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The aim of the study was to establish the influence of dried yeast and a preparation isolated from the walls of beer yeast cells (MOS) on the yield and composition of milk of Polish Hf breed cows (red-white strain), fed in the PMR system, during the first 100 days of lactation, and taking physiological-biological as well as morphotic blood factors into consideration. Dried yeasts produced by InterYeast®...
The examinations of the effect of feed supplements, Acetona and Melwit, and ergotropics, Avotan and Avatec, in feeding dairy cows, were carried out on low-land black-and- white cows, in various lactation periods and at low and high nutrition levels. When compared to the control sample, it was found out that at a high nutrition level, Melwit and Acetona increased milk yield by 11.3% and 3.6% respectively,...
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