Sephardic/Mizrahi Jewish Genetic Diseases. 1  Alpha-Thalassemia. 2  Ataxia Telangiectasia. 3  Beta-Thalassemia (B- 4 T) Corticosterone Methyloxidase Type II Deficiency.  Costeff Optic Atrophy (also known as Type III 3-methylglutaconic 1  Aciduria) Cystic Fibrosis.  Familial Mediterranean 1  Fever. Familial Tumoral Calcinosis.
They will lay best at 1 to 2 years of age. All pullets (female chicken under 1 year of age) lay small eggs at first and after a while will lay larger eggs. Younger hens will lay 1 egg every 3-4 days. A hen 30 weeks old can lay 2 eggs every 3 days.
Time the Hens Set It only takes 21 days for fertile eggs, properly incubated by a hen or in an incubator, to hatch. Note that this number begins not when the first egg in the clutch is laid, but when the hen stops laying and begins the setting process.he average chicken lays about one egg every other day, and she, depending on her size, will likely make a clutch of 4-10 eggs. Once she stays on the nest fully for one whole day, you can count that as the first day of incubation, and start the 21 day countdown :).