Rela??o entre infesta??o natural por Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) e n?veis de anticorpos da classe IgG para os agentes da Tristeza Parasit?ria Bovina e Borrelia sp. em bezerros

• Autor(a) principal: Silva, F?bio Jorge Moreira da
• Data de Publicação: 2008
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UFRRJ
• Texto Completo: https://tede.ufrrj.br/jspui/handle/tede/755
• topic: ELISA indireto; babesiose; bovino; carrapatos; indirect ELISA; babesiosis; cattle; ticks; Medicina Veterin?ria

This study was conducted with the objective to contribute with the agreement of the relation calves x ticks x hemoparasites in the sector of milk cows of the Farm of the Institute of Zootecnia (FAIZ) of the Universidade Federal Rural do Rio de Janeiro (UFRRJ). Seventeen female calves with age between 15 days old and 14 months old, between july of 2006 and june of 2007. These animals were subdivided in three ages bands: up to 2 months, between 3- 6 months and above of 7 months, in accordance with the handling of the property. Was realized ticks`s counting, collection of blood and hematological examination of all the animals in interval of 14 days. The exams were carrying through in laboratories of Parasites Diseases, Clinical Pathology of UFRRJ and the Serological of Embrapa Beef Cattle. Throughout 12 months, it can be verified the constant presence of larvaes, nymphs and females of tick Rhipicephalus (Boophilus) microplus. The frequency of positive animals for the indirect enzyme-linked immunosorbent assay (ELISA), for the agents of the Tick-borne Disease (Babesia bigemina, B. bovis and Anaplasma marginale) and Borrelia sp., was verified that in all ages bands exist positive serological animal. The frequency and antibody levels, as much for B. bigemina as for B. bovis, evaluated through the indirect ELISA, had been high. This fact associated with the absence of infection symptoms suggests a situation of immunization of the animals and an area of enzootically stable. None trend of seasonal distribution of infections for B. bigemina, B. bovis, A. marginale and Borrelia sp. was observed.