title: 17beta-estradiol, progesterone and testosterone concentrations in cystic fluids and response to GnRH treatment after emptying of ovarian cysts in dairy cows.
abstract: The aim of this study was to determine possible links between steroidogenic activity of single ovarian cysts and response to intramuscular treatment with 20 microg of buserelin (GnRH-analogue) after cyst emptying, in pluriparous Friesian cows bearing a singleton cyst treated not earlier than 55 days post-partum. Progesterone, 17beta-estradiol and testosterone were determined in cystic fluids collected by needle aspiration of the cyst. Of the cows, 75.6% began ovarian cyclicity within 30 days after treatment with a conception rate of 64.7%. In this study it was found that as progesterone concentration in cystic fluids rose, the number of positive responses to the treatment fell.
mesh_terms: D000818:Animals; D002064:Buserelin / Q000494:pharmacology / Q000627:therapeutic use*; D002417:Cattle; D002418:Cattle Diseases / Q000378:metabolism* / Q000628:therapy*; D003612:Dairying; D004958:Estradiol / Q000378:metabolism*; D005260:Female; D005300:Fertility Agents, Female / Q000494:pharmacology / Q000627:therapeutic use*; D010048:Ovarian Cysts / Q000378:metabolism / Q000628:therapy / Q000662:veterinary*; D011374:Progesterone / Q000378:metabolism*; D013396:Suction / Q000662:veterinary; D013739:Testosterone / Q000378:metabolism*
chemical_list: D005300:Fertility Agents, Female; D013739:Testosterone; D011374:Progesterone; D004958:Estradiol; D002064:Buserelin