Presentation of ultrasound results

Presenting ultrasound (USG) pregnancy results in sows involves identifying and measuring specific structures indicative of pregnancy at different stages of gestation. Here's a guide to interpreting USG results and understanding the stages of pregnancy in pigs:

Early Pregnancy (Days 0-35):

At around 18-24 days post-mating, small fluid-filled structures called conceptuses can be observed using ultrasound.
The presence of multiple spherical structures (embryos) within the uterus confirms pregnancy.
Each embryo typically measures around 2-3 mm in diameter during early pregnancy.

Mid Pregnancy (Days 35-70):

As pregnancy progresses, the embryos develop into recognizable fetuses with distinct features.
By day 35-40, fetal heartbeats can be detected using ultrasound.
The size of the fetuses increases gradually, reaching around 10-15 mm in length by day 50-55.

Late Pregnancy (Days 70 to Parturition):

During late pregnancy, the fetuses continue to grow rapidly, occupying more space within the uterus.
By day 70 onwards, the fetal skeleton becomes ossified, and individual structures such as the spine, skull, and limbs become visible on ultrasound.

The size of the fetuses increases significantly, reaching lengths of 15-20 cm or more by the end of gestation.

When presenting USG pregnancy results in sows, it's essential to include:
Confirmation of pregnancy: Identify the presence of embryos/fetuses within the uterine horns.
Gestational age: Estimate the stage of pregnancy based on fetal size and development.
Fetal viability: Assess fetal heartbeats and movements to ensure normal development.
Any abnormalities or complications: Note any anomalies or issues detected during the ultrasound examination.

Overall, USG provides a valuable tool for monitoring pregnancy progression and ensuring the health and well-being of sows and their offspring in swine production operations.