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Treatment of Ovarian Cysts

An efficient system to treat ovarian follicular cysts in cattle has been developed. In this system, a GnRH agonist is injected to luteinize the cyst and induce recruitment and selection of a new follicle. At the time of GnRH agonist treatment, an intravaginal progesterone device is inserted to reduce the endogenous pulsatility of LH. On day 7 after insertion of the intravaginal progesterone device, an injection of PGF is given to regress any induced CL formed from an active subordinate follicle present at the time of GnRH agonist treatment. The intravaginal progesterone device is removed on day 9 after insertion and cows express estrus on day 11. Associated with the induced estrus is a normal ovulation and subsequent CL development with re-occurring follicular waves throughout the estrous cycle. Thus successful treatment is completed within a 11 day period.

 
 
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A follicular cyst, Current Therapy in Theriogenology 2", 
		  D. A. Morrow.
 
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