The interaction of wheat germ agglutinin with sialoglycoproteins. The role of sialic acid.

A method is disclosed mounting a resilient poultry feather plucking finger to a rigid finger support with a peripheral groove in the head portion of the finger seated snugly within an aperture of the finger support and with an elongation portion of the finger projecting outwardly from the aperture. The method comprises the steps of passing at least part of the elongation portion of the finger through the finger support aperture and into a pair of elongated pincers, and moving the elongated pincers away from the rigid finger support towards one another thereby urging the finger head portion into the finger support aperture.