Effect of Various Dietary Lipids on the Blood Plasma Lipids of Dairy Calves

Open Access
Publisher Website
Google Scholar
Abstract
Fifteen newborn calves were divided into 5 comparable groups, were allowed colostrum for 3 days and then were fed whole milk for 2 weeks. During the following 4-week period one group continued to receive whole milk, whereas the other groups were fed reconstituted milks containing butteroil, crude soybean oil, hydrogenated soybean oil, and lard, respectively. Weekly detns. of blood plasma lipids showed the values for total lipids, free and ester cholesterol, and ester fatty acids were highest for groups fed whole milk and crude soybean oil, intermediate for groups fed butteroil and lard and lowest for calves fed hydrogenated soybean oil. Trends in phospholipid values, although more variable, in general corresponded to those for total lipids. Changes in neutral fats and free fatty acids were not so marked. The relative proportions of the plasma lipid fractions observed were not altered markedly by the various dietaries. None of these plasma lipid components appeared to be closely related to dietary suitability of the various lipids.