Ultrasound rump fat
Rump fat thickness is a fat depot that is highly related to 12th-13th rib backfat thickness. To collect this image, the ultrasound transducer should be placed directly between the hooks and pins without a standoff guide. Ultrasound technicians and image processing labs should be certified or accredited by the Ultrasound Guidelines Council (UGC). The UGC standards for certification can be found at https://ultrasoundguidelinescouncil.org/wp-content/uploads/2021/09/UGC-SG-VII-FC.pdf.
This trait is not currently used in genetic evaluations.