The Effect of Saccharomyces Cerevisiae 1026 Used Alone or With Vitamin-Mineral Premix on Biochemical Parameters of Blood and Milk in Dairy Cows

Abstract

When evaluating the effects of yeast culture (Saccharomyces cerevisiae $ ) 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 earlylactation Black and White Lowland cows, no significant differences were found in the glucose level, mineral contents and enzyme activities of the blood serum. The effect of yeast culture on the availability of minerals for milk synthesis depended 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 nitrogen (BUN) and milk urea nitrogen (MUN) values in cows supplied with the yeast culture were probably associated with a high ammonia incorporation into microbial protein in the rumen, which increased protein supply for milk protein synthesis and decreased the nitrogen loss.

Effect of the application of bioplexes of zinc, copper and manganese on milk quality and composition of milk and colostrum and some indices of the blood metabolic profile of cows

“…The data could document a better absorption of these elements from organic forms. It is in agreement with experiments conducted by Iwańska et al (1999) and Strusińska (2003), who administered amino acid chelates to cows. In the 2 nd and 3 rd month after calving no differences in mineral contents in milk were noted.…”

“…In experiments of Kinal et al (2005) on cows with average milk yield of 6 500 kg milk, who received Zn, Mn and Cu in organic forms, a significant increase in zinc and copper in blood serum was determined. The data confirm the results reported by Peterson et al (1987), Iwańska et al (1999) and Strusińska et al (2003), who indicated that the application of trace elements as chelates or yeast enriched with these microelements increased their bioavailability to rumen microorganisms and at the same time the possibility of better transfer of trace elements to the tissues, including blood. Other authors also pointed out this effect of the application of various forms of zinc and copper (Spears, 1996;Olson et al, 1999;Huert et al, 2002).…”

“…The progress of knowledge of the absorption of minerals verified a view concerning the mineral nutrition of animals (Spears, 1996). Taking into consideration various biological functions of minerals and high yield of cows, the interest in different forms of minerals applied in nutrition increased (Iwańska et al, 1999;Strusińska et al, 2003). Organic and inorganic forms of microelements have different levels of absorption and utilization by animals, depending on their solubility in animals' digestive tracts (Peterson et al, 1987;Olson et al, 1999;Huert et al, 2002).…”

The effect of live Saccharomyces cerevisiae yeast in the diet of rams on the digestibility of nutrients, nitrogen and mineral retention, and blood serum biochemical parameters

“…The same authors showed a significant increase in retention of total minerals, as well as potassium, copper, and zinc, when animals were fed a diet with live S. cerevisiae in comparison with the control ration. Moreover, Iwańska et al (14) showed that a supplement of live S. cerevisiae or mineral bioplexes increases the availability of minerals for ruminal microorganisms and increases their absorption to the blood of the host.…”

“…Strusińska et al (13) showed that a live yeast supplement increased the zinc and iron concentrations in milk but decreased that of copper. Iwańska et al (14) did not observe any changes in the serum levels of calcium, phosphorus, magnesium, or iron, but an increase in the level of these minerals was found in milk.…”