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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.
Commercial egg producers cull layers (called battery hens) when they're one to three years old. Meat birds are slaughtered at six to eight weeks. Backyard flocks see hens living more than five years, with a few living to eight or more years. The oldest recorded hen lived to a ripe old age of 16.y the time your hen reaches three years old, her egg output has dropped to 65 percent of her maximum laying ability. This declines rapidly to where if your hen lives to 10 years old, she will only lay 20 percent of the maximum egg output of her first year.