Ultrasonogram of liver of a five-year-old sheep viewed from 9th intercostal space with a 5-MHz convex transducer showing greyish echogenicity of parenchyma in a healthy liver and non-compressed portal vein (compare with Figs 2). CVC, Caudal vena cava; Ds, Dorsal; GB, Gall bladder; PV, Portal vein; Vt, Ventral.