Photoelectric and inductive sensors are placed along a picking and eviscerating chicken lines. The invention is characterized in that the silicone materials are produced from addition-crosslinked silicones, and the surface of the silicone materials has a contact angle to the water of at least 100\xb0. The nugget includes one face that defines a longitudinal concavity, indentation, or channel, which is oriented generally parallel to the longitudinal axis of the wire cable.