RT Journal Article
SR Electronic
A1 Doležal, Petr
A1 Doležal, Jan
T1 The yeast culture Saccharomyces cerevisiae (Strain 47) as manipulator of rumen fermentation in postpartal period of dairy cows
JF Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
YR 2014
VO 53
IS 1
SP 27
OP 34
DO 10.11118/actaun200553010027
UL https://acta.mendelu.cz/artkey/acu-200501-0004.php
AB In the present study, examined was the effect of a yeast culture (Saccharomyces cerevisiae, Strain 47) on rumen fermentation of cows. Animals received a diet consisting of good maize silage with a higher dry matter content (16 kg), 16 kg of clovergrass haylage, 3 kg of meadow hay and 7.5 kg feed mixture. The yeast culture was added to the mixture in the dose 6 g/day and cow. The supplement of yeast culture showed a positive effect on VFA production in comparison with control (1.16±0.013<sup>B</sup> vs. 0.84±0.063<sup>A</sup> g/100 ml), and lower production of lactic acid. The utilisation of ammonia was higher by cows in treated group (8.68±0.084<sup>A</sup> mmol/L). The difference in number of protozoa of cows in the control and experimental groups was significant (302.0±12.349<sup>A</sup> vs. 359.2±1.304<sup>B</sup> ths /1 ml of rumen fluid).