Ultrasonographic evaluation of the width, thickness, and length of the normal linea alba in standing and dorsal recumbent horses.

Objective: To determine the variability in length, width, and thickness of the equine linea alba (LA) and the effect of a standing vs dorsal recumbent position on these measurements.

Study Design: Descriptive anatomical comparative study.

Animals: Standing horses (N = 75; in 30 horses, measurements were obtained in dorsal recumbency first and repeated after horses were standing).