Compassion in World Farming said the store had agreed to change the labels on its egg boxes to include the term "Eggs from Caged Hens".
Tesco's decision follows a nationwide campaign in which CIWF challenged the company to "Tell us the whole truth about battery eggs". An NOP poll found battery eggs labelled "Fresh Eggs" or "Farm Fresh Eggs" were mistakenly thought to be from hens kept free-range by 34 per cent and 37 per cent of the public.
"This is a great day for both animal welfare and consumer choice," said Philip Lymbery, CIWF campaigns director. "It is now up to all remaining retailers ... to follow suit."