Dietary supplementation with hydrolyzed yeast and its effect on the performance, intestinal microbiota, and immune response of weaned piglets.

摘要: The objective of this study was to evaluate the effects autolyzed yeast on performance, cecal microbiota, and leukogram weaned piglets. A total 96 piglets commercial line at 21-day-old were used. experimental design a randomized block with four treatments (diets containing 0.0%, 0.3%, 0.6%, 0.9% yeast), eight replicates, three animals per pen in order daily weight gain, feed intake, conversion periods 0 15, 26, 36 days. Quadratic inclusion observed from 15 days, gain 26 days and, indicating an optimal level between 0.4% 0.5%. No effect addition piglet leukogram; however, i.m. application E. coli lipopolysaccharide reduced values ​​of leukocytes their fractions (neutrophils, eosinophils, lymphocytes, monocytes, rods). Therefore, when provided levels 0.5% improved piglets' performance.