1. How many eggs to choose from for this incubation? 10 2. How many eggs set based on "female profile"? 0 3. How many eggs survived to day 18? 9 4. How many chicks hatched? 7, 2 chicks had to be culled in the first week. 5. Percentage of pullets in this hatch? 60%; 3 girls, 2 boys. 6. Hatch date? 2/13 These eggs were all laid by the same hen. She lays the same shape egg everyday. So there was no way to select for shape. The total pullet percentage of my Valentine's Day hatch came to about 66.6%; with only a third of the chicks being cockerels.