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Oestrous Cycle Pharmacological Manipulation - Anatomy & Physiology (view source)
Revision as of 13:07, 12 September 2008
, 13:07, 12 September 2008→Control in the Breeding Period
* Feed for 15 days, then stop.
* Feed for 15 days, then stop.
* Mare should come into oestrus 2-3 days later.
* Mare should come into oestrus 2-3 days later.
===== Pharmacological: Prostaglandins =====
* Eliminates the need for frequent testing for oestrus. It is also useful if a heat is missed, particularly the 'foal heat'.
* PGF2α and the synthetic analogue clonprostenol are used.
* Onset of oestrus is well synchronized 3 days after treatment.
* Subsequent ovulation occurs 7-12 days after treatment.
* Injecting hCG or GnRH on day 2-3 of the induced oestrus achieves the best results.
=== Inducing Ovulation ===
=== Inducing Ovulation ===