Skin test and tick immune status in susceptible and resistant cattle in Brazil

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorBechara, G. H.
dc.creatorMorelli Júnior., J.
dc.creatorSzabó, M. P. J.
dc.date2014-05-27T11:19:59Z
dc.date2016-10-25T18:16:44Z
dc.date2014-05-27T11:19:59Z
dc.date2016-10-25T18:16:44Z
dc.date2000-12-01
dc.date.accessioned2017-04-06T00:58:18Z
dc.date.available2017-04-06T00:58:18Z
dc.identifierTropical Veterinary Diseases. Annals of the New York Academy of Sciences, v. 916, p. 570-575, 2000.
dc.identifier0077-8923
dc.identifierhttp://hdl.handle.net/11449/66351
dc.identifierhttp://acervodigital.unesp.br/handle/11449/66351
dc.identifier10.1111/j.1749-6632.2000.tb05338.x
dc.identifierWOS:000171939300072
dc.identifier2-s2.0-0034534342
dc.identifierhttp://dx.doi.org/10.1111/j.1749-6632.2000.tb05338.x
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/887933
dc.descriptionA cutaneous hypersensitivity test (CHT) was used to correlate host resistance to ticks and type of reaction elicited to unfed larval extract-ULE of the cattle tick Boophilus microplus in European and Indian cattle. Twenty calves were separated into four groups of five animals each: naïve or preinfested Indian or European cattle. CHT was induced by intradermal inoculation of 0.1 ml of ULE cattle tick B. microplus (50 μg protein) in the calf ear. Ear thickness was measured using calipers before and 10 min, 1, 2, 6, 18, 24, 48, 72, 96, and 144 h postinoculation (PI). Preinfested European calves showed only an immediate type reaction with maximum response (75% increase in ear thickness) at 10 min PI. On the other hand, preinfested Indian calves presented an immediate response with maximum reaction (70% increase in ear thickness) between 10 min and one hour PI, and a delayed type reaction at 72 h PI (60% increase in ear thickness). These results point out the crucial role of the cellular immune response of cattle in the expression of resistance to cattle tick B. microplus. Skin test might be useful in the ranking of cattle according to the susceptibility/resistance to ticks.
dc.languageeng
dc.relationAnnals of the New York Academy of Sciences
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectallergy test
dc.subjectanimal experiment
dc.subjectanimal model
dc.subjectBoophilus microplus
dc.subjectBrazil
dc.subjectcattle
dc.subjectcattle disease
dc.subjectconference paper
dc.subjectinfection resistance
dc.subjectinfection sensitivity
dc.subjectinfestation
dc.subjectnonhuman
dc.subjectskin test
dc.subjectAnimals
dc.subjectCattle
dc.subjectCattle Diseases
dc.subjectDisease Susceptibility
dc.subjectEurope
dc.subjectImmunity, Natural
dc.subjectIndia
dc.subjectIxodes
dc.subjectSkin Tests
dc.subjectTick Infestations
dc.subjectAcari
dc.subjectAnimalia
dc.subjectBos taurus
dc.titleSkin test and tick immune status in susceptible and resistant cattle in Brazil
dc.typeOtro


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