Abstract: A milking parlor, milking module, and a closing unit comprising at least two closing members to optionally release or close a corresponding number of openings in a milking parlor floor which serves as a standing area. The closing members are disposed to be rotatable about a rotational axis at least between a closed position and an open position, wherein the open position allows at least one animal-related treatment means to be guided through said opening. Said rotational axis is disposed in a central region between the closing members.