Organic Poultry Production: Providing Adequate Methionine
- ATTRA. 2010
- Pastured Poultry: Egg Production
- ATTRA. 2015
- Pastured Poultry Nutrition and Forages
- ATTRA. 2013
- ATTRA. 2013
- Profitable Poultry: Raising Birds on Pasture
- Sustainable Agriculture Research & Education. 2012
- Sustainable Agriculture Research & Education. 2012
- Quality of foraging material and effect on hens feed intake, egg production and quality
- ICROFS. 2010
- The real deal in organic pastured poultry
- Rodale Institute. 2007
Health and welfare
- Avian Influenza in Free-Range and Organic Poultry Production
- ATTRA. 2006
- Control of External Parasites in Organic Poultry Production
- eOrganic. 2013
- eOrganic. 2013
- Farm Assessment Checklist for Laying Hens [PDF - 149 kB]
- Animal Welfare Task Force. 2009
- Animal Welfare Task Force. 2009
- Guidance for Organic Poultry Production: Animal Welfare on Organic Farms [PDF - 95 kB]
- Animal Welfare Task Force. 2009
- Animal Welfare Task Force. 2009
- Guide to on-farm stunning and euthanasia of speciality poultry and barnyard fowl [PDF - 409 kB]
- MAPAQ. 2008
- Index of Poultry Diseases
- Organic-Vet
- Nuisance Insects in Organic Poultry Production
- Ontario Ministry of Agriculture and Food. 2013
- Parasite Management for Natural and Organic Poultry: Blackhead in Turkeys
- ATTRA. 2010
- ATTRA. 2010
- Plumage Scoring for Laying Hens [PDF - 104 kB ]
- Animal Welfare Task Force. 2009
- Animal Welfare Task Force. 2009
- Practical alternatives to battery cages for laying hens [PDF - 396 kB]
- Compassion in World Farming Trust. 2004
- Promoting health and welfare in organic laying hens: Recommendations to ensure hen health and welfare in organic husbandry
- HealthyHens consortium. 2016
- Reducing the Risk of Feather Pecking for Laying Hens in Organic Egg Production [PDF - 231 kB]
- Animal Welfare Task Force. 2009
- Animal Welfare Task Force. 2009
Scientific Results
Breeding and breed selection
- Breeding for better welfare: genetic goals for broiler chickens and their parents
- Animal Welfare (2012) 21: 147-155
- The effect of breed and feed-type on the sensory profile of breast meat in male broilers reared in an organic free-range system
- British Poultry Science (2010) 51: 515-524
- Performance of commercial laying hen genotypes on free range and organic farms in Switzerland, France and The Netherlands
- Organic Eprints. 2012
- Organic Eprints. 2012
Disease and parasite management
- Antimicrobial-Resistant Campylobacter in Organically and Conventionally Raised Layer Chickens
- Foodborne Pathogens and Disease (2017) 14: 29-34
- Effect of conventional and organic production practices on the prevalence and antimicrobial resistance of Campylobacter spp. in poultry
- Applied and Environmental Microbiology (2006) 72: 3600-3607
- Helminth infection is associated with hen mortality in Danish organic egg production
- Veterinary Record (2016) 179: 196
- Helminth infections in laying hens kept in organic free range systems in Germany
- Livestock Science (2011) 141: 182-187
- Lower Prevalence of Antibiotic-resistant Enterococci On U.S. Conventional Poultry Farms That Transitioned to Organic Practices
- Environmental Health Perspectives (2011) 119: 1622-1628
- Organic Turkey Flocks: A Reservoir of Streptococcus gallolyticus subspecies gallolyticus
- PLoS ONE (2015) 10(12): e0144412
- Potential of cranberry extracts as immuno-modulatory agent in organic broiler production
- Organic Eprints. 2014
- Organic Eprints. 2014
- Prevalence and antimicrobial susceptibility of thermophilic Campylobacter in organic and conventional broiler flocks
- Letters in Applied Microbiology (2001) 33: 269-274
- Prevalence and distribution of Salmonella in organic and conventional broiler poultry farms
- Foodborne Pathogens and Disease (2010) 7: 1363-1371
- Prevalence of Helicobacter pullorum in Conventional, Organic, and Free-Range Broilers and Typing of Isolates
- Applied and Environmental Microbiology (2011) 77: 479-484
- Strategies to improve performance and reduce preslaughter Salmonella in organic broilers
- Journal of Applied Poultry Research (2011) 20: 313-321
- Journal of Applied Poultry Research (2011) 20: 313-321
Egg production
- Are Local and Organic Claims Complements or Substitutes? A Consumer Preferences Study for Eggs
- Journal of Agricultural Economics (2014) 65: 49-67
- Developing a welfare assessment system for use in commercial organic egg production
- Animal Welfare (2003) 12: 649-653
- Ecological and economic evaluation of Dutch egg production systems
- Livestock Science (2011) 139: 109-121
- Effect of origin and composition of diet on ecological impact of the organic egg production chain
- Livestock Science (2013) 151: 271-283
- Free-range and organic farming: Eggshell contamination by mesophilic bacteria and unusual pathogens
- The Journal of Applied Poultry Research (2017) 26:509-517
- Functional and organic eggs as an alternative to conventional production: a conjoint analysis of consumers' preferences
- Journal of the Science of Food and Agriculture (2011) 91: 532-538
- Laying hen performance in different production systems; why do they differ and how to close the gap? Results of discussions with groups of farmers in The Netherlands, Switzerland and France, benchmarking and model calculations
- Organic and free-range egg production
- Organic Eprints. 2011
- Organic egg production. I: Effects of different dietary protein contents and forage material on organic egg production, nitrogen and mineral retention and total tract digestibility of nutrients of two hen genotypes
- Animal Feed Science and Technology (2015) 209: 186-201
- Organic egg production. II: The quality of organic eggs is influenced by hen genotype, diet and forage material analyzed by physical parameters, functional properties and sensory evaluation
- Animal Feed Science and Technology (2015) 208: 182-197
- Review: The effect of grass and herbs in organic egg production on egg fatty acid composition, egg yolk colour and sensory properties
- Livestock Science (2016) 194: 37-43
- Vitamins A, E and fatty acid composition of the eggs of caged hens and pastured hens
- Renewable Agriculture and Food Systems (2010) 25:45-54
Feed
- Alternative feeding strategies and genetics for providing adequate methionine in organic poultry diets with limited use of synthetic amino acids
- World’s Poultry Science Journal (2016) 72: 168-177
- Choice feeding of protein concentrate and grain to organic meat chickens
- Journal of Applied Poultry Research (2016) 25: 156-164
- The effect of breed and feed-type on the sensory profile of breast meat in male broilers reared in an organic free-range system
- British Poultry Science (2010) 51: 515-524
- Effect of Melissa officinalis supplementation on growth performance and meat quality characteristics in organically produced broilers
- British Poultry Science (2014) 55: 774-784
- Effect of an unusual source of methionine on the performance of organic chickens
- Organic Agriculture (2016) 6: 191-197
- The effect of chopped, extruded and pelleted alfalfa silage on the egg quality of organic laying hens
- Animal Feed Science and Technology (2016) 219: 94-101
- Ethics of feeding: The omnivore dilemma
- Animal Welfare (2010) 19: 37-44
- Insect and legume-based protein sources to replace soybean cake in an organic broiler diet: Effects on growth performance and physical meat quality
- Renewable Agriculture and Food Systems (2017) 32: 21-27
- Production and egg quality in layers fed organic diets with mussel meal
- animal (2011) 5: 387-393
- Silage of young harvested alfalfa (Medicago sativa) as home-grown protein feed in the organic feeding of laying hens
- Organic Agriculture (2017) 7: 153-163
Foraging and pasture management
- Assessment of a global positioning system to evaluate activities of organic chickens at pasture
- Journal of Applied Poultry Research (2010) 19: 213-218
- Effects of paddock management on vegetation, nutrient accumulation, and internal parasites in laying hens
- Journal of Applied Poultry Research (2013) 22: 334-343
- Effects of pasture management on poultry welfare and meat quality in organic poultry production systems
- World’s Poultry Science Journal (2015) 71: 375-384
- Growth performance of fast-growing broilers reared under different types of production systems with outdoor access: Implications for organic and alternative production systems
- The Journal of Applied Poultry Research (2014) 23: 212-220
- Integration of organic animal production into land use with special reference to swine and poultry
- Livestock Production Science (2004) 90: 11-26
- New Production Systems: Evaluation of Organic Broiler Production in Denmark
- Journal of Applied Poultry Research (2003) 12: 493-508
- Journal of Applied Poultry Research (2003) 12: 493-508
- Organic broilers in floorless pens on pasture
- Organic Eprints. 2008
- Plant and soil intake by organic broilers reared in tree- or grass-covered plots as determined by means of n-alkanes and of acid-insoluble ash
- animal (2015) 9: 888-898
- Run management for organic layers
- Organic Eprints. 2012
- Organic Eprints. 2012
- Soil fertility and crop growth under poultry/crop integration
- Renewable Agriculture and Food Systems (2013) 28: 173-182
- Total loss and distribution of nitrogen and phosphorus in the outdoor run of organic laying hens
- British Poultry Science (2012) 53: 731-740
- Use of the range area in organic egg production systems: effect of climatic factors, flock size, age and artificial cover
- British Poultry Science (2005) 46: 1-8
- What makes free-range broiler chickens range? In situ measurement of habitat preference
- Animal Behaviour (2003) 66: 151-160
Housing
- Can substrate in early rearing prevent feather pecking in adult laying hens?
- Animal Welfare (2013) 22: 305-314
- The effects of four types of enrichment on feather-pecking behaviour in laying hens housed in barren environments
- Animal Welfare (2010) 19: 429-435
- The influence of access to aerial perches on fearfulness, social behaviour and production parameters in free-range laying hens
- Applied Animal Behaviour Science (2012) 142: 51-60
- Life cycle assessment of Canadian egg products, with differentiation by hen housing system type
- Journal of Cleaner Production (2017) 152: 167-180
Meat quality
- Comparison of meat quality and fatty acid profile in slow-growing chicken genotypes fed diets supplemented with Origanum vulgare or Melissa officinalis leaves under the organic system under the organic system
- Organic Eprints. 2015
- Effect of Conventional versus Organic Method of Production on the Broiler Carcass and Meat Quality
- Meat Science (2002) 60: 219-225
- Identifying Ingredients That Delay Outgrowth of Listeria monocytogenes in Natural, Organic, and Clean-Label Ready-to-Eat Meat and Poultry Products
- Journal of Food Protection (2013) 76: 1366-1376
- Improved texture of breast meat after a short finishing feeding period of broilers in an organic free-range system
- Organic Eprints. 2013
- Organic Eprints. 2013
- Organic poultry: Consumer perceptions, opportunities, and regulatory issues
- Journal of Applied Poultry Research (2009) 29: 765-802
- Sensory profiles of breast meat from broilers reared in an organic niche production system and conventional standard broilers
- Journal of the Science of Food and Agriculture (2012) 92: 258-265
Welfare
- Associations between and development of welfare indicators in organic layers
- Animal (2016) 10: 953-960
- Chicken welfare is influenced more by housing conditions than by stocking density
- Nature (2004) 427: 342-344
- Developing a welfare assessment system for use in commercial organic egg production
- Animal Welfare (2003) 12: 649-653
- Environmental and Management Factors Affecting the Welfare of Chickens on Commercial Farms in the United Kingdom and Denmark Stocked At Five Densities
- Poultry Science (2005) 84: 1155
- Feather-pecking and injurious pecking in organic laying hens in 107 flocks from eight European countries
- Animal Welfare (2017) 26: 355-363
- Forced to crowd or choosing to cluster? Spatial distribution indicates social attraction in broiler chickens
- Animal Behavior (2006) 72: 1291-1300
- Health and Welfare in Dutch Organic Laying Hens
- Organic Eprints. 2014
- Influence of rearing and lay risk factors on propensity for feather damage in laying hens
- British Poultry Science (2010) 51: 725-733
- Pain issues in poultry
- Applied Animal Behaviour Science (2011) 135: 252-258
- The prevention and control of feather pecking: application to commercial systems
- World’s Poultry Science Journal (2013) 69: 775-788
- The prevention and control of feather pecking in laying hens: identifying the underlying principles
- World’s Poultry Science Journal (2013) 69: 361-374
- A review of key health-related welfare issues in organic poultry production
- World’s Poultry Science Journal (2009) 65: 649-684
- The risk factors affecting the development of vent pecking and cannibalism in free-range and organic laying hens
- Animal Welfare (2015) 24: 101-111
- Welfare implications of nipple drinkers for broiler chickens
- Animal Welfare (2008) 17: 1-10
- The welfare of laying hens in conventional cages and alternative systems: first steps towards a quantitative comparison
- Animal Welfare (2013) 22: 57-65
- Welfare of organic poultry
- World’s Poultry Science Journal (2009) 65: 104-112