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Publication
Recolha de dados biométricos e pesquisa de raiva em morcegos insetívoros de Portugal Continental
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Advisor(s)
Abstract(s)
A raiva é uma doença de origem viral erradicada na maior parte dos países da
União Europeia, ainda que sejam detetados casos esporádicos de raiva em humanos
transmitidas por animais como cães ou morcegos, sejam de animais exóticos ou
autóctones. É zoonótica que afeta principalmente o sistema nervoso central e assim que
aparecem os primeiros sintomas considera-se ser fatal. O método mais comumente
utilizado para a testagem em animais é a testagem por Polymerase Chain Reaction em
amostras de tecidos. Neste estudo recolheram-se cento e três cadáveres de morcegos
das espécies Pipistrellus pipistrellus, Pipistrellus pygmaeus, Eptesicus serotinus, Miniopterus
schreibersii, Rhinolophus hipposideros e Tadarida teniotis, do Centro de Recuperação e
Investigação de Animais Selvagens, Centro de Estudos e Recuperação de Animais
Selvagens e do Centro de Recuperação de Animais Selvagens de Montejunto, centros
de recuperação de Portugal Continental, que deram entrada nesses centros entre 2016
e 2023, com objetivo de realizar testagem de raiva e recolher alguns dados biométricos
dos indivíduos. A testagem de raiva foi então realizada por Polymerase Chain Reaction no
Instituo Nacional de Investigação Agrária e Veterinária através de amostras recolhidas
dos encéfalos dos morcegos. Para execução das necropsias foram tomadas todas as
medidas de segurança e usado o equipamento de proteção individual necessário. Os
resultados obtidos até à data mostraram que 20 individuos testaram negativo para a
raiva sendo dezanove da espécie Pipistrellus pipistrellus e um da espécie Pipistrellus
pygmaeus. Quanto aos dados biométricos recolhidos, nomeadamente pesagens,
medições dos comprimentos dos corpos e das asas foram comparados com os valores
médios das diferentes espécies, o que permitiu comprovar que muitos indivíduos chegam
aos centros de recuperação com pesos inferiores aos fisiológicos, por apresentarem
desidratação e desnutrição à entrada. A nível de comprimentos de asa e comprimento
de corpo, os mesmo estão dentro dos parâmetros descritos.
Rabies is a viral disease that has been eradicated in most European Union countries, although there are sporadic cases of rabies in humans transmitted by animals such as dogs or bats, whether exotic or indigenous. It is a zoonotic disease that mainly affects the central nervous system and as soon as the first symptoms appear it is considered fatal. The most commonly used method for testing animals is Polymerase Chain Reaction testing on tissue samples. In this study, one hundred and three bat corpses of the species Pipistrellus pipistrellus, Pipistrellus pygmaeus, Eptesicus serotinus, Miniopterus schreibersii, Rhinolophus hipposideros and Tadarida teniotis were collected from the Centro de Recuperação e Investigação de Animais Selvagens, Centro de Estudos e Recuperação de Animais Selvagens and Centro de Recuperação de Animais Selvagens de Montejunto, recovery centres in mainland Portugal, which were admitted to these centres between 2016 and 2023, with the aim of carrying out rabies testing and collecting some biometric data on the individuals. Rabies testing was then carried out by Polymerase Chain Reaction at the National Institute for Agrarian and Veterinary Research using samples taken from the bats' brains. All safety measures were taken to carry out the necropsies and the necessary personal protective equipment was used. The results obtained to date show that 20 individuals tested negative for rabies, nineteen of the Pipistrellus pipistrellus species and one of the Pipistrellus pygmaeus species. As for the biometric data collected, weighing, body and wing length measurements were compared with the average values for the different species, which showed that many individuals arrive at the recovery centres with weights lower than their physiological weights because they are dehydrated and malnourished on entry. In terms of wing length and body length, they are within the parameters described.
Rabies is a viral disease that has been eradicated in most European Union countries, although there are sporadic cases of rabies in humans transmitted by animals such as dogs or bats, whether exotic or indigenous. It is a zoonotic disease that mainly affects the central nervous system and as soon as the first symptoms appear it is considered fatal. The most commonly used method for testing animals is Polymerase Chain Reaction testing on tissue samples. In this study, one hundred and three bat corpses of the species Pipistrellus pipistrellus, Pipistrellus pygmaeus, Eptesicus serotinus, Miniopterus schreibersii, Rhinolophus hipposideros and Tadarida teniotis were collected from the Centro de Recuperação e Investigação de Animais Selvagens, Centro de Estudos e Recuperação de Animais Selvagens and Centro de Recuperação de Animais Selvagens de Montejunto, recovery centres in mainland Portugal, which were admitted to these centres between 2016 and 2023, with the aim of carrying out rabies testing and collecting some biometric data on the individuals. Rabies testing was then carried out by Polymerase Chain Reaction at the National Institute for Agrarian and Veterinary Research using samples taken from the bats' brains. All safety measures were taken to carry out the necropsies and the necessary personal protective equipment was used. The results obtained to date show that 20 individuals tested negative for rabies, nineteen of the Pipistrellus pipistrellus species and one of the Pipistrellus pygmaeus species. As for the biometric data collected, weighing, body and wing length measurements were compared with the average values for the different species, which showed that many individuals arrive at the recovery centres with weights lower than their physiological weights because they are dehydrated and malnourished on entry. In terms of wing length and body length, they are within the parameters described.
Description
Keywords
Dados biométricos Conservação Morcegos Epidemiologia e raiva Bats Epidemiology and rabies.
Citation
Fernandes, I.A.G.(2023).Recolha de dados biométricos e pesquisa de raiva em morcegos insetívoros de Portugal Continental. Escola Superior Agrária de Elvas. Elvas
Publisher
Escola Superior Agrária de Elvas