The invention is directed to pneumatic tires for heavy vehicle service that include a carcass, a tread disposed radially outward of the carcass, a sidewall intersecting the tread at a shoulder, and a belt reinforcing structure positioned radially between the carcass and the tread. Provided is an organometallic complex having a structure represented by the following General Formula. Various example features are described for adjusting the size of the cutting port. A biasing spring member acts on the light-shuttering member to balance the fluid thrust. A grabber assembly is described, to grasp the legs of the poultry and guide the poultry into a bag in proper hocking position. The receiving system sends the voice message to the user device and executes the application during a portion of the hold time.