title: [Transvaginal aspiration as first treatment of ovarian follicular cysts in dairy cattle under field circumstances].
abstract: On dairy farms covered by the ambulatory service of the Department of Farm Animal Health, 55 Holstein-Friesian cows with suspected ovarian follicular cysts on the basis of rectal palpation underwent confirmatory transrectal ultrasonography. An ovarian follicular cyst was confirmed in 28 cows (50.9%) and was treated by single transvaginal-guided needle aspiration. Cows with a corpus luteum or a luteinized cyst were not treated. After aspiration, 82.1% (n=23) of the cows showed oestrus behaviour at 13.3 +/- 6.0 days. Artificial insemination was performed during the first heat after cyst aspiration and resulted in a pregnancy rate of 64.2%. In conclusion, single transvaginal-guided needle aspiration of ovarian follicular cysts is an easy and good method for the treatment of follicular cysts. Moreover, it is a safe and good alternative method for the manual, active rupturing of cysts during rectal palpation.
authors.affiliation: Departement Gezondheidszorg Landbouwhuisdieren, Afdeling Herkauwers, Faculteit der Diergeneeskunde, Universiteit Utrecht. J.J.Lievaart@vet.uu.nl
authors.forename: J J
authors.initials: JJ
authors.lastname: Lievaart
authors.forename: J M
authors.initials: JM
authors.lastname: Parlevliet
authors.forename: S J
authors.initials: SJ
authors.lastname: Dieleman
authors.forename: S
authors.initials: S
authors.lastname: Rientjes
authors.forename: E
authors.initials: E
authors.lastname: Bosman
authors.forename: P L A M
authors.initials: PL
authors.lastname: Vos
mesh_terms: D000818:Animals; D044963:Biopsy, Fine-Needle / Q000295:instrumentation / Q000379:methods / Q000662:veterinary*; D002417:Cattle; D002418:Cattle Diseases / Q000000981:diagnostic imaging / Q000628:therapy*; D004971:Estrus / Q000502:physiology; D005260:Female; D005298:Fertility; D005497:Follicular Cyst / Q000000981:diagnostic imaging / Q000628:therapy / Q000662:veterinary*; D010048:Ovarian Cysts / Q000000981:diagnostic imaging / Q000628:therapy / Q000662:veterinary*; D006080:Ovarian Follicle; D011247:Pregnancy; D018873:Pregnancy Rate; D013997:Time Factors; D016896:Treatment Outcome; D014463:Ultrasonography; D014621:Vagina / Q000000981:diagnostic imaging