Lesion scoring technique for assessing the virulence and pathogenicity of Indian fifi eld isolates of avian Eimeria species

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dc.contributor.authorRaman, Muthusamy
dc.contributor.authorS. Banu, Samsudeen
dc.contributor.authorGomathinayagam, Sankaralingam
dc.contributor.authorD. Raj, Gopal
dc.contributor.authorTANUVAS
dc.date.accessioned2021-09-17T07:53:02Z
dc.date.available2021-09-17T07:53:02Z
dc.date.issued2011
dc.descriptionTNV_VA_2011_81(2)259-271en_US
dc.description.abstractChicken coccidiosis caused by the genus Eimeria is a major health impediment causing high morbidity and mortality in commercial poultry. Assessment of the virulence and pathogenicity of Eimeria species are the vital factors for formulating effective control strategies. The gross lesion score was used in this study for assessing the virulence and pathogenicity of indigenous six Eimeria sp. in a controlled experimental trial using six groups of one hundred and twenty chicks of three weeks of age, inoculated with 2 × 10 2 to 2 × 103 numbers of oocysts of six species of Eimeria. While an extended prepatent period (2 - 6 hrs) was confifi rmed in the majority of the species, the gross lesion scores were mostly within the low score of 1-2 compared to the international reference strains such as Houghton, so indicating possible natural attenuation of the fifi eld isolates. The gross lesion scores (GLS) were assessed ranging from a scale of 0 (no gross lesion) to 4 (most severe lesion). This study seems to be the fifi rst such attempt to standardize a lesion scoring technique for assessing the virulence and pathogenicity of indigenous isolates of Eimeria in the Indian sub-continent.en_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810175879
dc.keywordschickens, Eimeria, assessment, virulence, prepatent period, gross lesion scoreen_US
dc.language.isoEnglishen_US
dc.pages259-271en_US
dc.relation.ispartofseries;2
dc.subjectVeterinary Scienceen_US
dc.titleLesion scoring technique for assessing the virulence and pathogenicity of Indian fifi eld isolates of avian Eimeria speciesen_US
dc.title.alternativeVETERINARSKI ARHIVen_US
dc.typeArticleen_US
dc.volume81en_US
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