To date, studies of culture methods for bird embryos include the whole embryo culture using narrow windowed eggshells, surrogate eggshells, and an artificial vessel using a gas-permeable membrane. However, there are no reports achieving high hatchability of ＞50% using completely artificial vessels.

Is it possible for a chicken to lay an egg without a shell?

But actually, an egg without a shell is often intact. ... You might even think it's a regular egg until you touch it! Chickens need a lot of calcium to create good, hard shells, so most incidences of shell-less eggs in an adult hens are related to not having enough calcium in the diet.

Can a washed egg still hatch?

Results from this study indicate that properly washed clean or dirty eggs hatch as well as unwashed eggs.