are generally kept either in large, windowless broiler
sheds or in pole barns which are netted on one side and
have natural light and ventilation. A small number of
turkeys are produced free-range. Broiler sheds contain
flocks of around 10,000 birds housed on litter (usually
are slaughtered at between 12 and 26 weeks, depending
on the size of bird being produced. The natural lifespan
of a turkey is around 10 years.