The age of the chicken also influences their egg production on a daily and monthly basis. As the chicken grows older it begins laying fewer eggs and the five per week will become only three eggs per week. There is no chicken that lays eight eggs per day. In some other cases, some chickens lay two eggs a day, but that rarely happens. There are some of the reasons that doesnât affect on why the chicken lay only one egg per day from the time they started laying eggs. The reasons stated is what usually happens on every chicken. The aging chickens can live for many years(up to 12 years maximum but will not produce an egg anymore if they reached that age) and continue to lay eggs when they are still young and of course healthy.