Macroscópia do encéfalo de catetos (Pecari tajacu, Linnaeus, 1758)
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU) |
Texto Completo: | https://repositorio.ufersa.edu.br/handle/tede/822 |
Resumo: | The collared peccary (Pecari tajacu), a small-sized, omnivorous and diurnal animal, lives in groups of up to 20 animals in several areas of Brazil, the Brazilian northeast included. It is easily adapted to captive breeding and stands out in relation to cattle as an alternative protein source for human consumption, in addition to other commercial applications, posing less damage to the environment. Because there is a scarcity of studies addressing this animal, this work aimed to perform craniometry and morphometry of its cranium, as well as to describe the morphology of the encephalon and its arterial vascularization, in ventral view. We used 14 animals that died of natural causes. These had both their carotid arteries cannulated and fixation in 10% formaldehyde was then performed. From that total, ten animals were injected with latex solution, duly stained, in order to make the blood vessels evident. The skin, as well as the musculature, were rebounded. Craniometric measurements were performed. Subsequently, the encephalons were removed from the crania for measurement, dissection and description. Photographs were taken for demonstration of the structures and, after collection, the database was assembled. In the statistical analysis of the metric data, unpaired Student's t-test and Pearson’s correlation study were conducted. Thus, a significant difference was observed between the male and female collared peccaries, with regard to the Total Head Length, as well as to the face length, the cranium width, face width, and right cerebral hemisphere length, always with higher values for males. In females, the left cerebral hemisphere is wider than the right one. There was a positive correlation between the variable total head length and the right cerebral hemisphere width, in both males and females. The brain-to-body weight ratio of the collared peccaries was, on average, 0.42%. This is a gyrencephalic animal with a developed neocortex, although without evidence of sulci and gyri symmetry between the right and left cerebral hemispheres, nor between the different specimens. The arterial vascularization of the base of the encephalon is presented as a closed circuit, which is dependent on the carotid artery of the encephalon, both the antimeres, and the basilar artery, in all the analyzed specimens. The middle cerebral arteries ranged from one to three vessels, originating from the rostral branch of the cerebral carotid artery. The basilar artery results from the confluence of the vertebral arteries of both the antimeres and the ventral spinal artery. This species tends to fit into type II, of De Vriese's classification |
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Macroscópia do encéfalo de catetos (Pecari tajacu, Linnaeus, 1758)Macroscopy of the encephalon of collared peccaries (Pecari tajacu, Linnaeus, 1758)NeuroanatomiaMorfologiaMorfometriaVascularizaçãoEncéfaloNeuroanatomyMorphologyMorphometryVascularizationEncephalonCNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIAThe collared peccary (Pecari tajacu), a small-sized, omnivorous and diurnal animal, lives in groups of up to 20 animals in several areas of Brazil, the Brazilian northeast included. It is easily adapted to captive breeding and stands out in relation to cattle as an alternative protein source for human consumption, in addition to other commercial applications, posing less damage to the environment. Because there is a scarcity of studies addressing this animal, this work aimed to perform craniometry and morphometry of its cranium, as well as to describe the morphology of the encephalon and its arterial vascularization, in ventral view. We used 14 animals that died of natural causes. These had both their carotid arteries cannulated and fixation in 10% formaldehyde was then performed. From that total, ten animals were injected with latex solution, duly stained, in order to make the blood vessels evident. The skin, as well as the musculature, were rebounded. Craniometric measurements were performed. Subsequently, the encephalons were removed from the crania for measurement, dissection and description. Photographs were taken for demonstration of the structures and, after collection, the database was assembled. In the statistical analysis of the metric data, unpaired Student's t-test and Pearson’s correlation study were conducted. Thus, a significant difference was observed between the male and female collared peccaries, with regard to the Total Head Length, as well as to the face length, the cranium width, face width, and right cerebral hemisphere length, always with higher values for males. In females, the left cerebral hemisphere is wider than the right one. There was a positive correlation between the variable total head length and the right cerebral hemisphere width, in both males and females. The brain-to-body weight ratio of the collared peccaries was, on average, 0.42%. This is a gyrencephalic animal with a developed neocortex, although without evidence of sulci and gyri symmetry between the right and left cerebral hemispheres, nor between the different specimens. The arterial vascularization of the base of the encephalon is presented as a closed circuit, which is dependent on the carotid artery of the encephalon, both the antimeres, and the basilar artery, in all the analyzed specimens. The middle cerebral arteries ranged from one to three vessels, originating from the rostral branch of the cerebral carotid artery. The basilar artery results from the confluence of the vertebral arteries of both the antimeres and the ventral spinal artery. This species tends to fit into type II, of De Vriese's classification2017-11-27O cateto (Pecari tajacu), animal de pequeno porte, onívoro e de hábitos diurnos, vive em grupos de até 20 animais em diversas áreas do Brasil, inclusive no nordeste brasileiro. É de fácil adaptação à criação em cativeiro e se destaca em relação ao gado como fonte alternativa de proteína na alimentação humana, além de outras aplicações comerciais, com menor dano ao meio ambiente, pois necessita de uma menor área para sua criação. Por tratar-se de um animal ainda pouco estudado, este trabalho objetivou realizar a craniometria e a morfometria de seu encéfalo, bem como descrever a morfologia encefálica e sua vascularização arterial, em vista ventral. Foram utilizados 14 animais que vieram a óbito por causas naturais. Estes tiveram ambas suas artérias carótidas canuladas e, em seguida, realizou-se a fixação em formaldeído a 10%. Deste total, dez animais foram injetados com solução de látex, devidamente corado, para evidenciação dos vasos sanguíneos. A pele foi rebatida, bem como a musculatura. Foram realizadas as medidas craniométricas. Posteriormente, os encéfalos foram retirados dos crânios para a sua medição, dissecação e descrição. Fotografias foram realizadas para demonstração das estruturas, bem como, após a coleta, montou-se o banco de dados. Na análise estatística dos dados métricos, foi realizado o Teste t de Student não-pareado e o estudo de correlação de Pearson. Dessa forma, observou-se que existe diferença significativa entre o comprimento total da cabeça dos catetos macho e fêmea, bem como no comprimento da face, largura do crânio, largura da face e comprimento do hemisfério cerebral direito, sempre com maiores valores para o macho. Nas fêmeas, o hemisfério cerebral esquerdo apresenta-se mais largo que o direito. Ficou evidenciada uma correlação positiva entre a variável comprimento total da cabeça e a largura do hemisfério cerebral direito, tanto nos machos como nas fêmeas. A relação peso do encéfalo/peso do corpo dos catetos foi, em média, de 0,42%. É um animal girencéfalo, com neocórtex desenvolvido, embora sem evidência de simetria dos sulcos e giros entre os hemisférios cerebrais direito e esquerdo, ou entre os diferentes espécimes. A vascularização arterial da base do encéfalo apresenta-se na forma de circuito fechado, sendo dependente da artéria carótida do encéfalo, de ambos os antímeros, e da artéria basilar, em todos os espécimes analisados. As artérias cerebrais médias variaram de um a três vasos, tendo origem a partir do ramo rostral da carótida do encéfalo. A artéria basilar resulta da confluência das artérias vertebrais de ambos os antímeros com a artéria espinal ventral. Esta espécie tende a enquadrar-se no tipo II, da classificação de De VrieseBrasilUFERSAPrograma de Pós-Graduação em Ciência AnimalOliveira, Moacir Franco de32594950459http://lattes.cnpq.br/884311323326261991776406320http://lattes.cnpq.br/9973745977066580Moura, Carlos Eduardo Bezerra de03597959431http://lattes.cnpq.br/4717410137206021Menezes, Danilo José Ayres de69816980304http://lattes.cnpq.br/4003577127443065Albuquerque, Ana Cláudia Sales Rocha70176043420http://lattes.cnpq.br/9180501991200434Brito, Ivina Rocha84764465272http://lattes.cnpq.br/6606290244529577Saraiva, Júlio César dos Reis2018-02-20T14:31:00Z2017-07-31info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdfapplication/pdfSARAIVA, Júlio César dos Reis. Macroscópia do encéfalo de catetos (Pecari tajacu, Linnaeus, 1758). 2017. 84 f. Tese (Doutorado em Ciência Animal) - Universidade Federal Rural do Semi-Árido, Mossoró, 2017.https://repositorio.ufersa.edu.br/handle/tede/822porCC-BY-SAinfo:eu-repo/semantics/openAccessreponame:Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU)instname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSA2023-10-30T20:23:46Zoai:repositorio.ufersa.edu.br:tede/822Repositório Institucionalhttps://repositorio.ufersa.edu.br/PUBhttps://repositorio.ufersa.edu.br/server/oai/requestrepositorio@ufersa.edu.br || admrepositorio@ufersa.edu.bropendoar:2023-10-30T20:23:46Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU) - Universidade Federal Rural do Semi-Árido (UFERSA)false |
dc.title.none.fl_str_mv |
Macroscópia do encéfalo de catetos (Pecari tajacu, Linnaeus, 1758) Macroscopy of the encephalon of collared peccaries (Pecari tajacu, Linnaeus, 1758) |
title |
Macroscópia do encéfalo de catetos (Pecari tajacu, Linnaeus, 1758) |
spellingShingle |
Macroscópia do encéfalo de catetos (Pecari tajacu, Linnaeus, 1758) Saraiva, Júlio César dos Reis Neuroanatomia Morfologia Morfometria Vascularização Encéfalo Neuroanatomy Morphology Morphometry Vascularization Encephalon CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA |
title_short |
Macroscópia do encéfalo de catetos (Pecari tajacu, Linnaeus, 1758) |
title_full |
Macroscópia do encéfalo de catetos (Pecari tajacu, Linnaeus, 1758) |
title_fullStr |
Macroscópia do encéfalo de catetos (Pecari tajacu, Linnaeus, 1758) |
title_full_unstemmed |
Macroscópia do encéfalo de catetos (Pecari tajacu, Linnaeus, 1758) |
title_sort |
Macroscópia do encéfalo de catetos (Pecari tajacu, Linnaeus, 1758) |
author |
Saraiva, Júlio César dos Reis |
author_facet |
Saraiva, Júlio César dos Reis |
author_role |
author |
dc.contributor.none.fl_str_mv |
Oliveira, Moacir Franco de 32594950459 http://lattes.cnpq.br/8843113233262619 91776406320 http://lattes.cnpq.br/9973745977066580 Moura, Carlos Eduardo Bezerra de 03597959431 http://lattes.cnpq.br/4717410137206021 Menezes, Danilo José Ayres de 69816980304 http://lattes.cnpq.br/4003577127443065 Albuquerque, Ana Cláudia Sales Rocha 70176043420 http://lattes.cnpq.br/9180501991200434 Brito, Ivina Rocha 84764465272 http://lattes.cnpq.br/6606290244529577 |
dc.contributor.author.fl_str_mv |
Saraiva, Júlio César dos Reis |
dc.subject.por.fl_str_mv |
Neuroanatomia Morfologia Morfometria Vascularização Encéfalo Neuroanatomy Morphology Morphometry Vascularization Encephalon CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA |
topic |
Neuroanatomia Morfologia Morfometria Vascularização Encéfalo Neuroanatomy Morphology Morphometry Vascularization Encephalon CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA |
description |
The collared peccary (Pecari tajacu), a small-sized, omnivorous and diurnal animal, lives in groups of up to 20 animals in several areas of Brazil, the Brazilian northeast included. It is easily adapted to captive breeding and stands out in relation to cattle as an alternative protein source for human consumption, in addition to other commercial applications, posing less damage to the environment. Because there is a scarcity of studies addressing this animal, this work aimed to perform craniometry and morphometry of its cranium, as well as to describe the morphology of the encephalon and its arterial vascularization, in ventral view. We used 14 animals that died of natural causes. These had both their carotid arteries cannulated and fixation in 10% formaldehyde was then performed. From that total, ten animals were injected with latex solution, duly stained, in order to make the blood vessels evident. The skin, as well as the musculature, were rebounded. Craniometric measurements were performed. Subsequently, the encephalons were removed from the crania for measurement, dissection and description. Photographs were taken for demonstration of the structures and, after collection, the database was assembled. In the statistical analysis of the metric data, unpaired Student's t-test and Pearson’s correlation study were conducted. Thus, a significant difference was observed between the male and female collared peccaries, with regard to the Total Head Length, as well as to the face length, the cranium width, face width, and right cerebral hemisphere length, always with higher values for males. In females, the left cerebral hemisphere is wider than the right one. There was a positive correlation between the variable total head length and the right cerebral hemisphere width, in both males and females. The brain-to-body weight ratio of the collared peccaries was, on average, 0.42%. This is a gyrencephalic animal with a developed neocortex, although without evidence of sulci and gyri symmetry between the right and left cerebral hemispheres, nor between the different specimens. The arterial vascularization of the base of the encephalon is presented as a closed circuit, which is dependent on the carotid artery of the encephalon, both the antimeres, and the basilar artery, in all the analyzed specimens. The middle cerebral arteries ranged from one to three vessels, originating from the rostral branch of the cerebral carotid artery. The basilar artery results from the confluence of the vertebral arteries of both the antimeres and the ventral spinal artery. This species tends to fit into type II, of De Vriese's classification |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-07-31 2018-02-20T14:31:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
SARAIVA, Júlio César dos Reis. Macroscópia do encéfalo de catetos (Pecari tajacu, Linnaeus, 1758). 2017. 84 f. Tese (Doutorado em Ciência Animal) - Universidade Federal Rural do Semi-Árido, Mossoró, 2017. https://repositorio.ufersa.edu.br/handle/tede/822 |
identifier_str_mv |
SARAIVA, Júlio César dos Reis. Macroscópia do encéfalo de catetos (Pecari tajacu, Linnaeus, 1758). 2017. 84 f. Tese (Doutorado em Ciência Animal) - Universidade Federal Rural do Semi-Árido, Mossoró, 2017. |
url |
https://repositorio.ufersa.edu.br/handle/tede/822 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
CC-BY-SA info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
CC-BY-SA |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Brasil UFERSA Programa de Pós-Graduação em Ciência Animal |
publisher.none.fl_str_mv |
Brasil UFERSA Programa de Pós-Graduação em Ciência Animal |
dc.source.none.fl_str_mv |
reponame:Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU) instname:Universidade Federal Rural do Semi-Árido (UFERSA) instacron:UFERSA |
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Universidade Federal Rural do Semi-Árido (UFERSA) |
instacron_str |
UFERSA |
institution |
UFERSA |
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Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU) |
collection |
Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU) |
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Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU) - Universidade Federal Rural do Semi-Árido (UFERSA) |
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repositorio@ufersa.edu.br || admrepositorio@ufersa.edu.br |
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1809747483553693696 |