<aside> 📌 Last updated June 24th, 2024.
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Laying hens come from specialized lines producing eggs for human consumption. Eggs destined to become laying hens are incubated in specialized buildings called "hatcheries". Only female chicks are kept, male chicks being eliminated at birth. Once they have become pullets, at the age of
Male chicks are eliminated at birth, while female chicks are selected and kept. Pullets begin their laying cycle at the age of 4-5 months, and it lasts around 12-13 months, during which the hen can lay around 300 eggs. Laying hens generally go through one laying cycle before being culled and sent to the slaughterhouse, where their meat is sold, mainly in processed form.
There are 5 types of laying hen farms, identified on packaging and eggs by a code:
Soil-based, free-range and organic farming methods are known as "alternative".
There are also "Label Rouge" farms (identified by code 1) that respect 5 key principles:.
Based on available data (FAO, IEC, Eurostat and national sources), ITAVI estimates that global production of hen eggs for consumption will amount to almost 79.6 million tonnes of shell egg equivalent (teoc) in 2022, or around 1,490 billion eggs. This represented a drop of 0.8% compared to 2021, due in particular to the decline in the USA (- 3.1%) and the EU-27 (- 0.6%).
In 2022, inflation, the war in Ukraine and avian influenza had contrasting impacts on the world market. Avian influenza is a highly contagious viral animal disease. In its highly pathogenic form, it can cause up to 100% flock mortality and periods of significant production losses. In 2022, the USA was the country most affected by the epizootic, with over 45 million layers affected.
China remains the world's leading producer of eggs for consumption, with 32% of global production, ahead of the European Union-27 (8%) and India (7.3%), which is ahead of the USA, previously in 3rd place (7.2%).
There are over 350 million laying hens in the European Union (EU). They produce nearly 6.7 million tonnes of eggs a year (source). In 2022, the top egg-producing countries in Europe were France, Germany and Spain, each accounting for 14% of production, or 14.4 billion eggs (896,000 tonnes).
In France, the region with the most laying hens is Brittany (42% in 2020), followed by Pays-de-la-Loire, Hauts de France and Auvergne-Rhône-Alpes. Egg consumption in France will amount to 235 eggs per capita in 2021 (average smoothed over 3 years), 36% of which in the form of egg products.
Dynamics and patterns in EU and USA egg and poultry meat production and trade - Scientific Figure on ResearchGate
The French egg industry faces a number of major economic, social, environmental and regulatory challenges - the 3 main ones being:
The carbon intensity of chicken eggs varies from country to country, between 2.63 kg CO2eq/kg and 4.07 kg CO2eq/kg (source).
Some scientists liken the carbon footprint of a dozen eggs to that of other animal proteins, such as milk. Ademe estimates the carbon intensity of chicken eggs at 3.17 kg CO2 eq/kg.
The main impact factors are methane and ammonia emissions from hens, even if these are much lower than those from cattle.
<aside> 🌡️ The Bleu-Blanc-Coeur (BBC) association approached ADEME in 2018 to include its products in the AGRIBALYSE database following work carried out with INRAE between 2013 and 2016. The results of this study show that - for a peril "from cradle to farm gate" - a BBC free-range egg (2.23 kgCO2/kg) would emit 20% less CO2 than a conventional free-range egg (2.78 kgCO2/kg) (source: Bleu Blanc Coeur)
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The impact on biodiversity is identified at several levels:
Egg production requires a significant amount of water for watering hens, producing feed grain and cleaning facilities.
The Water Footprint network estimates that the average global consumption of water for egg production is 3,300 m3 /tonne.
Organic Farming (AB):** Eggs bearing this label are produced according to organic farming standards. This means that hens are raised under more natural conditions, with access to open air, organic feed and no use of synthetic pesticides or antibiotics.
Label Rouge eggs respect 5 key principles:
Eggs are collected and sorted by hand twice a day, and the quality of Label Rouge eggs is regularly tested.
Protected Geographical Indication (PGI): This is a European label that designates a product whose characteristics are linked to the geographical area in which it is produced, manufactured or processed. The PGI label is based on the notion of know-how. This is notably the case for eggs from Loué, a village in Maine, whose poultry are raised in the open air on vast meadows, with a minimum space requirement of 4 m2 per animal. They are raised for a minimum of 84 days, compared with 40 for a standard chicken.
Œufs de France: The "Œufs de France" logo identifies eggs laid in France, by hens born and raised in the country.
Bleu-Blanc-Cœur label: This label focuses on improving the nutritional quality of agricultural products by influencing the diversity and quality of animal feed. Eggs bearing this label come from hens fed on specific feeds, such as linseed and rapeseed, as well as a mixture of peas and faba beans, partially replacing soya. In addition to the impact on the nutritional qualities of these eggs, this diversified feed reduces the carbon footprint.
Free-range eggs: This term indicates that the hens have access to the outdoors, but does not necessarily guarantee constant access or a specific space per bird. Conditions may vary from producer to producer.
Demeter : Les poules pondeuses des oeufs labellisés Demeter sont élevées avec des coqs (2 par tranche de 100 poules), afin de maintenir leur hiérarchie naturelle. Elles bénéficient d’un bâtiment d’élevage et d’un parcours extérieur adaptés et leur alimentation comprend une partie de grains entiers et répandus sur le sol pour qu’elles puissent gratter pour s’alimenter et ainsi conserver leur comportement spontané.
L'Itavi évalue l'impact environnemental des élevages de volailles, 2020
Volailles : les chercheurs veillent au grain, INRA
Oeufs Label Rouge : un élevage différent
Indication géographique protégée : oeufs de Loué
Fiche filière : oeufs, Agrimer
[Le bien-être et la protection des poules pondeuses](https://agriculture.gouv.fr/le-bien-etre-et-la-protection-des-poules-pondeuses#:~:text=Les poulettes commencent leur cycle,valorisée%2C principalement sous forme transformée.), Ministère de l’Agriculture et de la souveraineté alimentaire
Info filière, CNPO
[Fiche oeufs](https://agriculture.ec.europa.eu/farming/animal-products/eggs_fr#:~:text=Comités-,Présentation,tonnes d'%C5%93ufs%20par%20an.), Commission Européenne, Agriculture and rural development
Votre omelette vous coûte bien plus cher en bilan carbone que vous ne le pensez, 2018
L’impact environnemental des œufs en batterie, 2018
Environmental Impact of Eggs & Intensive Egg Farming, 2023
Environmental Impacts of Egg Production from a Life Cycle Perspective, 2022
[EU market situation for eggs](file:///Users/justinemorand/Downloads/0%20Circa%20%20egg%20no%20links.pdf), Expert Group for Agricultural Markets
Do you know how much water was used to grow your food and to produce your clothes and the things you buy?, Water footprint network