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Oestrous Cycle Pharmacological Manipulation - Anatomy & Physiology (view source)
Revision as of 09:55, 12 September 2008
, 09:55, 12 September 2008→Progesterone Releasing Intravaginal Device (PRID)
* When removed after 12 days, the cow will come into oestrus in 2-3 days.
* When removed after 12 days, the cow will come into oestrus in 2-3 days.
* Some may also contain Oestradiol Benzoate.
* Some may also contain Oestradiol Benzoate.
* Oestradiol Benzoate is anti-luteotrophic and mildly luteolytic.
* Almost 100% synchronization can be achieved if an injection of PGF2α is administered 24 hours before removing the device. This has a far greater luteolytic effect than Oestradiol Benzoate alone.
* Can be used in cyclic cows to synchronize oestrus, best inserted on day 13-14.
* Can be used in anoestrus dairy and beef cows to induce oestrus.
==== Controlled Internal Drug Release Device (CIDR) ====
==== Controlled Internal Drug Release Device (CIDR) ====