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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Estudo anatomopatológico da mionecrose infecciosa viral (IMNV) no camarão cultivado, Litopenaeus vannamei, em Pernambuco,Brasil

SILVA, Verônica Arns da 22 February 2007 (has links)
Submitted by (edna.saturno@ufrpe.br) on 2017-02-22T16:21:30Z No. of bitstreams: 1 Veronica Arns da Silva.pdf: 500226 bytes, checksum: 2a21789fca9964130708e123521a1f6c (MD5) / Made available in DSpace on 2017-02-22T16:21:30Z (GMT). No. of bitstreams: 1 Veronica Arns da Silva.pdf: 500226 bytes, checksum: 2a21789fca9964130708e123521a1f6c (MD5) Previous issue date: 2007-02-22 / Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq / The Infectious Myonecrosis Viral (IMNV), restricted action to the Brazilian northeast up to 2006, is disease of bigger negative impact in the shrimp cultured of the region. Having the objective to verify occurrence and evolution of the IMNV in Litopenaeus vannamei cultured on the coast of Pernambuco, Brazil, histopathological examination in 60 samples of shrimps from four farms in two cycles of aquaculture was proceeded. The histopatological findings had been correlated the data of the wet mount and the inquiry. Suggestive injuries of IMNV (coagulation necrosis, muscular hemocitic infiltration, spheroid of the ectopic lynphoid organ) were found in samples of the four studied farms with bigger occurrences in the first cycle. However, in the rainy period it had reduction of the occurrence, being associated the handling change. The raise time and the density were variables which influenced significantly (P<0,05) in the manifestation of the IMNV. / A Mionecrose Infecciosa Viral (IMNV), de ação restrita ao nordeste brasileiro até 2006, é a doença de maior impacto negativo na carcinicultura da região. Com objetivo de verificar ocorrência e evolução da IMNV em Litopenaeus vannamei, cultivado no litoral de Pernambuco, Brasil, procedeu-se ao exame histopatológico em 60 amostras, provenientes de quatro fazendas, em dois períodos (estio e chuvoso). Os resultados histopatológicos foram relacionados com os do exame a fresco e do inquérito. Em amostras das quatro fazendas foram identificadas lesões sugestivas de IMNV (necrose de coagulação, infiltração hemocítica na musculatura, esferóides ectópicos do órgão linfóide), havendo maior ocorrência de lesões no período de estio. Entretanto, no período chuvoso houve redução da ocorrência, sendo associada a mudança de manejo. O tempo de cultivo e a densidade de estocagem, foram variáveis que influenciaram significativamente (P<0,05) na manifestação da IMNV.

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