Comparison of the lipoprotein pattern of the horse, the pony and the lactating and non-lactating cow obtained by a combination of an ultracentrifugation and a precipitation technique.
1. The serum lipoprotein pattern was studied in four horses, four ponies and in three high producing lactating and three non-lactating cows. The lipoprotein pattern was estimated with a combination of the preparative ultracentrifugation and the heparin-manganese precipitation technique. 2. The lipid composition of the lipoproteins of horse, pony, lactating cow and non-lactating cow was determined. 3. In all three species more than 50% of serum total lipids was found in the HDL fraction. 4. The mean chylomicron fraction in horse and pony was 3.1%. In the cow it varied from 1.5 to 2.5%. 5. Between the lactating cow and the non-lactating cow there were substantial differences in the concentration of LDL and HDL. 6. The cholesterylester concentration in VLDL, LDL and HDL was clearly higher in the lactating cow than in the non-lactating cow.
van Dijk
S
S
Department of Large Animal Medicine and Nutrition, Veterinary Faculty, State University of Utrecht, The Netherlands.
Wensing
T
T
D000818:Animals; D002417:Cattle / Q000097:blood*; D011232:Chemical Precipitation; D005260:Female; D006736:Horses / Q000097:blood*; D007774:Lactation / Q000097:blood*; D008074:Lipoproteins / Q000097:blood* / Q000302:isolation & purification; D008075:Lipoproteins, HDL / Q000097:blood; D008077:Lipoproteins, LDL / Q000097:blood; D008079:Lipoproteins, VLDL / Q000097:blood; D011247:Pregnancy; D013045:Species Specificity; D014461:Ultracentrifugation
D008074:Lipoproteins; D008075:Lipoproteins, HDL; D008077:Lipoproteins, LDL; D008079:Lipoproteins, VLDL