In Antigua, Barbados, Barbuda, the Cayman Islands, Dominica, the Dominican Republic, Grenada, Guadeloupe, Haiti, Jamaica, Puerto Rico, Saint Lucia, and Saint Vincent. During the months of January, February, March, April, May, July, December. Also noted during this two-part list are birds in the Bahamas and Cuba.
Prolactin is secreted from the pituitary gland in response to eating, mating, estrogen treatment, ovulation, and nursing. Prolactin is secreted in a pulsatile fashion in between these events.Prolactin also plays an essential role in metabolism, regulation of the immune system, and pancreatic development.rolactin provides the body with sexual gratification after sexual acts: The hormone counteracts the effect of dopamine, which is responsible for sexual arousal. This is thought to cause the sexual refractory period. The amount of prolactin can be an indicator for the amount of sexual satisfaction and relaxation.
Causes of high prolactin levels (known as hyperprolactinemia) include such things as pregnancy, breastfeeding, and a prolactinoma or other type of pituitary tumor. There are a number of possible causes of high prolactin levels (also known as hyperprolactinemia). Some common causes of high prolactin levels include: 1  Pregnancy and breastfeeding. 2  Prolactinoma. 3  Certain medicines (such as trifluoperazine and haloperidol) 4  Other pituitary tumors.  Hypothyroidism.