The effect of Saccharomyces cerevisiae 1026 used alone or with vitamin-mineral premix on biochemical parameters of blood and milk in dairy cows
Iwanska,S. | Strusinska,D. | Zalewski,W.
When evaluating the effects of yeast culture (S.cerevisiae 1026) supplied with or without a vitamin premix and mineral bioplexes on some intermediates and end-products involved in the synthesis of milk constituents in 30 early-lactation Black and White Lowland cows, no significant differences were found in blood glucose level, mineral content and enzyme activities.The effect of yeast culture on the availability of minerals for milk synthesis depende upon the dynamics of degradation of mineral bioplexes in the rumen and the cows'mineral status.The insignificant increase found in blood total protein content and the simultaneous small differences in blood urea N (BUN) and milk urea N (MUN) values in cows supplied with the yeast culture were attributed to a high ammonia incorporation into microbial protein in the rumen, which increased protein supply for milk protein synthesis and decreased N loss.
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