Changes

=== Cyclicity ===

=== Cyclicity ===

* Induced [[The_Ovary_-_Ovulation_-_Anatomy_%26_Physiology|ovulator]]

* Induced [[The_Ovary_-_Ovulation_- Anatomy & Physiology|ovulator]]

** A few individuals will [[The_Ovary_-_Ovulation_-_Anatomy_%26_Physiology|ovulate]] in absence of mating.

** A few individuals will [[The_Ovary_-_Ovulation_- Anatomy & Physiology|ovulate]] in absence of mating.

* Follicular waves occur, where a [[The_Ovary_-_Follicles_-_Anatomy_%26_Physiology|follicle]] will gradually mature to a point when it could be [[The_Ovary_-_Ovulation_-_Anatomy_%26_Physiology|ovulated]] should mating occur.  It will then regress if no mating takes place.

* Follicular waves occur, where a [[The_Ovary_-_Follicles_- Anatomy & Physiology|follicle]] will gradually mature to a point when it could be [[The_Ovary_-_Ovulation_- Anatomy & Physiology|ovulated]] should mating occur.  It will then regress if no mating takes place.

* Folicular waves generally occur every 10-12 days, but there is variation between individual animals.

* Folicular waves generally occur every 10-12 days, but there is variation between individual animals.

* As [[The_Ovary_-_Follicles_-_Anatomy_%26_Physiology|follicles]] mature, they produce Oestrogen, which is responsible for receptivity behaviour.

* As [[The_Ovary_-_Follicles_- Anatomy & Physiology|follicles]] mature, they produce Oestrogen, which is responsible for receptivity behaviour.

* Once [[The_Ovary_-_Ovulation_-_Anatomy_%26_Physiology|ovulation]] has occured,[[Corpus_Luteum_Formation_-_Anatomy_&_Physiology|luteinization]] occurs with the formation of a [[The_Ovary_-Corpus_Luteum_-_Anatomy_%26_Physiology|corpus luteum]].

* Once [[The_Ovary_-_Ovulation_- Anatomy & Physiology|ovulation]] has occured,[[Corpus_Luteum_Formation_-_Anatomy_&_Physiology|luteinization]] occurs with the formation of a [[The_Ovary_-Corpus_Luteum_- Anatomy & Physiology|corpus luteum]].

* [[The_Ovary_-Corpus_Luteum_-_Anatomy_%26_Physiology|Corpus luteum]] produces progesterone.

* [[The_Ovary_-Corpus_Luteum_- Anatomy & Physiology|Corpus luteum]] produces progesterone.

* Progesterone inhibits further [[The_Ovary_-_Follicles_-_Anatomy_%26_Physiology|follicular development]] and triggers rejection behaviour.

* Progesterone inhibits further [[The_Ovary_-_Follicles_- Anatomy & Physiology|follicular development]] and triggers rejection behaviour.

* If there is no pregnancy, [[The_Ovary_-_Corpus_Luteum_Regression-_Anatomy_%26_Physiology|luteolysis]] occurs and the [[The_Ovary_-Corpus_Luteum_-_Anatomy_%26_Physiology|corpus luteum]] is broken down.  This allows a new [[The_Ovary_-_Follicles_-_Anatomy_%26_Physiology|follicle]] to develop.

* If there is no pregnancy, [[The_Ovary_-_Corpus_Luteum_Regression- Anatomy & Physiology|luteolysis]] occurs and the [[The_Ovary_-Corpus_Luteum_- Anatomy & Physiology|corpus luteum]] is broken down.  This allows a new [[The_Ovary_-_Follicles_- Anatomy & Physiology|follicle]] to develop.

* The overlapping nature of follicular waves and the fact that the female is receptive even if the [[The_Ovary_-_Follicles_-_Anatomy_%26_Physiology|follicle]] is not mature enough to [[The_Ovary_-_Ovulation_-_Anatomy_%26_Physiology|ovulate]] makes it difficult to determine from behaviour when the optimum time for mating is.

* The overlapping nature of follicular waves and the fact that the female is receptive even if the [[The_Ovary_-_Follicles_- Anatomy & Physiology|follicle]] is not mature enough to [[The_Ovary_-_Ovulation_- Anatomy & Physiology|ovulate]] makes it difficult to determine from behaviour when the optimum time for mating is.

=== Ovulation ===

=== Ovulation ===

* Triggered as a result of hormones released by the act of [[Reproductive_Behaviour_-_Copulatory_Behaviour_-_Anatomy_%26_Physiology|copulation]].

* Triggered as a result of hormones released by the act of [[Reproductive_Behaviour_-_Copulatory_Behaviour_- Anatomy & Physiology|copulation]].

* Occurs 24-48 hours after mating.

* Occurs 24-48 hours after mating.

* Will only occur if the [[The_Ovary_-_Follicles_-_Anatomy_%26_Physiology|follicle]] is sufficiently mature, yet not so mature that it has lost the ability to [[The_Ovary_-_Ovulation_-_Anatomy_%26_Physiology|ovulate]].

* Will only occur if the [[The_Ovary_-_Follicles_- Anatomy & Physiology|follicle]] is sufficiently mature, yet not so mature that it has lost the ability to [[The_Ovary_-_Ovulation_- Anatomy & Physiology|ovulate]].

* Sperm ejaculated into the [[Female_Reproductive_Tract_-The_Uterus_-_Anatomy_%26_Physiology|uterine horns]] are protected inside a gelatinous plug until [[Fertilisation%2C_Implantation_and_Early_Embryonic_Development_-Fertilisation-_Anatomy_%26_Physiology|fertilization]].

* Sperm ejaculated into the [[Female_Reproductive_Tract_-The_Uterus_- Anatomy & Physiology|uterine horns]] are protected inside a gelatinous plug until [[Fertilisation%2C_Implantation_and_Early_Embryonic_Development_-Fertilisation- Anatomy & Physiology|fertilization]].

** The plug gradually liquifies.

** The plug gradually liquifies.

[[Category:Reproductive System]]

[[Category:Reproductive System]]