The conformation of the hooves of nine heifers obtained from an abattoir was measured and their coefficient of static friction (p) was determined for movement in forward, backward and sideways directions. The hooves were trimmed by the Dutch method and their conformation and p were measured again. Trimming increased pl, and decreased the length of the digit and the angle between it and the floor. The value of p was considerably greater for movement in a forward or backwards direction than sideways. The relationship between the value of p for sideways movement and hoof conformation was examined by using 52 lower limbs from a variety of cattle breeds. Although p was greater for Belgian blue than other cattle breeds, there were no relationships between p and hoof conformation, including a measure of the roughness of the sole.
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