The Shankbone is symbolic of the Paschal lamb offered as the Passover sacrifice in biblical times. In some communities, it is common to use a chicken neck in place of the shankbone. Vegetarian households often use beets for the shankbone on the seder plate. The red beets symbolize the blood of the Paschal lamb, which was used to mark the lintel and doorposts of the houses during the first Passover (Exodus 12:22).
Most kosher butchers make shankbones available before Passover.
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