Prevention of colonization by Salmonella enteritidis PT4 in broiler chickens

Bolder, N.M.; Lith, L.A.J.T. van; Putirulan, F.F.; Jacobs-Reitsma, W.F.; Mulder, R.W.A.W.

doi:10.1016/0168-1605(92)90064-a

Cited by 19 publications

(6 citation statements)

References 2 publications

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“…Broilact has been shown to give good protection in chicks, not only against caecal colonisation, but also against subsequent invasion of specific organs (heart, liver and spleen) by S. enteritidis PT4 or S. typhimurium (Cameron & Carter, 1992;Mead, Schneitz, et al, 1989;Methner, Barrow, Martin, & Meyer, 1997;Nuotio, Schneitz, Halonen, & Nurmi, 1992;Schneitz, 1992). Broilact was also shown to be effective against Salmonella in the field (Bolder, van Lith, Putirulan, Jacobs-Reitsma, & Mulder, 1992;Palmu & Camelin, 1997;Wierup, Wold-Troell, Nurmi, & Hakkinen, 1988;Wierup, Wahlströ m, & Engströ m, 1992). In one of these studies, Bolder, Vereijken, Putirulan, and Mulder (1995) reported an additional protective effect against Campylobacter spp.…”

Section: Broilactmentioning

confidence: 93%

Competitive exclusion in poultry––30 years of research

2005

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Section: Broilactmentioning

confidence: 93%

Competitive exclusion in poultry––30 years of research

2005

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“…Numerous trials around the world have demonstrated conclusively that CE is an effective approach in preventing the colonization of Salmonella in poultry. To obtain the maximum protective effects, however, CE cultures should be administered to chicks as soon as possible after hatching (Bolder et al, 1992).…”

Section: Introductionmentioning

confidence: 99%

Prevention of Salmonella Typhimurium colonization and organ invasion by combination treatment in broiler chicks

Revolledo

Ferreira

2009

Poultry Science

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The effects in broiler chicks of treatment with a competitive exclusion (CE) product, an experimental dietary probiotic, and the abiotic beta-glucan on cecal colonization, organ invasion, and serum and intestinal IgG and IgA levels to Salmonella challenge was evaluated. Four groups of 1-d-old chicks were treated by oral gavage on d 1 with an appropriate dose of a commercial CE product. Three groups received daily doses of probiotic, beta-glucan, or both, for 6 d. Three other groups were fed daily from d 1 onwards with probiotic, beta-glucan, or both. Subgroups of 30 chicks from each group were challenged on d 1, 9, 16, or 23 with 10(7) cfu/ mL of Salmonella Typhimurium (1769NR) and killed 7 d later. Control groups were maintained untreated and remained unchallenged (negative control), or were challenged with Salmonella Typhimurium (1769NR; positive control), as described above. Cecum, liver, and spleen samples were examined for the presence of Salmonella, whereas serum and intestinal fluid samples were assayed for total antibody (IgG and IgA) concentrations. Data were analyzed by 1-way ANOVA, and means were compared using Duncan's multiple range test. In comparison with other treatments, those involving CE product and beta-glucan, with or without probiotic during the first week, resulted in a superior inhibition of cecal colonization and organ invasion by Salmonella and also offered a higher level of protection (P < 0.05). During the second week, treatments containing experimental dietary probiotic and beta-glucan, with or without CE product, resulted in an inhibition of liver invasion (P < 0.05). The IgA levels were significantly higher (P < 0.05) in intestinal fluid compared with serum, whereas IgG had low levels. The results in the first and third week indicate that combination treatments involving CE product, probiotic, and beta-glucan are a more effective control of Salmonella colonization than the corresponding individual preparations.

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“…It is likely that natural salmonella infections result from the presence of bacteria in the immediate environment (Muir et al, 1998). Seeder birds have been used previously to examine the lateral transmission of infectious pathogens in chickens (Migaki and Babcock, 1981;Bolder et al, 1992). Our lateral transfer results indicated that the loss of flagella and fimbriae may have slightly delayed colonization of the chick intestinal tract by salmonellae transmitted from the immediate environment.…”

Section: Isolation Ofmentioning

confidence: 69%

Contribution of fimbriae and flagella ofSalmonella enteritidisto colonization and invasion of chicks

Dibb-Fuller

Woodward

2000

Avian Pathology

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Isogenic mutants of Salmonella enteritidis defective for the elaboration of fimbrial types SEF14, SEF17, SEF21 and flagella were used to study the contribution these organelles made to colonization, invasion and lateral transfer in young chicks. The caecum, liver and spleen were colonized within 24 h following oral inoculation of 1-day-old chicks with 10(5) wild-type S. enteritidis strain LA5. However, for some mutants, the numbers of organisms recovered from internal organs was reduced significantly, particularly at 24h post-inoculum, which supported the hypothesis that the organelles contribute to invasion and dissemination to internal organs. Specifically, mutations affecting SEF17, SEF21 and flagella contributed to a delay in colonization of the spleen, and those affecting SEF21 and flagella delayed colonization of the liver. Lower numbers of bacteria were recovered from the caecum with mutants deficient in elaboration of SEF21. Sentinel birds were colonized by LA5 or EAV40 (14s(-), 17(-), 21(-), fla(-)) directly from the environment within 2 days, although a consistent slight delay was observed with the multiple mutant. Overall, our data suggest a collective role for SEF17, SEF21 and flagella, but not SEF14, in the early stages of colonization and invasion of young chicks by S. enteritidis, but these surface appendages appear unnecessary for colonization of birds from their immediate environment.

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Prevention of colonization by Salmonella enteritidis PT4 in broiler chickens

Cited by 19 publications

References 2 publications

Competitive exclusion in poultry––30 years of research

Competitive exclusion in poultry––30 years of research

Prevention of Salmonella Typhimurium colonization and organ invasion by combination treatment in broiler chicks

Contribution of fimbriae and flagella ofSalmonella enteritidisto colonization and invasion of chicks

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