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Oestrous Cycle - Anatomy & Physiology (view source)
Revision as of 14:41, 11 September 2008
, 14:41, 11 September 2008→Oestrous Cycle
* Duration of oestrus is 7-10 days regardless of mating.
* Duration of oestrus is 7-10 days regardless of mating.
=== Endocrine Changes During the Oestrous Cycle ===
* Oestrogen concentrations increase dramatically at the time of oestrus and may double over 24 hours.
* Oestrogen concentrations increase dramatically at the time of oestrus and may double over 24 hours.
* The principle oestrogen is Oestradiol 17β.
* The principle oestrogen is Oestradiol 17β.
* The rise in Oestradiol 17β corresponds with behavioural oestrus, there are no external signs of pro-oestrus.
=== Mating and Ovulation ===
=== Mating and Ovulation ===