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Master's Dissertation
DOI
10.11606/D.10.2004.tde-14072005-163825
Document
Author
Full name
Mariana Matera Veras
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2004
Supervisor
Committee
Miglino, Maria Angélica (President)
Blazquez, Francisco Javier Hernandez
Caldini, Elia Tamaso Espin Garcia
Title in Portuguese
Aspectos morfológicos do aparelho reprodutor em bugios (Alouatta guariba clamitans e Alouatta caraya): o modelo feminino
Keywords in Portuguese
Anatomia animal
Morfologia
Primatas
Abstract in Portuguese
O Brasil tem cerca de 133 espécie s e subespécie de primatas, das quais cerca de 35% são endêmicas. A ocupação e destruição cada vez maior dos ambientes naturais somadas a caça e o comércio ilegal de animais silvestres deixou algumas espécies de primatas seriamente ameaçadas de extinção. O presente estudo trata da morfologia do aparelho reprodutor de fêmeas de bugio (Alouatta caraya e Alouatta guariba clamitans), cujos resultados podem subsidiar pesquisas de reprodução visando sua conservação. Dez aparelhos reprodutores foram estudados macro e microscopicamente pelas técnicas de microscopia de luz e microscopia eletrônica de varredura. As idades das fêmeas foram estimadas utilizando-se uma chave dental. Os resultados mostraram que a vulva em Alouatta assemelha-se a genitália externa dos machos. O útero é simples e piriforme, caracterizado por uma cérvix longa. A musculatura cervical mostra-se bem desenvolvida e a musculatura uterina está organizada de uma maneira peculiar. O epitélio vaginal não mostrou sofrer alterações cíclicas. A característica mais significativa foi a presença de grandes quantidades de tecido intersticial glandular nos compactos ovários. De uma maneira geral a morfologia do aparelho reprodutor das fêmeas de bugio mostram similaridades com outras espécies de Platyrrhinii e poucas diferenças interespecíficas (Alouatta caraya-Alouatta gurariba clamitans).
Title in English
Morphological aspects of the reproductive tract of howler monkey (Alouatta guariba clamitans and Alouatta caraya): the female model
Keywords in English
Animal anatomy
Morphology
Primates
Abstract in English
Brazil has about 133 primate?s species and subespecies among which 35% are endemic. The land occupation, the natural environments destruction, hunting and the illegal commerce of wild animals left some species seriously threatened of extinction. The present study deals with the morphology of the reproductive tract of howler monkeys (Alouatta guariba clamitans and Alouatta caraya), wich data can subdize further reproduction researches, aiming its conservation. Ten female reproductive tract were studied microscopically and macroscopically. The age of the animals was estimated using a dental-age key, most of them were sexually mature. Representative fragments of the uterus, ovary, uterine tube and vagina were cut and prepared for histology and scanning electron microscopy. Our data showed that the Alouatta female vulva resembles the external genitalia of the male. The uterus are pyriform and caracterized by a long cervix. The muscular layer of the cervix was well developed and the musculature of the body of the uterus showed a particular organization. The vaginal epitheliium showd no ciclic alterations. The most significant feature found seems to be the presence of abundant glandular interstitial tissue in the compact ovaries. The female reproductive tract morphology of the howler monkey showed similarities with other Platyrrhini and few interespecific (Alouatta guariba clamitans ?Alouatta caraya) differences.
 
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Publishing Date
2007-05-14
 
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