Table 1. Mean (SD) ultrasound depths at the sites; T18 and L3 of the left (L) and right (R) longissimus muscles, the middle gluteal muscle and the tail head (fat).

	T18		L3		Gluteal		Tail head
	L	R	L	R	L	R	L	R
Depth (cm)	7.59 ± 1.13	7.90 ± 1.20	9.37 ± 1.53	9.63 ± 1.27	9.57 ± 1.33	9.67 ± 1.26	1.70 ± 0.56	1.79 ± 0.60
CV (%)	3.35 ± 2.10	3.24 ± 1.98	1.75 ± 1.02	1.87 ± 1.0	1.73 ± 1.01	2.18 ± 1.47	3.45 ± 2.29	2.83 ± 1.89

The coefficient of variation (CV) expressed as a percent was calculated as the SD for 3 measurements at each site divided by the mean depth.