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