Lipids and lipoproteins in blood serum of calves receiving Yea-Sacc¹⁰²⁶ dietary supplement

Abstract

The concentration of total lipids, lipid fractions and the quantitative and qualitative composition of plasma lipoproteins of calves fed a diet supplemented with the biopreparation Yea-Sacc 1026 were analyzed. Supplementation of the diet with yeast cultures from days 8 to 84 of life had a positive effect on lipid metabolism, especially when the calves received solid feeds. This was reflected not only by higher levels of triglycerides, cholesterol and non-esterified fatty acids (NEFA) in blood serum but also by lipoprotein fractions. The concentrations of very low density lipoproteins (VLDL) and triglycerides (TG) in this fraction were the lowest in calves aged 84 days. Higher values (8 vs 5%; 78 vs 70%, respectively) were, however, observed in group 2. The low density lipoprotein (LDL) concentrations were the highest in all animals on day 84 of life and constituted an average 25% of serum lipids. In experimental group 2, cholesterol represented 47% of LDL lipids and was higher (on average 11%) compared with the control group.

Influence of Live Yeast Culture (Saccharomyces cerevisiae) on Milk Production and Composition, and Blood Biochemistry of Grazing Dairy Ewes during the Milking Period

“…According to Quigley et al (1992), the increased ruminal butyrate was at least partially responsible for increased BHB values. Triglycerides and cholesterol values tended to be higher in the treated groups, which was also noted by Pysera and Opalka (2001). The same authors also found, in contrast to our results, differences in lipoprotein fractions.…”

Influence of Live Yeast Culture on Milk Production, Composition and Some Blood Metabolites of Ossimi Ewes During the Milking Period

“…According to Quigley et al (1992), the increased ruminal butyrate was at least partially responsible for increased BHB values. Triglycerides and cholesterol values tended to be higher in the treated groups, which was also noted by Pysera and Opalka (2001). The same authors also found, in contrast to our results.…”

Performance of crossbred dairy Friesian calves fed two levels ofSaccharomyces cerevisiae: intake, digestion, ruminal fermentation, blood parameters and faecal pathogenic bacteria

“…The decreased total cholesterol and triglyceride concentrations in blood could be caused by some positive changes in rumen fermentation and populations of ruminal bacteria and protozoa with S. cerevisiae supplementation. Pysera & Opałka (2001) explained that the change in rumen VFA, particularly propionate, butyrate and valerate acids, is responsible for the decreased synthesis of cholesterol and triglycerides in the liver cells. Moreover, the cell wall of S. cerevisiae is rich in β-glucans content which, according to Nicolosi et al .…”