Table 5. Correlation between pork backfat thickness, belly fat content, and total fat percentage measured by the VCS2000 and auction price in gilts and barrows

Items	Gilt1)	Barrow
First thoracic vertebra backfat thickness	0.596**	0.535**
Backfat thickness used for grading2)	0.703**	0.607**
Multi-branched muscle middle backfat thickness	0.537**	0.476**
Pork belly fat percentage	0.556**	0.519**
Total fat yield	0.680**	0.618**

Gilts, 17,602 pigs; barrows, 16,579 pigs.
Average of two backfat thickness (the backfat thickness between the last rib and the first lumbar vertebra, and the backfat thickness between the 11th and 12th ribs).
p < 0.01.