Development of a Method of Diagnosing Ovarian Disorders in Sows and Gilts Using Uterine Ultrasonography.

Abstract

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 2α administration. KEY WORDS: ovarian disorder, rectal palpation, swine, ultrasonography.

Transcriptome and Metabolome Analyses Reveal the Mechanism of Corpus Luteum Cyst Formation in Pigs

“…Luteal cysts can affect normal estrus in sows [17]. In this study, many of the top 20 functionally enriched GO terms assigned to the DEGs in luteal cysts were genes involved in immune-related biological processes, including SIGLEC1, PDCD1, ICOS, and MHCII, and to significantly up-regulated genes enriched in cell adhesion molecule signaling pathways.…”