As a prawn differentiate a pre ovate Normal

If you look at the picture taken from above you will see that the shrimp has a white neck, this shrimp is a female and is pre ovate, from here the prawn catch after the male to cover the eggs one by one with tweezers to bring you to your feet, where the eggs will develop to become the mother small shrimps loose by aquarium.

It's a good way to differentiate males from females, and so we know that soon we may preserve seed of our shrimp.