In the study we investigated how post-hatch preventive administration of Enterococcus faecium AL41 affects growth performance, the intestinal immune parameters and barrier factors, and morphology of j Show more
In the study we investigated how post-hatch preventive administration of Enterococcus faecium AL41 affects growth performance, the intestinal immune parameters and barrier factors, and morphology of jejunum in chickens. Chicks were divided into two groups as control (C) and Enterococcus faecium AL41 (EF). Samples (n=10) from blood and small intestine were taken at days 5, 8, and 11 of the life. Body weight gain increased in EF treated chicks on day 11. From day 8 to 11quantity of IgA in intestinal flush was lower in EF group. Relative expression of occludin gene was up-regulated at day11 in EF group and in same group claudin 1 gene was up-regulated at days 5 and 11. Jejunal CD3 Show less