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Oestrous Cycle - Anatomy & Physiology (view source)
Revision as of 12:30, 11 December 2009
, 12:30, 11 December 2009→Cyclic Changes in the Ovaries
* As the corpus luteum regresses between days 15-18, the colour rapidly changes to yellow, creamy yellow or buff.
* As the corpus luteum regresses between days 15-18, the colour rapidly changes to yellow, creamy yellow or buff.
* The mechanism of luteolysis is not fully understood in the sow.
* The mechanism of luteolysis is not fully understood in the sow.
** Corpora lutea are unresponsive to PGF2α until 12-23 days after obulation.
** Corpora lutea are unresponsive to PGF2α until 12-23 days after ovulation.
** During luteolysis, corpora lutea are invaded by macrophages.
** During luteolysis, corpora lutea are invaded by macrophages.
** Macrophages produce Tumour Necrosis Factor (TNF).
** Macrophages produce Tumour Necrosis Factor (TNF).