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Theyâre over two years old, and are running out of eggs. Chickens are born with a set number of eggs available for them to lay over their life, and depending on the breed, they may lay them over a relatively short time, or a more extended period.
Laying hens have been bred for egg laying. Modern commercial hens produce a very high yield of around 300 eggs a year. Chickens will naturally live for 6 or more years but after 12 months of laying, the henâs productivity will start to decline. This is when most commercial laying hens are slaughtered.odern commercial hens produce a very high yield of around 300 eggs a year. Chickens will naturally live for 6 or more years but after 12 months of laying, the henâs productivity will start to decline.