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* The shape of the ovary when the corpus luteum develops will depend on the site of ovulation.
 
* The shape of the ovary when the corpus luteum develops will depend on the site of ovulation.
 
* The point of ovulation is usually an avascular area of the follicular wall.  Therefore, haemorrage is not seen with ovulation in the cow.  However, after ovulation there is congestion around the point of follicular rupture and sometimes there is a small blood clot in the centre of the new corpus luteum.
 
* The point of ovulation is usually an avascular area of the follicular wall.  Therefore, haemorrage is not seen with ovulation in the cow.  However, after ovulation there is congestion around the point of follicular rupture and sometimes there is a small blood clot in the centre of the new corpus luteum.
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* When the follicle ruptures, the ovum is expelled through a small breach in the surface.
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* Most of the antral fluid escapes and the follicle collapses.
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* The ovary feels flattened and soft on palpation.
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* The surface from which ovulation has occurred is wrinkled and may be blood-stained.
    
==== Crpus Luteum of the Oestrous Cycle ====
 
==== Crpus Luteum of the Oestrous Cycle ====
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