Eggs: Extraction
Why every farm buys its hens from a few breeders
What this tab covers How it is mined, drilled or grown, and processed into a tradeable form: the main methods compared, their unit economics, by-products, and the companies that do this work globally and in India.Eggs come from laying hens, nearly all from a few commercial genetic lines sold by global breeding companies. Morgan saw this dependence decades ago: Philippine producers bought Shaver hybrid hens from a Cargill subsidiary, because hybrids lose their traits after one generation. Pullets are reared for months before they lay. Feed, mostly maize and soybean meal, is the largest cost. Housing ranges from cages to barns and free range. Eggs are collected, graded and sold fresh, or broken into liquid and powdered egg for food makers.
Commercial eggs come from flocks of thousands to millions of hens kept in cages, cage-free barns or free-range systems. Conventional cages give the lowest cost per egg. Cage-free and free-range systems cost more but are now required or demanded in the EU, several US states and by many retailers. Backyard flocks still supply rural households in Asia and Africa. Feed is most of the cost, and avian influenza is the dominant supply risk, because a single infected farm can mean culling millions of hens.
Methods compared
| Method | Share of supply | Typical scale | Recovery / efficiency | By-products | Unit cost |
|---|---|---|---|---|---|
| Conventional and enriched cage systems | China 34.8% and India 8.3% of world egg output in 2024 (FAOSTAT) | India produced 147.3 billion eggs in 2024, up from 36.6 billion in 2000 (FAOSTAT) | India 218 eggs per hen a year (FAOSTAT 2024) | spent hens for meat, manure | n/a |
| Large integrated egg companies with mixed cage and cage-free housing (US) | US 6.1% of world egg output in 2024 (FAOSTAT); Cal-Maine sold 1.28 billion dozen in FY2025, about 15% of US output by calculation | US laying flock 374.7 million hens in 2024 (FAOSTAT) | US 290 eggs per hen a year (FAOSTAT 2024) | spent hens, manure | No cost published; Cal-Maine average net selling price $3.134 per dozen in FY2025 (company) |
| Cage-free barn, free-range and organic systems (EU, UK, growing in US) | n/a | n/a | n/a | spent hens, manure | n/a |
| Backyard and village flocks | n/a | n/a | Brazil's average rose from 137 eggs per hen in 2000 to 234 in 2024 as commercial flocks replaced village birds (FAOSTAT) | meat | n/a |
How each method works
Conventional and enriched cage systemsHens are housed in tiered cages with automatic feeding, watering and egg collection. Most Indian, Chinese and much US output comes from this system.
Lowest cost and easiest disease control per bird, but banned in the EU in its barren form and phased out by many buyers on welfare grounds.
FAOSTAT 2024 Large integrated egg companies with mixed cage and cage-free housing (US)Companies such as Cal-Maine own breeding, feed mills, layer houses and packing plants and sell to retailers under contract, increasingly from cage-free barns.
High productivity, but avian influenza culls can remove a large share of supply within weeks.
FAOSTAT 2024; Cal-Maine Foods FY2025 results (SEC filing) Cage-free barn, free-range and organic systems (EU, UK, growing in US)Hens move freely in barns, with outdoor access for free-range and organic flocks. Lower stocking density and more labour raise cost.
Meets welfare rules and retailer pledges, but costs more and outdoor flocks face more avian influenza risk from wild birds.
Backyard and village flocksHouseholds keep a few hens that scavenge and lay seasonally; eggs are eaten at home or sold locally.
Valuable for rural nutrition, but low output per hen.
FAOSTAT Unit economics are indicative ranges from the sources named; costs vary widely by deposit, region and year.Who does it: global
| Company | Country | Activity | Volume | Year | Source |
|---|---|---|---|---|---|
| Cal-Maine Foods | US | largest US shell egg producer and marketer | 1.283 billion dozen eggs sold (net sales $4.26 billion) | FY2025 (to May 2025) | Cal-Maine Foods Q4 and FY2025 results (SEC exhibit 99.1) |
| Proteína Animal (Proan) private; volumes not published | Mexico | egg producer | not published | n/a | |
| Rose Acre Farms private; volumes not published | US | egg producer | not published | n/a | |
| Granja Mantiqueira private; volumes not published | Brazil | egg producer | not published | n/a |
Who does it: India
| Company | Country | Activity | Volume | Year | Source |
|---|---|---|---|---|---|
| National Egg Coordination Committee (NECC) a price-setting body, not a producer; no volume applies | India | farmers' body that announces daily reference egg prices by zone (Namakkal, Hyderabad, Pune and others) | not published | n/a |
India is the second-largest egg producer, with 147.3 billion eggs (8.1 Mt) in 2024, 8.3% of world output, up fourfold since 2000 (FAOSTAT). Production is concentrated in commercial layer clusters run by many private farms; no single firm publishes national-scale volumes. Prices follow NECC's daily zone rates. India trades few eggs.