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.
Best Answer: How long does it take for a hen to lay an egg? The average laying hen lays 257 eggs a year. The actual time it takes for a hen to make an egg and lay it is 24 to 26 hours.http://www.aeb.org/kidsandfamily/time_to... How Many Eggs Can a Chicken Lay in One Day? When a hen reaches eighteen to twenty weeks of age, she begins to lay eggs.est Answer: How long does it take for a hen to lay an egg? The average laying hen lays 257 eggs a year. The actual time it takes for a hen to make an egg and lay it is 24 to 26 hours.