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Oestrous Cycle Pharmacological Manipulation - Anatomy & Physiology (view source)
Revision as of 09:07, 12 September 2008
, 09:07, 12 September 2008→Preparations which Supplement or Replace Pituitary Gonadotrophins
=== Preparations which Supplement or Replace Pituitary Gonadotrophins ===
=== Preparations which Supplement or Replace Pituitary Gonadotrophins ===
* Purified LH and FSH can be extracted from the pituitary gland in the abbatoir, but this is too time consuming to be practiced commercially. There is also the risk of transmitting diseases such as BSE.
* Instead, two substitutes are used commercially:
** Equine Chorionic Gonadotrophin (eCG): obtained from the serum of pregnant mares. This has an 'FSH-like' effect, but with some 'LH-like' activity.
** Human Chorionic Gonadotrophin (hCG): obtained from the urine of pregnant women. It has mainly an 'LH-like' effect, but with some 'FSH-like' activity.
=== Oestrogens ===
=== Oestrogens ===