The primary object of this invention is to provide {HEAD ~ an assay vehicle} for convenient evaluation of characteristics of animal excreta, without {TAIL ~ unnecessary manipulation} of or trauma to the subject animal 
without
The primary object of this invention is to provide { HEAD ~ an assay vehicle } for convenient evaluation of characteristics of animal excreta , without { TAIL ~ unnecessary manipulation } of or trauma to the subject animal
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH