TY - JOUR AU - Knox, RV AU - Althouse, GC TI - Visualizing the reproductive tract of the female pig usingreal-time ultrasonography T2 - Journal of Swine Health and Production JF - Journal of Swine Health and Production J2 - JSHAP SN - 1537-209X DP - American Association of Swine Veterinarians PB - American Association of Swine Veterinarians DA - 1999/Sep// PY - 1999 VL - 7 M1 - 5 IS - 5 M2 - 207 SP - 207-215 L2 - https://www.aasv.org/shap/issues/v7n5/v7n5p207.html UR - https://www.aasv.org/shap/abstracts/abstract.php?v7n5p207 L1 - https://www.aasv.org/shap/issues/v7n5/v7n5p207.pdf KW - swine KW - real-time KW - ultrasound KW - ovaries KW - uterus KW - pregnancy N2 - The availability of inexpensive, lightweight, portable ultrasoundmachines will greatly facilitate the use of reproductive imagingin the female pig and may prove useful in making management decisionsbased on an accurate diagnosis of the reproductive status of thesow or gilt at any point in time. Real-time ultrasonography (RTU)using 3.5 and 5.0 MHz transducers transabdominally or 5.0 and7.5 MHz transducers transrectally can allow the practitioner todetermine the pregnancy and estrous status of breeding femalesin commercial herds. In our experience, less structural detailwas visually revealed with transabdominal RTU when assessing theovary or uterus during the estrous cycle or early pregnancy. Incontrast, transrectal ultrasound allowed faster and more detailedmeans of assessing fine reproductive structures of varying echogenicity(follicles, corpora hemorrhagica [CH], and corpora lutea [CL])and the conceptus components of early pregnancy (day 16-20). Inthis article, transrectal and transabdominal procedures are describedin detail, and image specificity, quality, and ease of imagingof the female reproductive tract is considered. Reference sonogramsare provided. ER -