Upon the infusion of CLA, {TAIL ~ a portion} of the CLA is transferred to the mammary gland and incorporated into {HEAD ~ milk fat} 
Upon the infusion of CLA , { TAIL ~ a portion } of the CLA is transferred to the mammary gland and incorporated into { HEAD ~ milk fat }
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD