Where do eggs come from?

In 2024 China produced 30.9 million tonnes, 35% of the world's 89.3 million tonnes (FAOSTAT). India followed with 9.1%, then Indonesia (7.4%), United States (7.2%) and Brazil (4.1%). The top five account for 62%, 172 countries reported output and 25% came from outside the top ten. World production changed +27% over the ten years to 2024 and +1% on the previous year.

The producer list is close to a list of populations, because egg production follows people and feed rather than climate. A modern laying house is enclosed and climate-controlled, and the same hybrid layer genetics and similar feed formulations are used from Java to Iowa, so latitude sets little.

Two industries share the word. Table eggs are laid for eating; hatching eggs are laid to become broiler chicks and never reach a shop. The series here counts hen eggs in shell, so duck and quail eggs, which matter in parts of Asia, sit outside it.

Netherlands was the largest exporter of eggs (HS 0407) in 2024 with 17% of world export value, ahead of United States (10%), on world trade of $5.9 billion (CEPII BACI). Germany was the largest importer with 14%.

Trade is small against production, and it is regional rather than global. Eggs are bulky, fragile and short-lived, so they move by road between neighbors more readily than by sea between continents: Dutch and Polish eggs into Germany, Turkish eggs into the Middle East. Part of the flow is hatching eggs shipped to stock broiler farms, which is trade in future chickens rather than breakfast.

Because the traded share is thin, it responds violently to disease. A country that loses a large part of its laying flock bids for eggs abroad and appears high in the import table for a season, then drops out once its own hens are laying again.

There is no futures market in eggs and no free public benchmark price carried on this site, so none is quoted here. Eggs are sold on weekly negotiated wholesale quotations and on retail supply contracts that are formula-priced off private market assessments, with cooperatives pooling members' output and paying an average. Housing system, egg weight, grade and pack format each carry their own price.

The visible references are government market reports in the main producing countries and the weekly average prices European member states report to the European Commission. Cage, barn, free-range and organic eggs trade at settled premiums to each other, so a single national egg price says less as the housing mix shifts, and retailers increasingly contract by system rather than by the egg.

An outbreak in a laying complex is followed by depopulation, and a replacement hen does not lay until roughly five months after the chick is placed. That lag turns one winter of losses into most of a year of reduced supply, which is why egg prices move faster on disease news than on feed.

Grain and oilseed meal make up the largest part of the cost of producing an egg, so movements in corn and soybean meal reach the farm gate within months. Feed is bought locally, which is one reason egg prices differ between countries facing the same world grain market.

Cage bans and retailer commitments to cage-free supply force producers to rebuild sheds at lower stocking density. The capital cost and the lost bird places raise the cost per egg, and the transition takes years, so rules announced long in advance still tighten supply when they bite.

Laying flocks are placed in batches and produce for about a year before being replaced or molted. Supply adjusts with a lag set by biology rather than by price, so producers who cut placements in a weak market create a shortage a year later.

Eggs cannot be stored for long or shipped far without loss, so a local shortage cannot be covered from another continent in the way a grain deficit can. Regional prices can diverge and stay apart, because the arbitrage that would close the gap does not physically work.

Layer chicks are reared in pullet houses for about four months, then moved into the laying house as they come into lay. A commercial hen lays close to an egg a day through a production cycle of roughly a year, after which she is replaced or molted to start a shorter second cycle.

Eggs roll onto collection belts and travel to a grading floor, where they are candled for cracks and blood spots, weighed into size classes and packed. Practice then splits. The United States washes eggs and requires refrigeration, which removes surface contamination along with the natural cuticle; the European Union leaves class A eggs unwashed at ambient temperature, on the argument that the cuticle is the better defense.

Eggs that fail grading or are produced for manufacture go to breaking plants, where they are cracked, separated, pasteurized and sold as liquid, frozen or dried whole egg, white or yolk.

Most eggs are eaten as eggs, at home or in food service. The next largest outlet is food manufacture, which buys egg in liquid, frozen or powdered form for mayonnaise and sauces, bakery, pasta and prepared meals, where the egg is bought for what it does rather than what it is: whites whip and set, yolks emulsify and color.

Shells are milled for calcium supplements and feed, spent hens enter processed meat and pet food, and surplus eggs go to fertilizer. Embryonated eggs are also the substrate on which much of the world's influenza vaccine is grown, which makes hatching egg supply a public health input as well as an agricultural one.

The chain is short, local and rebuilt every year. Grandparent and parent stock produce day-old layer chicks, pullet rearers grow them out, and a packing center grades and boxes for retailers usually within the same country.

The concentration is upstream. A very small number of primary breeding companies supply the hybrid laying genetics used across most of the world, and their multiplication pyramids take years to expand, so the genetic base of egg supply is narrower than the number of farms suggests.

The chokepoints are biosecurity and pullets. A large complex can be emptied by one infection, and the queue for replacement birds is set by hatchery capacity booked months ahead. Feed mills and packing centers are the other weak points, because a laying flock cannot pause: hens eat and lay whether or not the eggs can be moved.