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Pregnancy and Parturition - Horse Anatomy (view source)
Revision as of 17:44, 26 November 2012
, 17:44, 26 November 2012→Parturition
==Parturition==
==Parturition==
===Stages of Parturition=
*Stage 1: This is the preparatory stage, starting at the onset of regular uterine contractions followed by cervical dilatation and the foetus assuming the correct disposition for passage through the birth canal. This takes 1-4 hours.
*Stage 2: The expulsive stage, characterised by the onset of abdominal contractions which together with uterine contractions lead to foetal expulsion. This takes 12-30 minutes.
*Stage 3: Separation and expulsion of the foetal membranes. This takes 1 hour.