Why don't laid eggs get spoiled by bacteria as the chick develops inside?

Question

Food egg: if you take an egg from your fridge and leave it on the kitchen counter, it will eventually spoil as bacteria will multiply.

Chicken reproduction egg: why doesn't the egg spoil as the chick develops inside? I'm thinking it has to due with incubation from the mother hen, but aren't much higher temperatures required to kill the bacteria? Is there some sort of immune system built into the yolk and egg whites?

Answer 1

It does have to do with the incubation in a sense. The eggs in the fridge have already been exposed to different temperatures. Also,eggs from the store are not fertilized,so there is no chance of these eggs turning into a baby chick.

If an egg is fertilized by the rooster,say on a farm. The hen called a setter will sit on those eggs and other eggs she and possibly other hens have laid. She keeps these eggs at a constant temperature. Now,the fertilized eggs will incubate and hatch into baby chicks. However,the eggs that are not fertilized will become rotten. The reason for this is because there was no baby chick that could be formed from the unfertilized egg.

The person who said eggs sit for a year before we see them in the store,is incorrect.

Hope this helps.

Answer 2

Her egg, because the chick inside the egg may be male but the chicken who laid the egg was female.

Answer 3

I duno.. what came first anyhow the chicken or the egg?

Because the egg is fertilized and can't rot. And unfertilized eggs can take years to spoil. Did you know that eggs sit at least ONE year befoer you see them in the store? YUCK.. Buy organic/fresh eggs

Answer 4

Anything exposed to air will be spoil ed.For the egg the shell protect it from this.
if the egg shell cracked and left it their will bacteria in it.

Answer 5

They do spoil. It takes some time to spoil and usually the chick will have hatched by then so to speak.

Answer 6

the allantois of an egg has antibodies to protect the development