Why do hens lay an egg a day?

Hens don't lay an egg *every* day. It's more accurate to say that a hen can lay an egg about every 24-26 hours.

Here's why:

* Hormonal cycle: A hen's egg-laying cycle is driven by hormones. The hormone estrogen triggers the development of a yolk, which is the basis of the egg.

* Ovulation: The yolk is released from the ovary (ovulation) and travels down the oviduct.

* Egg formation: As the yolk travels through the oviduct, the egg white, shell membranes, and finally the shell are added. This process takes about 24-26 hours.

* Laying: The completed egg is then laid.

Factors affecting frequency:

* Breed: Some breeds of hens lay more frequently than others.

* Age: Young hens lay more frequently than older hens.

* Light: Hens need a certain amount of light each day to stimulate egg production.

* Diet: A healthy diet is essential for egg production.

* Stress: Stress can reduce egg production.

Important note: It's not uncommon for a hen to skip a day or two in her egg-laying cycle. This is normal and shouldn't be a cause for concern.