Bem-estar animal em invertebrados - estudo de caso: bicho-pau (Cladomorphus phyllinum) em Museu de Ciências
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TCC
Data de publicação
2023-06
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Citações (Scopus)
Autores
Martins, Layara
Orientador
Dall'Occo, Paola Lupianhes
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Os insetos da ordem Phasmatodea, popularmente conhecidos como bicho-pau, são frequentemente utilizados em programas de educação ambiental devido à facilidade de criação e manuseio. No entanto, na legislação brasileira, o bem-estar de invertebrados não é destacado como uma preocupação específica. O trabalho em questão tem como objetivo analisar a influência da manipulação de Cladomorphus phyllinum no bem-estar animal. Para isso, foram separados dois casais criados em um Museu de Ciências: um casal foi mantido em uma sala de criação e o outro casal foi utilizado em atividades da educação ambiental. Os dados observados durante o estudo foram coletados a partir de um repertório comportamental que inclui comportamentos de descanso, defesa, alimentação, reprodução e locomoção. Os resultados indicaram semelhanças nesse repertório entre os indivíduos, no entanto, os comportamentos de defesa foram notavelmente diferentes. No casal da sala de criação, foram observados 57% de atos de defesa, enquanto no casal manuseado por visitantes, esse número foi de apenas 17%, isso pode ser explicado pelo processo de habituação. Outro aspecto destacado foi a diferença nos comportamentos reprodutivos das fêmeas. Foi observada uma diferença de 10% na realização da oviposição, em que a fêmea manuseada por visitantes fez a postura de 55 ovos, enquanto a fêmea da sala de criação fez 45 ovos. Conclui-se que a manipulação não interfere negativamente no bem-estar do bicho-pau, já que esses animais permanecerão em cativeiro pelo restante de seu ciclo de vida. No entanto, é importante ressaltar que a qualidade de vida em cativeiro deve ser considerada, levando em conta que os insetos são animais capazes de exibir comportamentos indicativos de desconforto.
The insects of the order Phasmatodea, commonly known as stick insects, are often used in environmental education programs due to their ease of breeding and handling. However, in Brazilian legislation, the well-being of invertebrates is not specifically highlighted as a concern. The aim of this study is to analyze the influence of Cladomorphus phyllinum manipulation on animal welfare. For this purpose, two couples were separated and raised in a Science Museum: one couple was kept in a breeding room, and the other couple was used for environmental education activities. The data collected during the study were based on a behavioral repertoire that included resting, defense, feeding, reproduction, and locomotion behaviors. The results indicated similarities in this repertoire among individuals; however, defense behaviors were notably different. In the breeding room couple, 57% of defense acts were observed, while in the couple handled by visitors, this number was only 17%, which can be explained by the process of habituation. Another highlighted aspect was the difference in reproductive behaviors of the females. A 10% difference in oviposition was observed, with the visitor-handled female laying 55 eggs, while the breeding room female laid 45 eggs. It is concluded that manipulation does not negatively affect the well-being of stick insects, as these animals will remain in captivity for the rest of their lifespan. However, it is important to emphasize that the quality of life in captivity should be considered, considering that insects can display behaviors indicative of discomfort.
The insects of the order Phasmatodea, commonly known as stick insects, are often used in environmental education programs due to their ease of breeding and handling. However, in Brazilian legislation, the well-being of invertebrates is not specifically highlighted as a concern. The aim of this study is to analyze the influence of Cladomorphus phyllinum manipulation on animal welfare. For this purpose, two couples were separated and raised in a Science Museum: one couple was kept in a breeding room, and the other couple was used for environmental education activities. The data collected during the study were based on a behavioral repertoire that included resting, defense, feeding, reproduction, and locomotion behaviors. The results indicated similarities in this repertoire among individuals; however, defense behaviors were notably different. In the breeding room couple, 57% of defense acts were observed, while in the couple handled by visitors, this number was only 17%, which can be explained by the process of habituation. Another highlighted aspect was the difference in reproductive behaviors of the females. A 10% difference in oviposition was observed, with the visitor-handled female laying 55 eggs, while the breeding room female laid 45 eggs. It is concluded that manipulation does not negatively affect the well-being of stick insects, as these animals will remain in captivity for the rest of their lifespan. However, it is important to emphasize that the quality of life in captivity should be considered, considering that insects can display behaviors indicative of discomfort.
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Phasmatodea , repertório comportamental , educação ambiental , bem-estar animal , behavoural repertory , environmental education , animal welfare