Effect of Selenium Enriched Yeast Culture Saccharomyces Cerevisiae Supplementation in TMR of Pregnant Heifers and Cows on the Colostrum Quality

The objective of this study was to evaluate the effect of selenium-enriched yeast culture Saccharomyces cerevisiae supplementation in TMR of pregnant cows and heifers on colostrum quality. Twenty high-pregnant cows of the Czech Fleckvieh cattle breed on the 2nd and higher lactation and twenty high pregnant heifers were divided into 2 groups (control and experimentaleach group of 10 cows).The control group (n = 10) without the Premix “Alkosel”(selenomethionin enriched Saccharomces cerevisae (NCYS R-397). The experimental groupn = 10) was with supplementation of premix “Alkosel” in a batch 3 mg/cow and day. The mixed feed ration (TMR) was same in all groups and based on maize silage (10 kg), pea silage (6.0 kg), meadow hay 0.5 kg), barley straw (2.0 kg), and 3 kg mixture (extracted soybean meal – 27%, extracted rapeseed meal – 40%, and concentrate mixture (corn–10%, barley–6%, wheat 10% and mineral mixture– 6%, feed salt – 1%.The premix Alkosel was applied in a mineral mixture. The blood sample from all animals was taken before the start of experiment ca. 23 days before the expected calving and second sampling was carried out within 24 hours after birth. In the blood serum of animals were analyzed immunoglobulin G (IgG), and enzyme activity gamma glutamyl transferase (GMT). Colostrum was collected from all animals at four-time intervals after birth and analyzed on the dry matter content, crude protein and imunoglobuline G (IgG). All colostrum quality parameters were statistically significantly (P < 0.05) influenced by the time of colostrum sampling after birth, especially the IgG content (cows control: 57.35 vs 36.47 vs. 18.29 vs 10.51 mg.ml-1 IgG.). The addition of selenomethionine from yeast culture did not significantly affect the composition and quality of colostrum. All colostrum parameters are highly statistically correlated (P