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.
Well a good young chicken can almost lay 5-7 eggs a week so 60-90 in 3 months. It depends on what breed of chicken. Chickens do not need a rooster to lay eggs but a rooster is needed for fertilization to turn that egg into a chick. $$ This depends on: the time of year; the breed of the hen; the diet of the hen; the age of the hen; and, how the hen is looked after. Most of the standard breeds of chickens that have been selected through the years for egg production will lay between 180 â 320 eggs per year for their first year of laying.