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International Journal of Poultry Science
Year: 2007  |  Volume: 6  |  Issue: 7  |  Page No.: 493 - 496

Evaluation of Spray Application of a Lactobacillus-based Probiotic on Salmonella enteritidis Colonization in Broiler Chickens

A.D. Wolfenden, C.M. Pixley, J.P. Higgins, S.E. Higgins, B.M. Hargis, G. Tellez, J.L. Vicente and A. Torres-Rodriguez    

Abstract: Spray application offers low-cost and efficient application of biologic and reduced concerns regarding diverse water quality and medicator/proportioner function. The objective of the present study was to evaluate the spray application of a Lactobacillus-based probiotic on Salmonella enteritidis (SE) colonization in broiler chickens. Day-of-hatch chicks were challenged with Salmonella enteritidis (SE) by oral gavage alone, challenged with SE and treated by coarse spray application of a commercially-availably Lactic-acid bacterial probiotic (FM-B11™), or challenged with SE and treated with B11 continuously in the Drinking Water (DW). Five days post-challenge, cecal tonsils were collected for presence or absence of SE. In Exp. 1, probiotic treatment by either spray or DW application significantly (p<0.05) reduced SE recovery (55% and 50% respectively; controls 85%) when chicks were held for 8h prior to challenge and placement. Similarly, when probiotic spray treatment or water treatment and challenge occurred simultaneously, with placement 8h after treatment, a marked and significant reduction of SE recovery was noted after 5d (10% and 40% respectively, controls 55%). In Exp. 2, when probiotic spray treatment and challenge occurred simultaneously, with placement 8h after treatment, a significant reduction of SE recovery was again noted in both the spray and DW application (80% controls, 15% spray, 15% DW). Taken together, these results suggest that spray application of B11, when performed in the manner described above, can be effective for protection of chicks against Salmonella infection.

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