herpesvírus bovino tipo 1 no sêmen bovine herpesvirus-1 in semen

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ID: 191044
1999
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Abstract
O herpesvírus bovino tipo 1 (HVB-1) é o agente causador da rinotraqueíte infecciosa bovina, além de estar associado a doenças do trato genital em bovinos. A transmissão do HVB-1 através da inseminação artificial (IA) pode ocasionar problemas reprodutivos nas vacas inseminadas, como endometrite, infertilidade, absorção embrionária e abortos. Animais infectados tornam-se portadores vitalícios do HVB-1 e podem apresentar episódios intermitentes de reexcreção viral. O HVB-1 poder ser encontrado no sêmen de touros, independente do desenvolvimento de anticorpos neutralizantes. Uma vez que os testes sorológicos não são suficientes para se estimar a presença do HVB-1 no sêmen e que as condições de processamento e armazenamento do sêmen são ideais para a preservação do vírus, somente o exame individual das partidas pode assegurar a comercialização de sêmen livre do vírus. Testes laboratoriais para detecção do HVB-1 no sêmen bovino e medidas adicionais para controlar a transmissão do vírus através da IA são apresentados.
Bovine herpesvirus 1 (BHV-1) is the causative agent of infectious bovine rhinotracheitis (IBR) and is also associated with genital disease in cattle. BHV-1 transmission by artificial insemination (AI) may cause reproductive problems in inseminated cows, such as endometritis, infertility, embryonic absorption and abortion. Infected animals are lifelong reservoirs of BHV-1 and may go through intermittent episodes of virus reexcretion. It is important to note that conditions of semen storage are optimal for virus survival. Additionally, BHV-1 can be found in bovine semen despite of the development of neutralizing antibody. Since serological tests are not sufficient to ascertain the presence of the virus in semen, the laboratory testing of all semen batches for BHV-1 is the only way to ensure the BHV-1-free status of the semen for commercialization. Laboratory tests used for BHV-1 detection in bovine semen and additional approaches to prevent the spread of BHV-1 through AI are presented.
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Authors ;Maurilio Andrade Rocha;Aurora Maria Guimarães Gouveia;Rômulo Cerqueira Leite
Journal Trials
Year 1999
DOI
10.1590/S0103-84781999000200032
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781999000200032
Keywords
semen latency

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