A device for feeding animals from {HEAD ~ a feed material} containing {TAIL ~ reservoir}, said device comprising: 
containing
A device for feeding animals from { HEAD ~ a feed material } containing { TAIL ~ reservoir } , said device comprising :
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH