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.
Araucanas, whilst hardy birds, generally go off the lay in the late autumn / winter (November to March??). You might get an egg a week or less. They lay more frequently (4-5 per week) in the spring/summer. They are lovely birds with unusual green or blue-shelled eggs and definitely worth keeping.Source(s): I keep hens.o you could safely say that after the start laying, you would get between 300-365 eggs in a year, but don't expect 365, cause they might need a break, or any of the above conditions.