What is the size of egg to get it fertilized?

The size of an egg does not determine if it can be fertilized. Here's why:

* Fertilization is about the sperm and egg meeting. The size of the egg is irrelevant to whether a sperm cell can reach and penetrate it.

* Egg size varies. Different species of animals lay eggs of different sizes. Even within a species, the size of eggs can vary depending on factors like the hen's age and breed.

* Fertility is about the egg's health. A healthy egg, regardless of size, has the potential to be fertilized. Factors like the age of the egg, storage conditions, and the health of the female producing the egg are more important for fertility.

In summary: It's the health of the egg and the ability of a sperm cell to reach it that determine fertilization, not the egg's size.