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Articles by A. Torres-Rodriguez
Total Records ( 2 ) for A. Torres-Rodriguez
  J.L. Vicente , L. Aviña , A. Torres-Rodriguez , B. Hargis and G. Tellez
  Concern about antimicrobial resistance has led to increased attention to alternatives for controlling infections and increasing performance in animal production. Probiotics and organic acids have gained attention as options in poultry industry. Our laboratory has been working in the selection of lactic acid bacteria, mainly from the genus Lactobacillus, as potential probiotic candidates. Previous data indicates that these selected probiotic bacteria are able to reduce Salmonella infection and improve performance in broiler and turkey under experimental and commercial trials in the USA. The selected probiotic organisms were used in field trials to evaluate their efficacy in commercial conditions in Mexico. In the present report, the probiotic culture significantly reduced mortality (p<0.01) compared to the control houses. Also, a consistent improvement of body weight (2.06%) and reduction of FCR (3.5%) was observed in the treated flocks. The results of this report suggest that this Lactobacillus-based probiotic culture could be useful to reduce mortality in commercial poultry farms
  A.D. Wolfenden , C.M. Pixley , J.P. Higgins , S.E. Higgins , B.M. Hargis , G. Tellez , J.L. Vicente and A. Torres-Rodriguez
  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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