The concentration of secretory IgA (sIgA) in intestine flush and solid organs (spleen, bursa) in chickens pretreated with probiotic strain Enterococcus faecium AL41 (EF) and challenged with Salmonella Enteritidis PT4 (SE) was assessed. Forty 1-day-old chickens Cobb 500
were divided into four groups: control, EFAL41, SE and combined EFAL41+SE. The increased concentration of sIgA was determined on day 4 after salmonella infection in the intestine flush in EFAL41group. In combined EFAL41+SE group significant increase of sIgA in the intestine flush was found
7 days post-infection. Pre-treatment of chickens with E. faecium AL41 also showed beneficial effect in bursa in EFAL41 and EFAL41+SE groups. In spleen, total IgA was increased only in SE group. The results demonstrated positive effect of E. faecium AL41 on IgA production in chickens'
intestine and solid organs after S. Enteritidis PT4 challenge. Validity of method using for IgA evaluation in solid organ was proved.
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E. faecium AL41;
Document Type: Research Article
Department of Pathological Anatomy, University of Veterinary Medicine and Pharmacy, Košice, Slovak Republic
Department of Epizootology and Parasitology, University of Veterinary Medicine and Pharmacy, Košice, Slovak Republic
May 4, 2015
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