Park Y, Pariza M W
Food Research Institute, University of Wisconsin-Madison, 53706, USA.
Lipids. 1998 Aug;33(8):817-9. doi: 10.1007/s11745-998-0275-x.
We analyzed fetal calf, newborn calf, horse, and adult cow sera for conjugated linoleic acid (CLA). All sera samples contained CLA, but the amounts varied. The predominant isomer was cis-9,trans-11 CLA but some samples appeared to contain substantial amounts of an isomer with the retention time of trans-10,cis-12 CLA.