The concentrations of proteins, lipoproteins and lipids in the sera of
goats (Saanen, Alpen and crossbred) under physiological conditions, w
ere investigated in this paper. The results obtained demonstrate that
the concentrations of total proteins and relative contributions of the
protein fractions separated by paper electrophoresis do not differ be
tween Saanen, Alpen and crossbred goats. Goats have concentrations of
total lipoproteins, beta lipoproteins and serum cholestelor significan
tly lower than man, but they are within the normal limits for lipid an
d lipoprotein in domestic animals. Only the phospholipid values were c
omparable with those in man. In agarose gel the serum lipoproteins of
goats were separated into four fractions corresponding to human beta,
pre-beta and two fractions with alpha mobility: alpha and pre-alpha li
poproteins. The major part of lipoproteins in goats was found as alpha
lipoproteins (65-70%). The greater part of the phospholipids (about 7
0%) in the serum and about 45% of the cholesterol were carried in the
high density liproprotein fraction.