The synchronisation of gilts every week
Control of the oestrous cycle in the pig can be achieved through the predictable suppression of the follicular phase using a progestogen.
A progestogen is a compound that mimics the biological effects of the natural steroid, progesterone. Following the phasic release of luteinising hormone (LH) near the onset of oestrus, mature ovarian follicles release their ova (ovulate) and the cells of the follicle remnants luteinise to become the corpora lutea, which are the structures producing progesterone.
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