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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

Lesões sugestivas de infecção hipodermal e necrose hematopoiética em camarão marinho, relacionadas com variáveis de cultivo

BEZERRA, Suely Santos 23 February 2007 (has links)
Submitted by (edna.saturno@ufrpe.br) on 2017-02-22T12:37:59Z No. of bitstreams: 1 Suely Santos Bezerra.pdf: 418523 bytes, checksum: 6cbf43e2cf1c398824dd661f7ea8c038 (MD5) / Made available in DSpace on 2017-02-22T12:37:59Z (GMT). No. of bitstreams: 1 Suely Santos Bezerra.pdf: 418523 bytes, checksum: 6cbf43e2cf1c398824dd661f7ea8c038 (MD5) Previous issue date: 2007-02-23 / It can be observed nowadays that the increase in the commercial shrimp produc-tion occurs concomitantly with an enhancement of the incidence of diseases. These last ones can cause innumerable damages to the shrimp farmers in the whole world. Amongst these diseases, it can be distinguished the Infectious Hypodermal and Hema-topoietic Necrosis (IHHN), with viral etiology, that can be characterized by not causing great mortality, but body deformities. In addition to this, it frequently leads shrimp to heterogenic growth. For viruses diagnosis histology is an efficient tool, allowing the verification of the health of these crustaceans. This study aimed the observation of the occurrence of IHHN characteristic histopatologic injuries in Litopenaeus vannamei, and its relation with parameters of culture of marine shrimp farms in the state of Per-nambuco. After multiple regression statistic analysis it could be concluded that the tem-perature of the water of the pound and its oxygen availability are narrowly related with the occurrence of those histopatologic injuries. / Ao mesmo tempo em que crescem os cultivos comerciais de camarão, observa-se o aumento da incidência de enfermidades que podem causar inúmeros prejuízos aos carcinicultores em todo o mundo. Dentre essas enfermidades, destaca-se a Infecção Hi-podermal e Necrose Hematopoiética (IHHN), de etiologia viral que, embora não cause grandes taxas de mortalidade, produz retardo no desenvolvimento e deformidades nos camarões. Para o diagnóstico dessa virose a histologia tem sido uma ferramenta bastante eficiente e que permite maior monitoramento da sanidade desses crustáceos. Desta for-ma, objetivou-se estudar a IHHN em Litopenaeus vannamei relacionando lesões histo-patológicas características e sua relação com variáveis de cultivo. Com base em regres-sões múltiplas conclui-se que existe uma alta relação entre as variáveis de cultivo tem-peratura e oxigênio e a ocorrência destas lesões.

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