There is no way to force a hen to lay. You can bump up their nutrition by feeding more layer feed. You can add a tonic to their water to increase vitamin intake. But if they are just starting to become old enought to lay, have patience is all you can really do.
About 20 weeks till they start laying, but my hens started at 16 weeks.
The hen who is laying will have an inflamed comb. When they stop laying or aren't laying yet, their combs become a pinkish-pale color.
You know when a hen is ready to start laying eggs when her comb drops, and her face feathers are full and have lost the "pinkish" color.
The egg came before the hen; because dinosaurs had been laying eggs before hens(chickens) had even evolved.
generally, for the first few times, the egg will be laid in random places, then as they get into a routine, the hen will lay in the nesting box
The largest hens that can lay are the Jersy Giant and the Wyandotte. Look them up!
It depends on how old the hen is.
I assume the question is about hens and eggs? In which case, calcium is needed in a laying ration to help the hen lay eggs with a strong shell.
Warren hens are known for laying large brown eggs. These hens lay an average of 4 eggs each week. After a full two years of laying the amount of eggs that the hen produces will be reduced.
Most hens begin laying eggs at about 16 to 20 weeks old. This depends on the breed and nutritional health of the hen. The hens first egg (s) are often small and can even be yolkless.
A large chicken is called a standard, whereas a small chicken is a bantam.
Well yes. Sometimes the roosters sit on the nest to encourage the hen to go broody. But roosters don't lay!