Effect of the use of autolyzed brewers yeast in compound feeds for weaned pigs
Keywords:
autolyzed brewer’s yeast , weaned pigs, gainAbstract
A scientific and economic experiment was conducted at the Agricultural Institute – Shumen with 2 groups of 21 pigs in each, or a total of 42 weaned pigs of the Danube white breed. The pigs were reared in raised pens with 7 animals in each pen, 3 pens in a group. The experiment started at 9.497–9.500 kg live weight and ended when the animals reached 30.081–32.760 kg. The aim of the study was to determine the influence of the use of autolyzed brewer’s yeast in weaned pigs on productivity and some hematological parameters. The animals of group I were control, and those of group II were experimental. In the compound feed of the pigs of the experimental group, 3% of the soybean meal was replaced with added autolyzed brewer’s yeast. Substitution of 3% of soybean meal with autolyzed brewer’s yeast in compound feed for weaned pigs (9.5 kg to 30.081–32.760 kg) of the Danube White breed increased feed consumption by 11.48% (p < 0.05) and the average daily gain increase by 16.50% (p < 0.01). The inclusion of brewer’s yeast has a beneficial effect on the health of the piglets, expressed through some hematological indicators (significantly lower values of granulocytes, leukocytes and triglycerides).
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