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.
Female chickens (hens) generally start laying eggs at around 20-24 weeks of age. Some breeds take longer. They don't need a rooster to lay eggs and if you are lucky they will â¦ lay an egg per day. This will vary depending on the breed of the hen. You can expect the first eggs sometime around week 20 (5 months) Some hens take a few weeks longer to produce. Give t â¦ hem a boost by feeding a Laying pellet type feed that is a bit higher in protein and minerals needed to form good solid eggs.