WHY ARE THERE PORES IN EGG SHELLS?

[Haltey]

I AM DOING A SCIENCE EXPERIMENT WITH EGGSHELLs AND I NEED TO KNOW WHY THERE ARE PORES IN EGGSHELLS!!!!! I HAVE GOOGLED IT BUT ALL I GOT WAS THERE ARE PORES IN EGG SHELLS TO TRANSPORT "STUFF" BUT I DO NOT KNOW WHAT EXACALLY THEY MEAN BY "STUFF" AIR?MOISTURE?BACTERIA?
I HAVE ALSO HEARD ABOUT BLOOM? A PROTECTIVE COATING ON AN EGG SHELL.......
PLEASE REPLY SOON!!!!!!!!
THANKS!!!!!!!!
TTYL BYE

 

[Ridgerunner]

When the baby chicks are developing in the egg shell, they need to breathe. The pores in the egg shell allows an exchange of good air with the bad air.

A side effect to this. The pores allow moisture to escape from inside of the egg. When the hen lays the egg, it has a little more moisture in it than the chick needs to develop and hatch. If it has too little moisture in there when it hatches it gets stuck. If there is too much moisture it drowns. The pores are not there to carry that moisture away. They are there for the air exchange. But because of the pores, the egg has to start out with excess moisture so it has the right amount at hatch. This is what all our discussion on the right humidity during incubation is all about. Winding up with the right amount of moisture inside the egg at hatch.

 

[Haltey]

thanks for the answer it was very helpful!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!