Chicken eggs will only hatch if they are fertilised by a cockerel and incubated for 21 days at 38C. A spokesman for Tesco said it was not the first time one of its eggs had been hatched.

The Araucana chicken from Chile and the Dongxiang and Lushi chickens from China (none of which are particularly common in North America) are known to lay pale-blue eggs. This is rare for a chicken ...

The chicken supplier Avara says the animals on its supplier farms will now have more space. ... In June, Tesco said the chickens it bought would be given 20 per-cent more space within a year.

British diners are more used to the normal, light-brown variety - but blue chicken eggs could make a surprise appearance on supermarket shelves. Nottingham scientists have solved the riddle of why ...

Animal welfare campaigners were last night celebrating a victory in their campaign to persuade supermarket chain Tesco to tell its customers which eggs come from chickens that are kept in battery ...

Unscrambling the genetics of the chicken's 'blue' egg Date: August 20, 2013 Source: University of Nottingham Summary: Researchers have unscrambled the genetic mutation that gives the distinctive ...

There are a few breeds of chicken that are known for their tendency to pop out the occasional blue egg — Araucanas in Chile and Dongxiang and Lushi chickens in China.