Concurrent Salmonella Typhimurium and Eimeria Necatrix Infections in Chicks

Stephens, J. F.; Barnett, B. D.; Holtman, D. Frank

doi:10.3382/ps.0430352

Cited by 19 publications

(5 citation statements)

References 3 publications

(1 reference statement)

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“…In the present study, comparable results were obtained in the chickens infected with S. typhimurium alone, i.e., the organisms were found often in the ceca but were seldom recovered from small intestinal contents. Stephens et al (1964) suggested that 5. typhimurium persists in and permeates the damaged portion of intestine of the coccidiainfected chick more than in the undamaged intestine of the healthy chick. Moreover, Hikasa et al (1982) observed by fluorescent antibody technique that the invasion of S. typhimurium into the cecal wall was enhanced by E. tenella infection.…”

Section: «mentioning

confidence: 97%

“…Recent studies have shown that Salmonella typhimurium infection in chickens was enhanced by infection with Eimeria necatrix (Stephens et al, 1964;Stephens and Vestal, 1966) or E. tenella (Arakawa et al, 1981;Baba et al, 1982). Under field conditions however, incicence of coccidiosis caused by E. acervulina or E. maxima was greater than that caused by E. necatrix or E. tenella (Jeffers, 1974a;1974b;Oikawa et al, 1979).…”

Section: Introductionmentioning

confidence: 92%

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Effects of Infection of Eimeria tenella, E. acervulina, and E. maxima upon Salmonella typhimurium Infection in Chickens

et al. 1984

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Three experiments were conducted to examine whether Salmonella typhimurium infection is enhanced by concurrent infection with Eimeria tenella, E. acervulina, or E. maxima. There were two groups in each experiment: birds infected with a daily oral dose of approximately 1 X 10(4) cfu of S. typhimurium for 5 days after coccidial infection and birds infected with S. typhimurium alone with the similar exposure schedule. Chickens were necropsied 7, 10, and 14 days after coccidial infection. The numbers of S. typhimurium in the contents of ceca and small intestine were counted, and numbers of chickens positive for S. typhimurium in the liver and bile were examined. In E. tenella infection, the S. typhimurium counts in the ceca and small intestine of concurrently infected chickens were significantly greater than those of birds infected with S. typhimurium alone. In E. acervulina infection, the S. typhimurium counts in the ceca of chickens killed 14 days after E. acervulina infection and the numbers of birds positive for S. typhimurium in the ceca of chickens killed 10 and 14 days after E. acervulina infection were significantly greater than those of chickens infected with S. typhimurium alone. In E. maxima infection, the numbers of birds positive for S. typhimurium in the ceca and liver of chickens killed 7 days after E. maxima infection were significantly greater than those of birds infected with S. typhimurium alone. Results of this study indicate that infection with E. acervulina or E. maxima is able to enhance S. typhimurium infection in chickens.

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Section: «mentioning

confidence: 97%

Section: Introductionmentioning

confidence: 92%

Effects of Infection of Eimeria tenella, E. acervulina, and E. maxima upon Salmonella typhimurium Infection in Chickens

et al. 1984

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“…Earlier workers have used large doses, ranging from 10 8 to 10 10 CFU of S. typhimurium/bird, to induce salmonella infections in untreated chickens (Brown et al, 1975;Brownellrfa/., 1969;1970a, 6;¥a.nz\\\etal, 1971;O\es\uketal, 1969) and in birds infected with E. necatrix (Stephens et al, 1964;Stephens and Vestal, 1966). However, our previous studies have demonstrated that lower doses of S. typhimurium about 10 4 CFU/bird given for 5 consecutive days, were sufficient to establish S. typhimurium infections in chickens with concurrent caecal coccidiosis (Arakawa etal., 1981;Hikasa^a/., 1982).…”

Section: Discussionmentioning

confidence: 99%

Infection bySalmonella typhymurium, S. agona, S. enteritidisorS. infantisof chicks with caecal coccidiosis

Baba

Yaono

Fukata

et al. 1985

British Poultry Science

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Experimental infections of Salmonella typhimurium, S. agona, S. enteritidis or S. infantis were studied in chicks infected with Eimeria tenella. In all experiments, 4-d old birds were given 5 daily oral doses of approximately 10(4) salmonella organisms per bird. One day before this inoculation one group of birds received a single dose, in the range 1 X 10(4) to 4 X 10(4) sporulated oocysts of E. tenella per os whilst the other group was not inoculated and served as the control. Chicks were examined post morten 7, 10 or 14 d after receiving coccidia. With S. typhimurium infection, the number of salmonellas in the caeca of the E. tenella-infected birds was greater than in those infected only with salmonella. With S. agona and S. enteritidis, the counts of salmonella in the caeca and the numbers of birds positive for salmonella in the caeca and liver were greater in the E. tenella-infected birds. The rate of infection of S. infantis was not increased by caecal coccidiosis.

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“…Infection with Eimeria spp. has been identified as a factor that enhances the establishment and persistence of concurrent infection with S. Typhimurium in the intestinal tract of chickens (Stephens et al ., 1964;Stephens & Vestal, 1966;Arakawa et al ., 1981;Baba et al ., 1982), suggesting that S. Typhimurium persists in and penetrates the damaged mucosa of the intestine of the chickens infected with coccidia. For the same reason, the histotrophic phase of A.galli may play an important role in developing a salmonella carrier state in chickens.…”

Section: Discussionmentioning

confidence: 99%

Infection and excretion ofSalmonellaEnteritidis in two different chicken lines with concurrentAscaridia galliinfection

et al. 2006

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Studies on the impact of interaction of Salmonella enterica serovar Enteritidis and the parasitic nematode Ascaridia galli with the avian host were undertaken with particular emphasis on infection and excretion of these pathogens in two different layer lines. A total of 148 salmonella-free 1-day-old chickens (73 Hellevad and 75 Lohmann Brown) were randomly divided into five groups for each line. Group 1 served as an uninoculated control group. Groups 2 and 3 were infected with A. galli and S. Enteritidis, respectively. Group 4 was first infected with S. Enteritidis and subsequently with A. galli, and vice versa for group 5. The number of chickens excreting S. Enteritidis was significantly higher (P < 0.001) in the groups infected with both S. Enteritidis and A. galli compared with those only infected with S. Enteritidis over time. Furthermore, excretion of S. Enteritidis over time was significantly higher (P < 0.001) in the group first infected with S. Enteritidis and subsequently with A. galli compared with the group infected in the reverse order. No significant differences were observed between the two lines concerning excretion of S. Enteritidis over time in any group (P = 0.61 (group 3), P = 0.73 (group 4), P = 0.31 (group 5)). A. galli established itself significantly better (P = 0.02) in the group first infected with A. galli and subsequently with S. Enteritidis compared with the group infected in the reverse order. Furthermore, the A. galli infection rate was significantly higher (P = 0.02) in Hellevad chickens compared with Lohmann Brown chickens at the end of the experiment.

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Concurrent Salmonella Typhimurium and Eimeria Necatrix Infections in Chicks

Cited by 19 publications

References 3 publications

Effects of Infection of Eimeria tenella, E. acervulina, and E. maxima upon Salmonella typhimurium Infection in Chickens

Effects of Infection of Eimeria tenella, E. acervulina, and E. maxima upon Salmonella typhimurium Infection in Chickens

Infection bySalmonella typhymurium, S. agona, S. enteritidisorS. infantisof chicks with caecal coccidiosis

Infection and excretion ofSalmonellaEnteritidis in two different chicken lines with concurrentAscaridia galliinfection

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