Fig. 3

Ultrasonogram of the abdominal wall in the area of skin perforation. Ultrasonogram showing the abdominal wall in the area of a skin perforation in cow 2. A 5.0-MHz convex transducer was used, and the muscle layers and abdominal wall cannot be differentiated because of trauma-induced changes. Gas inclusions and fluid also are apparent. 1 abdominal wall, 2 gas inclusions, 3 fluid, 4 rumen wall, Ds dorsal, Vt ventral