When this happens, the thyroid gland is no longer under pituitary control. The amount of hormone it produces is dependent on levels of TSI. TSI are the direct cause of hyperthyroidism in Gravesâ disease and various immune system chemicals known as cytokines also contribute to the symptoms that occur in this disorder.
Confidence votes 20. Female Iguanas will lay eggs when they become sexually mature, which is around 1.5 to 2 years old. They do not need to be fertilized to lay so therefore do not need a male Iguana. They need to be healthy before they lay or else there can be very serious problems.
The incubation time needed for fertile eggs is shorter (14-17 days) compared to Bobwhite quail eggs (23 days). Coturnix may start laying eggs as early as 6 weeks of age compared to 16 weeks for the Bobwhite.HISTORY: Japanese quail have been widely distributed in Europe and Asia.Egyptians used to trap large quantities from their farm lands for meat. In Japan, these birds were kept as pets beginning in the eleventh century.n this area, the feathers of the female quail are longer and more pointed than those of the male birds. The female Japanese may start laying eggs as early as 35 days of age under proper conditions, laying approximately 200-300 eggs a year.