{"id": 783620, "name": "Number of cage-free hens", "unit": "hens", "createdAt": "2023-08-02T09:48:23.000Z", "updatedAt": "2024-09-30T16:34:59.000Z", "coverage": "", "timespan": "2013-2020", "datasetId": 6166, "shortUnit": "", "columnOrder": 0, "shortName": "number_of_hens_cage_free", "catalogPath": "grapher/animal_welfare/2023-08-01/global_hen_inventory/global_hen_inventory#number_of_hens_cage_free", "licenses": "[{\"url\": \"https://welfarefootprint.org/research-projects/laying-hens/\", \"name\": \"CC BY 4.0\"}]", "type": "float", "grapherConfigIdETL": "0191c16a-91ac-722e-9558-a69ae96ef6ea", "dataChecksum": "8aa50fdf15bcb04b895e0d7374cc3cd3", "metadataChecksum": "b3794e3ccbb275f60bfcb2eeb8157d7f", "datasetName": "Global hen inventory (Welfare Footprint Project, 2022)", "datasetVersion": "2023-08-01", "nonRedistributable": false, "display": {"unit": "hens", "numDecimalPlaces": 0}, "schemaVersion": 2, "presentation": {"topicTagsLinks": [], "faqs": []}, "descriptionKey": [], "dimensions": {"years": {"values": [{"id": 2013}, {"id": 2018}, {"id": 2016}, {"id": 2017}, {"id": 2020}, {"id": 2019}]}, "entities": {"values": [{"id": 17, "name": "Algeria", "code": "DZA"}, {"id": 21, "name": "Argentina", "code": "ARG"}, {"id": 22, "name": "Armenia", "code": "ARM"}, {"id": 23, "name": "Australia", "code": "AUS"}, {"id": 24, "name": "Austria", "code": "AUT"}, {"id": 25, "name": "Azerbaijan", "code": "AZE"}, {"id": 30, "name": "Belarus", "code": "BLR"}, {"id": 4, "name": "Belgium", "code": "BEL"}, {"id": 37, "name": "Brazil", "code": "BRA"}, {"id": 39, "name": "Bulgaria", "code": "BGR"}, {"id": 44, "name": "Canada", "code": "CAN"}, {"id": 172, "name": "Chile", "code": "CHL"}, {"id": 171, "name": "China", "code": "CHN"}, {"id": 170, "name": "Colombia", "code": "COL"}, {"id": 165, "name": "Croatia", "code": "HRV"}, {"id": 164, "name": "Cuba", "code": "CUB"}, {"id": 163, "name": "Cyprus", "code": "CYP"}, {"id": 162, "name": "Czechia", "code": "CZE"}, {"id": 161, "name": "Denmark", "code": "DNK"}, {"id": 201, "name": "Ecuador", "code": "ECU"}, {"id": 65, "name": "Egypt", "code": "EGY"}, {"id": 156, "name": "Estonia", "code": "EST"}, {"id": 155, "name": "Finland", "code": "FIN"}, {"id": 3, "name": "France", "code": "FRA"}, {"id": 152, "name": "Georgia", "code": "GEO"}, {"id": 6, "name": "Germany", "code": "DEU"}, {"id": 150, "name": "Ghana", "code": "GHA"}, {"id": 138, "name": "Hungary", "code": "HUN"}, {"id": 137, "name": "India", "code": "IND"}, {"id": 135, "name": "Iran", "code": "IRN"}, {"id": 2, "name": "Ireland", "code": "IRL"}, {"id": 8, "name": "Italy", "code": "ITA"}, {"id": 14, "name": "Japan", "code": "JPN"}, {"id": 131, "name": "Kazakhstan", "code": "KAZ"}, {"id": 126, "name": "Kyrgyzstan", "code": "KGZ"}, {"id": 122, "name": "Latvia", "code": "LVA"}, {"id": 120, "name": "Libya", "code": "LBY"}, {"id": 119, "name": "Lithuania", "code": "LTU"}, {"id": 210, "name": "Luxembourg", "code": "LUX"}, {"id": 212, "name": "Malta", "code": "MLT"}, {"id": 113, "name": "Mexico", "code": "MEX"}, {"id": 110, "name": "Morocco", "code": "MAR"}, {"id": 5, "name": "Netherlands", "code": "NLD"}, {"id": 106, "name": "New Zealand", "code": "NZL"}, {"id": 103, "name": "Nigeria", "code": "NGA"}, {"id": 102, "name": "Norway", "code": "NOR"}, {"id": 97, "name": "Peru", "code": "PER"}, {"id": 11, "name": "Poland", "code": "POL"}, {"id": 95, "name": "Portugal", "code": "PRT"}, {"id": 92, "name": "Romania", "code": "ROU"}, {"id": 12, "name": "Russia", "code": "RUS"}, {"id": 85, "name": "Slovakia", "code": "SVK"}, {"id": 83, "name": "Slovenia", "code": "SVN"}, {"id": 81, "name": "South Africa", "code": "ZAF"}, {"id": 9, "name": "Spain", "code": "ESP"}, {"id": 10, "name": "Sweden", "code": "SWE"}, {"id": 7, "name": "Switzerland", "code": "CHE"}, {"id": 76, "name": "Tajikistan", "code": "TJK"}, {"id": 70, "name": "Turkey", "code": "TUR"}, {"id": 69, "name": "Turkmenistan", "code": "TKM"}, {"id": 67, "name": "Ukraine", "code": "UKR"}, {"id": 72, "name": "United Arab Emirates", "code": "ARE"}, {"id": 1, "name": "United Kingdom", "code": "GBR"}, {"id": 13, "name": "United States", "code": "USA"}, {"id": 63, "name": "Uruguay", "code": "URY"}, {"id": 62, "name": "Uzbekistan", "code": "UZB"}, {"id": 238, "name": "Venezuela", "code": "VEN"}]}}, "origins": [{"id": 103, "title": "Global hen inventory", "producer": "Welfare Footprint Project", "citationFull": "Welfare Footprint Project based on various sources.\n- Algeria: [Windhorst, 2017. Housing system in laying hen husbandry (part 2). Table 4.](https://zootecnicainternational.com/poultry-facts/housing-systems-laying-hen-husbandry-second-part/)\n- Argentina: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Armenia: [Windhorst, 2017. Housing system in laying hen husbandry (part 2). Table 4.](https://zootecnicainternational.com/poultry-facts/housing-systems-laying-hen-husbandry-second-part/)\n- Australia: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Austria: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Azerbaijan: [Windhorst, 2017. Housing system in laying hen husbandry (part 2). Table 4.](https://zootecnicainternational.com/poultry-facts/housing-systems-laying-hen-husbandry-second-part/)\n- Bangladesh: [Windhorst, 2020. Dynamics and patterns of the egg industry in the Emerging Market Countries between 2007 and 2017. Zootecnica International.](https://zootecnicainternational.com/featured/dynamics-and-patterns-of-the-egg-industry-in-the-emerging-market-countries-between-2007-and-2017/)\n- Belarus: [Windhorst, 2017. Housing system in laying hen husbandry (part 2). Table 4.](https://zootecnicainternational.com/poultry-facts/housing-systems-laying-hen-husbandry-second-part/)\n- Belgium: [Sector Dialogues EU-BR 2019 (Ministry of Agriculture).](https://www.gov.br/agricultura/pt-br/assuntos/producao-animal/arquivos-publicacoes-bem-estar-animal/XGUIAGALINHAS2019.pdf/view)\n- Brazil: [IBGE: Produ\u00e7\u00e3o de Ovos de Galinha - POG (2019);](https://www.ibge.gov.br/estatisticas/economicas/agricultura-e-pecuaria/9216-pesquisa-trimestral-da-producao-de-ovos-de-galinha.html?edicao=26352&t=downloads) [Proportions in 'Sector Dialogues EU-BR 2019 (Ministry of Agriculture)'.](https://www.gov.br/agricultura/pt-br/assuntos/producao-animal/arquivos-publicacoes-bem-estar-animal/XGUIAGALINHAS2019.pdf/view)\n- Brunei: [Windhorst, 2018. Dynamics and patterns of the egg industry in APEC member countries. IEC Report.](http://www.fao.org/poultry-production-products/resources/publications/en/?page=2&ipp=10&tx_dynalist_pi1%5Bpar%5D=YToxOntzOjE6IkwiO3M6MToiMCI7fQ%3D%3D)\n- Bulgaria: [Egg Dashboard. 2018. European Commission (DG ESTAT, DG AGRI), MSs notifications (CIR) (EU) 2017/1185 and Regulation (EC) 617/2008, GTA.](https://ec.europa.eu/info/sites/info/files/food-farming-fisheries/farming/documents/eggs-dashboard_en.pdf)\n- Canada: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Chile: [Windhorst, 2018. Dynamics and patterns of the egg industry in APEC member countries. IEC Report; Proportion by system: Oficina de Estudios y Politicas Agrarias (https://www.odepa.gob.cl/rubros/huevos).](http://www.fao.org/poultry-production-products/resources/publications/en/?page=2&ipp=10&tx_dynalist_pi1%5Bpar%5D=YToxOntzOjE6IkwiO3M6MToiMCI7fQ%3D%3D)\n- China: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Colombia: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Croatia: [Egg Dashboard. 2018. European Commission (DG ESTAT, DG AGRI), MSs notifications (CIR) (EU) 2017/1185 and Regulation (EC) 617/2008, GTA.](https://ec.europa.eu/info/sites/info/files/food-farming-fisheries/farming/documents/eggs-dashboard_en.pdf)\n- Cuba: [Windhorst, 2017. Housing system in laying hen husbandry (part 2). Table 4.](https://zootecnicainternational.com/poultry-facts/housing-systems-laying-hen-husbandry-second-part/)\n- Cyprus: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Czechia: [Egg Dashboard. 2018. European Commission (DG ESTAT, DG AGRI), MSs notifications (CIR) (EU) 2017/1185 and Regulation (EC) 617/2008, GTA.](https://ec.europa.eu/info/sites/info/files/food-farming-fisheries/farming/documents/eggs-dashboard_en.pdf)\n- Denmark: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Ecuador: [Windhorst, 2017. Housing system in laying hen husbandry (part 2). Table 4.](https://zootecnicainternational.com/poultry-facts/housing-systems-laying-hen-husbandry-second-part/)\n- Egypt: [Windhorst, 2017. Housing system in laying hen husbandry (part 2). Table 4.](https://zootecnicainternational.com/poultry-facts/housing-systems-laying-hen-husbandry-second-part/)\n- Estonia: [Egg Dashboard. 2018. European Commission (DG ESTAT, DG AGRI), MSs notifications (CIR) (EU) 2017/1185 and Regulation (EC) 617/2008, GTA.](https://ec.europa.eu/info/sites/info/files/food-farming-fisheries/farming/documents/eggs-dashboard_en.pdf)\n- Finland: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- France: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Georgia: [Windhorst, 2017. Housing system in laying hen husbandry (part 2). Table 4.](https://zootecnicainternational.com/poultry-facts/housing-systems-laying-hen-husbandry-second-part/)\n- Germany: [Sector Dialogues EU-BR 2019 (Ministry of Agriculture);](https://www.gov.br/agricultura/pt-br/assuntos/producao-animal/arquivos-publicacoes-bem-estar-animal/XGUIAGALINHAS2019.pdf/view) [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Ghana: [Windhorst, 2017. Housing system in laying hen husbandry (part 2). Table 4.](https://zootecnicainternational.com/poultry-facts/housing-systems-laying-hen-husbandry-second-part/)\n- Hungary: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- India: [Windhorst, 2020. Dynamics and patterns of the egg industry in the Emerging Market Countries between 2007 and 2017. Zootecnica International;](https://zootecnicainternational.com/featured/dynamics-and-patterns-of-the-egg-industry-in-the-emerging-market-countries-between-2007-and-2017/) [IEC Annual Review 2019.](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Indonesia: [Windhorst, 2020. Dynamics and patterns of the egg industry in the Emerging Market Countries between 2007 and 2017. Zootecnica International.](https://zootecnicainternational.com/featured/dynamics-and-patterns-of-the-egg-industry-in-the-emerging-market-countries-between-2007-and-2017/)\n- Iran: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Ireland: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Italy: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Japan: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Kazakhstan: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Kyrgyzstan: [Windhorst, 2017. Housing system in laying hen husbandry (part 2). Table 4.](https://zootecnicainternational.com/poultry-facts/housing-systems-laying-hen-husbandry-second-part/)\n- Latvia: [Sector Dialogues EU-BR 2019 (Ministry of Agriculture).](https://www.gov.br/agricultura/pt-br/assuntos/producao-animal/arquivos-publicacoes-bem-estar-animal/XGUIAGALINHAS2019.pdf/view)\n- Libya: [Windhorst, 2017. Housing system in laying hen husbandry (part 2). Table 4.](https://zootecnicainternational.com/poultry-facts/housing-systems-laying-hen-husbandry-second-part/)\n- Lithuania: [Egg Dashboard. 2018. European Commission (DG ESTAT, DG AGRI), MSs notifications (CIR) (EU) 2017/1185 and Regulation (EC) 617/2008, GTA.](https://ec.europa.eu/info/sites/info/files/food-farming-fisheries/farming/documents/eggs-dashboard_en.pdf)\n- Luxembourg: [Egg Dashboard. 2018. European Commission (DG ESTAT, DG AGRI), MSs notifications (CIR) (EU) 2017/1185 and Regulation (EC) 617/2008, GTA.](https://ec.europa.eu/info/sites/info/files/food-farming-fisheries/farming/documents/eggs-dashboard_en.pdf)\n- Malaysia: [Windhorst, 2020. Dynamics and patterns of the egg industry in the Emerging Market Countries between 2007 and 2017. Zootecnica International.](https://zootecnicainternational.com/featured/dynamics-and-patterns-of-the-egg-industry-in-the-emerging-market-countries-between-2007-and-2017/)\n- Malta: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Mexico: [Compendio de Indicadores Economicos del Sector Agricola (UNA).](https://www.gob.mx/agricultura)\n- Morocco: [Windhorst, 2017. Housing system in laying hen husbandry (part 2). Table 4.](https://zootecnicainternational.com/poultry-facts/housing-systems-laying-hen-husbandry-second-part/)\n- Netherlands: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- New Zealand: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Nigeria: [Windhorst, 2020. Dynamics and patterns of the egg industry in the Emerging Market Countries between 2007 and 2017. Zootecnica International;](https://zootecnicainternational.com/poultry-facts/housing-systems-laying-hen-husbandry-second-part/) [Windhorst, 2017. Housing system in laying hen husbandry (part 2). Table 4.](https://zootecnicainternational.com/featured/dynamics-and-patterns-of-the-egg-industry-in-the-emerging-market-countries-between-2007-and-2017/)\n- Norway: [Animalia. KJ\u00d8TTETS TILSTAND 2020. Status i norsk kj\u00f8tt- og eggproduksjon.](https://www.animalia.no/contentassets/6c1457fa25574ec7b254f18f560d3984/kt20-komplett-origi-web.pdf)\n- Pakistan: [Windhorst, 2020. Dynamics and patterns of the egg industry in the Emerging Market Countries between 2007 and 2017. Zootecnica International.](https://zootecnicainternational.com/featured/dynamics-and-patterns-of-the-egg-industry-in-the-emerging-market-countries-between-2007-and-2017/)\n- Papua New Guinea: [Windhorst, 2018. Dynamics and patterns of the egg industry in APEC member countries;](http://www.fao.org/poultry-production-products/resources/publications/en/?page=2&ipp=10&tx_dynalist_pi1%5Bpar%5D=YToxOntzOjE6IkwiO3M6MToiMCI7fQ%3D%3D) [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Peru: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Philippines: [Windhorst, 2020. Dynamics and patterns of the egg industry in the Emerging Market Countries between 2007 and 2017. Zootecnica International.](https://zootecnicainternational.com/featured/dynamics-and-patterns-of-the-egg-industry-in-the-emerging-market-countries-between-2007-and-2017/)\n- Poland: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Portugal: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- South Korea: [Windhorst, 2020. Dynamics and patterns of the egg industry in the Emerging Market Countries between 2007 and 2017. Zootecnica International.](https://zootecnicainternational.com/featured/dynamics-and-patterns-of-the-egg-industry-in-the-emerging-market-countries-between-2007-and-2017/)\n- Romania: [Egg Dashboard. 2018. European Commission (DG ESTAT, DG AGRI), MSs notifications (CIR) (EU) 2017/1185 and Regulation (EC) 617/2008, GTA.](https://ec.europa.eu/info/sites/info/files/food-farming-fisheries/farming/documents/eggs-dashboard_en.pdf)\n- Russia: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Saudi Arabia: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Singapore: [Windhorst, 2018. Dynamics and patterns of the egg industry in APEC member countries. IEC Report.](http://www.fao.org/poultry-production-products/resources/publications/en/?page=2&ipp=10&tx_dynalist_pi1%5Bpar%5D=YToxOntzOjE6IkwiO3M6MToiMCI7fQ%3D%3D)\n- Slovakia: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Slovenia: [Egg Dashboard. 2018. European Commission (DG ESTAT, DG AGRI), MSs notifications (CIR) (EU) 2017/1185 and Regulation (EC) 617/2008, GTA.](https://ec.europa.eu/info/sites/info/files/food-farming-fisheries/farming/documents/eggs-dashboard_en.pdf)\n- South Africa: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Spain: [Ministerio de Agricultura Pesca y Alimentaci\u00f3n; IEC Annual Review 2019.](https://www.mapa.gob.es/es/ganaderia/temas/produccion-y-mercados-ganaderos/dashboardhuevosabril2020_tcm30-537501.pdf)\n- Sweden: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Switzerland: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Tajikistan: [Windhorst, 2017. Housing system in laying hen husbandry (part 2). Table 4.](https://zootecnicainternational.com/poultry-facts/housing-systems-laying-hen-husbandry-second-part/)\n- Taiwan: [Windhorst, 2018. Dynamics and patterns of the egg industry in APEC member countries. IEC Report.](http://www.fao.org/poultry-production-products/resources/publications/en/?page=2&ipp=10&tx_dynalist_pi1%5Bpar%5D=YToxOntzOjE6IkwiO3M6MToiMCI7fQ%3D%3D)\n- Thailand: [Windhorst, 2020. Dynamics and patterns of the egg industry in the Emerging Market Countries between 2007 and 2017. Zootecnica International.](https://zootecnicainternational.com/featured/dynamics-and-patterns-of-the-egg-industry-in-the-emerging-market-countries-between-2007-and-2017/)\n- Turkey: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- Turkmenistan: [Windhorst, 2017. Housing system in laying hen husbandry (part 2). Table 4.](https://zootecnicainternational.com/poultry-facts/housing-systems-laying-hen-husbandry-second-part/)\n- Ukraine: [Windhorst, 2020. Dynamics and patterns of the egg industry in the Emerging Market Countries between 2007 and 2017. Zootecnica International;](https://zootecnicainternational.com/poultry-facts/housing-systems-laying-hen-husbandry-second-part/) [Windhorst, 2017. Housing system in laying hen husbandry (part 2). Table 4.](https://zootecnicainternational.com/featured/dynamics-and-patterns-of-the-egg-industry-in-the-emerging-market-countries-between-2007-and-2017/)\n- United Arab Emirates: [Windhorst, 2017. Housing system in laying hen husbandry (part 2). Table 4.](https://zootecnicainternational.com/poultry-facts/housing-systems-laying-hen-husbandry-second-part/)\n- United Kingdom: [International Egg Commission (IEC) Annual Review 2019 (no longer public, and only available to IEC members).](http://internationalegg.com/wp-content/uploads/2019/10/IEC-Annual-Review-2019.pdf)\n- United States: [USDA. Chicken and Eggs. National Agricultural Statistics Service (NASS), Agricultural Statistics Board, United States Department of Agriculture (USDA). United Egg Producers.](https://unitedegg.com/facts-stats/)\n- Uruguay: [Encuesta Postura Comercial, 2016. Estad\u00edsticas Agropecuarias (DIEA).](https://www.gub.uy/ministerio-ganaderia-agricultura-pesca/datos-y-estadisticas/estadisticas/encuesta-postura-comercial-2016)\n- Uzbekistan: [Windhorst, 2017. Housing system in laying hen husbandry (part 2). Table 4.](https://zootecnicainternational.com/poultry-facts/housing-systems-laying-hen-husbandry-second-part/)\n- Venezuela: [Windhorst, 2017. Housing system in laying hen husbandry (part 2). Table 4.](https://zootecnicainternational.com/poultry-facts/housing-systems-laying-hen-husbandry-second-part/)\n- Vietnam: [Windhorst, 2018. Dynamics and patterns of the egg industry in APEC member countries. IEC Report.](http://www.fao.org/poultry-production-products/resources/publications/en/?page=2&ipp=10&tx_dynalist_pi1%5Bpar%5D=YToxOntzOjE6IkwiO3M6MToiMCI7fQ%3D%3D)\n", "urlMain": "https://welfarefootprint.org/research-projects/laying-hens/", "dateAccessed": "2023-08-01", "datePublished": "2022-12-06"}]}