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.
Relevance. Rating Newest Oldest. Best Answer: The eggs take roughly 19-21 days to hatch after being laid, and a female will lay an egg every 24-48 hours. Please be aware that same sex birds will perform copulatory behaviour and that not all mating leads to the laying of fertile eggs.