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.
Once the male and female quail start to mate then you will get fertile eggs. An indication that male quail are fertile is the foamball they have on their droppings. Eggs are usually fertile from about week 7/8 a week or two after the females start laying as long as they have had males in with them. It is a good idea to give the femal and males a week together after the hens have started to lay before you take the eggs for incubation. I am sorry to hear that your camera is broken.