Serena Williams. It's another milestone week for the WTA with Serena Williams hitting 157 consecutive weeks at No.1, passing Martina Navratilova for the second-longest streak at No.1 in WTA history.
Most hens will start laying between 5-7 months of age. They will lay best at 1 to 2 years of age. All pullets (female chicken under 1 year of age) lay small eggs at first and after a while will lay larger eggs. Younger hens will lay 1 egg every 3-4 days. A hen 30 weeks old can lay 2 eggs every 3 days. Some have been known to lay an egg a day.
Factor #1 - Breed. Chicken breeds that are generally considered to be layers tend to lay sooner than those considered meat or dual purpose breeds. The hybrid laying breeds start laying as early as 16 weeks. Heritage laying breeds tend to lay about 4 weeks later (20 weeks) and all other breeds will begin laying between 20-32 weeks of age. I have no hard evidence to prove this, but I suspect that the breeds that lay the most eggs each year are also ones that are likely to lay the soonest.