- Jul 22, 2012
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Hi guys i have alot of old hens and i was wondering how long they could possibly live for.
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The guiness book of records shows the world's oldest chicken to have lived 15 years.
Chickens will continue to lay throughout their lives, albeit at a reduced rate. A Univ of Florida study showed chickens decrease their egg laying at a rather consistent 10% per year after their first year.
http://edis.ifas.ufl.edu/pdffiles/ps/ps02900.pdf
Since they're birds and not mammels, they don't experience menopause and will lay up to the time they die.