title: Development of a method of diagnosing ovarian disorders in sows and gilts using uterine ultrasonography.
abstract: In ultrasonographic diagnosis of ovarian disorders and the estrous cycle in sows, transverse observation of the uterus yielded more characteristic findings than observation of sagittal sections. Transverse ultrasonography revealed that the low progesterone (P) type uterus showed a round structure, while the high P type uterus showed a flattened structure. These results corresponded well with rectal palpation findings: the low P type uterus had a hard, pipe-like structure and the high P type a soft, balloon-like structure. For gilts, we employed a minimum convex type transrectal prostate probe that had an approximately 18 cm insertion handle. The images of the uterus obtained thereby were a similar to those obtained from sows. The above results suggest that it should be possible to diagnose and treat many ovarian disorders in sows and gilts based only on the ultrasonograhic findings. In short, ultrasonograhic findings of a round structure of the uterine wall might be an indication for PMSG (pregnant mare serum gonadotropin) treatment, while findings of a flattened structure might be an indication for PGF(2) (alpha) administration.
authors.affiliation: Department of Theriogenology, College of Bioresource Sciences, Nihon University, Kanagawa, Japan.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Toriumi
authors.forename: Shigehisa
authors.initials: S
authors.lastname: Tsumagari
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Kuwahara
authors.forename: Yasuaki
authors.initials: Y
authors.lastname: Ichikawa
authors.forename: Masatoshi
authors.initials: M
authors.lastname: Takeishi
authors.forename: Takeo
authors.initials: T
authors.lastname: Sakai
mesh_terms: D000818:Animals; D030762:Estrous Cycle; D004972:Estrus Detection / Q000295:instrumentation; D005260:Female; D010049:Ovarian Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000662:veterinary*; D013552:Swine; D013553:Swine Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging*; D014463:Ultrasonography; D014599:Uterus / Q000000981:diagnostic imaging*