The assemblies of the invention are suitable for mounting to, or being an integral part of, an animal enclosure such that the height of a valve-controlled liquid outlet may be adjusted according to the changing needs of growing animals. Furthermore, the present invention relates to an apparatus which is suited for carrying out the method and comprises at least one teat cup which communicates with a milk line conducting milked milk and in the interior of which a supply line ends via which cleaning medium which has been discharged from a source can be introduced into the teat cup. The units are arrayed in a direction in which the pixel columns are arrayed, and generate signals based on charges from the imaging region. In another aspect, data may be transmitted using FH sequences generated based on the expression y=log\u03b1 bk. The method also includes a step for scrolling, in response to the received scroll event, content in the notification, wherein the scrolling provides additional content viewable to the user. A plurality of leads are disposed proximal the second side of the die attach pad.