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To provide us with eggs. You see, they are domesticated. For thousands of years they have been bred to do just what they do today. Over time, chickens that tended to lay more eggs for longer periods were kept and bred over thousands of generations. Presto--breeds like Leghorns and Rhode Island Reds that lay more eggs than most other breeds. Other breeds of chickens over time were bred not for how many eggs they could lay but for meatier thighs and breasts (broiler chickens) and some breeds for both qualities so you could have your eggs and still get good meat when they stopped laying because of age. When you say "most other birds lay fertilized eggs" this is only true if there is a male of the breed around. As long as there is a fertile rooster doing his job with access to the hens, every egg the hens lay will be fertilized. In other species of birds that perhaps only lay a couple eggs each spring, it may be that something the male does triggers that egg laying.
every bird lays eggs....
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoA hen will lay eggs, regardless of whether or not they are fertilized. They are laid in exactly the same way a fertile egg is. The act of mating or fertilization has no effect on the hens laying cycle.
Eggs are infertile if the hen has never been mated, or has not been mated with in the past 2 weeks.
Wiki User
∙ 12y agoso we can eat em!
Because they were not fertilized by a male.
Wiki User
∙ 13y agoBecause chickens are the best type of bird to lay eggs, that's why there so common on farms.
Wiki User
∙ 13y agoMost breeds of chickens lay eggs every day. They lay those eggs whether or not they are fertilized. If the flock of chickens has a rooster then chances are the eggs the hens lay are fertile.
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Do hen lays unfertilized eggs?
Most chicken eggs produced for consumption are unfertilized. Eggs found in the grocery stores are typically produced by chickens that never come in contact with a rooster.In backyard flocks, however, there is usually a rooster present with the hens and he ensures that the eggs are fertilized by mating the hens regularly. Eggs from hens who have been mated in the past week are fertilized chicken eggs. They can be eaten or incubated and hatched into chicks.Yes, hens can and do lay unfertilized eggs. In fact, most grocery store eggs come from hens that have not been mated by a rooster and therefore are unfertilized.Yes, a hen that has not mated with a rooster in the past ten days will lay only unfertilized eggs. A hen that has never been with a rooster will only lay unfertilized eggs.A rooster must mate a hen for her to lay eggs, and after she is first mated it will still take about a week for her eggs to be fertilized, as it takes about that long for the rooster's sperm to travel to the hen's ovaries where her eggs are fertilized before the shell covers them and before they are laid.
What type of breded hens lay eggs?
All hens lay eggs.
Do boy hens lay eggs am trying to say do boy hens lay eggs all year?
Hens are mom chickens and roosters are dad chickens. Only mom chickens, hens, lay eggs. They lay eggs all year.
Do boy hens lay eggs do boy hens lay eggs?
There is no such thing as a "boy hen". Hens are female chickens.
Do penguins lay unfertilized eggs?
Like most birds it is possible for penguins to lay unfertilized eggs but it doesn't happen very often.
Can hens lay fertilized eggs before they have ever laid an unfertilized eggs?
I think it would be very unusual and rare, because a hen's first egg is usually deformed and small.
Does a hen lay eggs?
Hens lay eggs, the ones you eat.
Do hens have to mate to lay eggs?
No. You do not need a Rooster ( no such thing as a male chicken) to get a chicken to lay eggs. Eggs are produced based on daylight paterns. The rooseter is only needed if you want to fertilize the eggs.
Do hens over one year old lay eggs?
Yes, hens can lay eggs for 2-3 years.
Why do white hens lay white eggs and brown hens lay brown eggs and black hens don't lay black eggs?
Feather coloring does not influence the color of the egg laid. The breed of the hen dictates what color her eggs will be.
Is there a difference between the nutritional value of fertilized and unfertilized eggs?
Hens will lay eggs regularly without the necessity for fertilization. The only difference between a fertilized and unfertilized egg is that a fertilized egg has the potential to hatch and become a chick, while the other does not. Several prominent institutions have conducted studies comparing the nutritional values of fertilized eggs to unfertilized eggs. The result was that both kinds of eggs are nutritionally the same.
Do peahens lay unfertilized eggs?
yes if there is no male peacock to breed them they will still lay eggs and set on them
