RT Journal Article
SR Electronic
A1 Doležal, Petr
A1 Dvořáček, Jan
A1 Dvořáčková, Jitka
A1 Poštulka, Roman
A1 Doležal, Jan
A1 Szwedziak, Katarzyna
T1 The use of yeast culture in feeding of dairy cows
JF Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
YR 2014
VO 58
IS 5
SP 75
OP 82
DO 10.11118/actaun201058050075
UL https://acta.mendelu.cz/artkey/acu-201005-0009.php
AB The aim of this study was to determine the effect of a yeast culture (Saccharomyces cerevisiae CNCM I - 1077) addition in the diet of dairy cows on their rumen fermentation. Animals received a diet consisting of good maize silage with a higher dry matter content (18 kg), 6 kg of lucerne haylage, 5 kg of pea - silage, 3 kg of ensiled high moisture crimped corn, 1 kg of meadow hay, rape-cake 1 kg, brewer's grain silage 4 kg, and 8.0 kg feed mixture. The yeast culture was added to the mixture in the dose 2.8*10<sup>10</sup> cfu/day and cow. The supplement of yeast culture showed a positive effect on ruminal VFA production by experimental group cows in comparison with control, higher production (P < 0.01) of acetic acid (58.50 ± 1.2583<sup>b</sup> vs. 51.833 ± 2.409<sup>a</sup> %), and lower production of propionic and butyric acid (24.667 ± 1.3744<sup>a</sup> vs. 28.833 ± 1.863<sup>b</sup> %). The average utilisation of ammonia was higher by cows in treated group (12.267 ± 0.754 mmol/L), but difference was not significant. The difference in number of protozoa of cows in the control and experimental groups was significant (P < 0.05) different (308.333 ± 24.390<sup>a</sup> vs. 342.333 ± 10.9341<sup>b</sup> ths /1 ml of rumen fluid).