The effect of concurrent infections with pasteurella multocida and ascaridia galli on free range chickens

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dc.contributor.authorDahl, C.
dc.contributor.authorPermin, A
dc.contributor.authorChristensen, J.P
dc.contributor.authorBisgaard, M
dc.contributor.authorMuhairwa, A.P
dc.contributor.authorPetersen, K.M.D
dc.contributor.authorPoulsen, J.S.D
dc.contributor.authorJensen, A.L
dc.date.accessioned2022-05-07T11:06:43Z
dc.date.available2022-05-07T11:06:43Z
dc.date.issued2002-01-26
dc.description.abstractPasteurella multocida and Ascaridia galli are observed with high prevalences in free range chickens in Denmark, but the impact is unknown. A study was carried out to examine the interaction between A. galli and P. multocida in chickens and the impact on production. Five groups, each with 20 18-week-old Lohmann Brown chickens were infected. Group 1 was orally infected with 1000 50 embryonated A. galli eggs. Group 2 received 10 4 cfu P. multocida intratracheally. Group 3 was infected with A. galli and subsequently with P. multocida. Group 4 was infected with P. multocida followed by A. galli. Group 5 was the control. The study ran for 11 weeks where clinical manifestations, weight gain and egg production were recorded. Excretion of P. multocida was determined on individual basis and blood smears were made for differential counts. At the end of the study pathological lesions and the number of adult worms, larvae and eggs in the faeces were recorded. The birds were more severely affected when infected with both pathogens compared to single infections with A. galli or P. multocida, respectively. A lower weight gain and egg production was observed with dual infections. A. galli infection followed by a secondary P. multocida infection resulted in more birds with pathological lesions and continued P. multocida excretion. In conclusion a negative interaction between A. galli and P. multocida was observed and it is postulated that free range chickens are at higher risk of being subjected to outbreaks of fowl cholera when they are infected with A. galli. # 2002 Elsevier Science B.V. All rights reserved.en_US
dc.identifier.urihttps://www.suaire.sua.ac.tz/handle/123456789/4089
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.subjectChickenen_US
dc.subjectEpidemiologyen_US
dc.subjectPasteurella multocidaen_US
dc.subjectAscaridia gallien_US
dc.subjectConcurrent infectionen_US
dc.subjectInteractionsen_US
dc.titleThe effect of concurrent infections with pasteurella multocida and ascaridia galli on free range chickensen_US
dc.typeArticleen_US
dc.urlwww.elsevier.com/locate/vetmicen_US

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