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.
Hens lay approximately 5 eggs per 7 day week. Sperm from a rooster is stored in the hen's oviduct for up to 10 days, so after just a single successful mating many fertilized e â¦ ggs can be laid. Depending on when the hen's last egg was laid, the next egg laid after the hen was mated will most likely be fertile. chicken may take from about 5 minutes to an hour to lay her egg.  She will lay an egg a day at approximately the same time. It takes  about 20 hours for an egg to be made â¦ inside her body. That's why  she is limited to one egg per day. It takes 20 hours to make an egg.