From Wikipedia, the free encyclopedia. Mamma mia [Ëmamma ËmiËa] (an Italian interjection, literally my mother) may refer to:  1 Mamma Mia (song), a 1975 ABBA song.  Mamma Mia!, a musical based on ABBA songs, which premiered in London in 1999.
The productive life of a layer hen is about 2 years. Hen usually start laying at about 5 to 7 months old and reach peak egg production at 11 months old. The number of eggs laid will drop at about 18 to 24 months old but some birds will continue to lay up to a year after that. Egg production will also drop when the hen molts or if nutritional needs are not met.
Original Answer: The chicken egg laying cycle lasts for exactly 21 days when the eggs will start to get cracking into chicks. Next Answer: The 21 days referred to in the prev â¦ ious answer is how long it takes a fertile chicken egg to hatch if it is incubated (either by a hen or an incubator).he actual formation of the egg inside the chicken takes about 24 hours, but when they sit down to lay the egg it can take anywhere from 15 minutes to a couple of hours.