| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 30.12 MB | Adobe PDF |
Authors
Abstract(s)
A popularidade dos répteis, enquanto animais de estimação, tem aumentado nas últimas décadas. De maneira a estudar o seu parasitismo gastrointestinal, o efeito das condições de maneio na presença de parasitas e o tipo de lesões e sinais clínicos provocados por parasitas de répteis mantidos em cativeiro, este trabalho foi dividido em três partes.
A primeira parte consistiu num rastreio parasitológico. Colheram-se amostras fecais frescas de 82 répteis (46 serpentes, 33 sáurios e 3 quelónios) a partir das quais se realizaram dois esfregaços a fresco e duas flutuações a cada animal. Foram encontrados parasitas do filo Apicomplexa (n=2), Metamonada (n=1) e Nematoda (n=2) em cinco (12,5% de prevalência média) serpentes das 46 testadas. Foram assinalados parasitas dos filos Amoebozoa (n=11), Apicomplexa (n=6), Ciliophora (n=9), Metamonada (n=13), Nematoda (n=17) e Platyhelminthes (n=1) em 25 (79,3% de prevalência média) dos 33 sáurios testados. Em tartarugas detetaram-se os filos Amoebozoa (n=1), Ciliophora (n=2), Metamonada (n=1) e Nematoda (n=3) nos 3 animais testados (79,7% prevalência média).
A outra parte do estudo consistiu na realização de necrópsias de 41 répteis (19 serpentes,19 sáurios e três quelónios).
Detetaram-se parasitas do filo Amoeboza (n=1), Apicomplexa (n=3) e Metamonada (n=1) em 4 serpentes. Parasitas dos filos Apicomplexa (n=2), Nematoda (n=8) e Platyhelminthes (n=1) foram encontrados em 11 sáurios. Nesta fase, não se encontraram parasitas em quelónios.
Na análise estatística das informações colhidas durante o estudo (terceira parte deste trabalho), encontrou-se uma associação estatisticamente significativa entre as condições de maneio dos répteis e a presença de parasitas. Encontrou-se também uma associação estatisticamente significativa entre a presença de parasitas e a manifestação de sinais clínicos do aparelho gastrointestinal.
Este estudo, no qual se determinou uma prevalência parasitária média global de 40,5% no rastreio parasitológico, reforça a ideia de que os parasitas gastrointestinais são um elemento relevante na manutenção de répteis em cativeiro. Estudos mais específicos e direcionados são necessários, quer ao efeito que os parasitas têm no hospedeiro, quer no papel que estes podem ter como potenciais causadores de zoonoses e contaminantes ambientais.
ABSTRACT - REPTILE GASTROINTESTINAL PARASITES IN A PET SHOP - Reptiles’ popularity as pets has increased in the last decades. In order to study the gastrointestinal parasitism, the effects of husbandry pratices on the prevalence of that parasites, the lesions and clinical signs caused by them the present study was divided in three sections. The first section comprise a parasitological survey. Fresh faecal samples were collected from 82 reptiles (46 snakes, 33 lizards and three chelonians) and were screened for gastrointestinal parasites by two fresh smears and two flotations of each animal. Parasites of the phyla Apicomplexa (n=2), Metamonada (n=1) and Nematoda (n=2) were found in five (12,5% of mean prevalence) of the 46 snakes tested. Parasites of the phyla Amoebozoa (n=11), Apicomplexa (n=6), Ciliophora (n=9), Metamonada (n=13), Nematoda (n=17) and Platyhelminthes (n=1) were found in 25 (79,3% of mean prevalence) of the 33 lizards tested. In chelonians the phyla Amoebozoa (n=1), Ciliophora (n=2), Metamonada (n=1) and Nematoda (n=3) were found in the three tested animals (79,7 % of mean prevalence). The second section of the study includes the necropsies of 41 reptiles (19 snakes, 19 lizards and three quelonians). Parasites of the phyla Amoeboza (n=1), Apicomplexa (n=3) and Metamonada (n=1) were detected in four snakes. The phyla Apicomplexa (n=2), Nematoda (n=8) and Platyhelminthes (n=1) were found in 11 lizards. In this section no parasites were found in chelonians. The statistical analysis (third section) of the data collected in this study revealed an association with statistical significance between the husbandry parameters and the presence of gastrointestinal parasites. It was aditionally found an association with statistical significance between the presence of gastrointestinal parasites and the manifestation of gastrointestinal clinical signs. This study, in wich was determined a global mean parasite prevalence of 40,5 % during the parasitic survey, reinforces the importance of the gastrointestinal parasites in captive pet reptiles. More narrow and directed studies are needed particularly on the effect of specific parasites in the host or their role as potential zoonotic agents and environmental contaminants.
ABSTRACT - REPTILE GASTROINTESTINAL PARASITES IN A PET SHOP - Reptiles’ popularity as pets has increased in the last decades. In order to study the gastrointestinal parasitism, the effects of husbandry pratices on the prevalence of that parasites, the lesions and clinical signs caused by them the present study was divided in three sections. The first section comprise a parasitological survey. Fresh faecal samples were collected from 82 reptiles (46 snakes, 33 lizards and three chelonians) and were screened for gastrointestinal parasites by two fresh smears and two flotations of each animal. Parasites of the phyla Apicomplexa (n=2), Metamonada (n=1) and Nematoda (n=2) were found in five (12,5% of mean prevalence) of the 46 snakes tested. Parasites of the phyla Amoebozoa (n=11), Apicomplexa (n=6), Ciliophora (n=9), Metamonada (n=13), Nematoda (n=17) and Platyhelminthes (n=1) were found in 25 (79,3% of mean prevalence) of the 33 lizards tested. In chelonians the phyla Amoebozoa (n=1), Ciliophora (n=2), Metamonada (n=1) and Nematoda (n=3) were found in the three tested animals (79,7 % of mean prevalence). The second section of the study includes the necropsies of 41 reptiles (19 snakes, 19 lizards and three quelonians). Parasites of the phyla Amoeboza (n=1), Apicomplexa (n=3) and Metamonada (n=1) were detected in four snakes. The phyla Apicomplexa (n=2), Nematoda (n=8) and Platyhelminthes (n=1) were found in 11 lizards. In this section no parasites were found in chelonians. The statistical analysis (third section) of the data collected in this study revealed an association with statistical significance between the husbandry parameters and the presence of gastrointestinal parasites. It was aditionally found an association with statistical significance between the presence of gastrointestinal parasites and the manifestation of gastrointestinal clinical signs. This study, in wich was determined a global mean parasite prevalence of 40,5 % during the parasitic survey, reinforces the importance of the gastrointestinal parasites in captive pet reptiles. More narrow and directed studies are needed particularly on the effect of specific parasites in the host or their role as potential zoonotic agents and environmental contaminants.
Description
Dissertação de Mestrado Integrado em Medicina Veterinária
Keywords
Amoebozoa Apicomplexa cativeiro Ciliophora loja de animais Metamonada Nematoda parasitas gastrointestinais Platyhelminthes Portugal répteis captivity gastrointestinal parasites pet store reptiles
Pedagogical Context
Citation
Carvalho, T.J.F. (2018). Parasitas gastrointestinais em répteis de uma coleção comercial. Dissertação de mestrado. Universidade de Lisboa, Faculdade de Medicina Veterinária, Lisboa.
Publisher
Universidade de Lisboa, Faculdade de Medicina Veterinária