Folic acid and vitamin B12 determination in fetal liver

The folate and vitamin B12 content of 61 fetal livers divided into 3 groups immature (13 cases); premature (27 cases); at terminus (21 cases) were determined microbiologically. The average concentration (mug/g) and the reserve (mug) of hepatic folate for the immature group were 2 and 43.2 (net weight); for the premature group were 3.05 and 163.6; for the third group were 2.54 and 225.3, respectively. The average concentration (mug/g) and the reserve (mug) of hepatic vitamin B12 for the immature group were 0.173 and 4.1; for the premature group were 0.207 and 10.7; for the third group were 0.300 and 27.3 respectively.