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.
Iguanas are reptiles and nearly all reptiles lay eggs. There are some reptiles that do not lay eggs, but they are very rare. Female iguanas usually lay a clutch of eggs every year once they're mature. If there is no male iguana, she will still lay eggs, but they won't be fertile.
Early spring is the perfect breeding period of peafowl. Laying Eggs. After breeding in early spring, peahens start laying eggs. Usually peahens start laying eggs daily for about 6 to 10 days and then sit on the eggs to hatch.If you want more egg production, remove the eggs from their nest regularly. Doing this can continue egg laying for about a month.he answer is NO. Peahens are not as prolific as your backyard laying hens. But they lay eggs daily for a short periods of time, not throughout the year round. They lay a certain number of eggs each year for the purpose of producing chicks.