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Avian Breeding, Ovulation and Oviposition - Anatomy & Physiology (view source)
Revision as of 12:42, 4 July 2008
, 12:42, 4 July 2008→Endocrine Control
== Endocrine Control ==
== Endocrine Control ==
* In females, FSH is mainly responsible for follicular growth.
* In females, '''FSH''' is mainly responsible for follicular growth.
* Developing follicles produce Oestrogen from Theca and interstitial cells and Progesterone from Granulosa cells.
* Developing follicles produce '''Oestrogen''' from '''Theca and interstitial cells''' and '''Progesterone''' from '''Granulosa cells'''.
* Increasing levels of Oestrogen stimulate an LH surge to cause the follicle to split and release the primary oocyte.
* Increasing levels of Oestrogen stimulate an '''LH surge''' to cause the follicle to split and release the primary oocyte.
* Oestrogen mobilizes calcium from the bone, increasing plasma concentrations for egg formation.
* '''Oestrogen mobilizes calcium''' from the bone, increasing plasma concentrations for egg formation.
* Progesterone secretion continues to inhibit further ovulation and stimulate behavioural changes associated with broodiness and incubation.
* '''Progesterone''' secretion continues to inhibit further ovulation and stimulate behavioural changes associated with '''broodiness and incubation'''.
* Prolactin stimulates the production of crop milk in male and female columbiformes.
* '''Prolactin''' stimulates the production of '''crop milk''' in male and female columbiformes.
* Oviposition is controlled by prostaglandins and Arginine Vasotocin.
* '''Oviposition''' is controlled by '''prostaglandins and Arginine Vasotocin'''.
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