Bradypus Variegatus Sloth
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Identification of the tributary branches of the hepatic portal vein in the common sloth, Bradypus variegatus Schinz, 1825 (Pilosa: Bradypodidae)
RESUMO Bradypus variegatus, a preguiça-comum, pertence à família Bradypodidae, sendo considerada um modelo biológico a ser aplicado em pesquisas multidisciplinares. Este estudo foi desenvolvido a fim de ser aplicado à clínica médica e ao manejo adequado da preguiça-comum. Foram utilizadas 10 preguiças, obtidas após morte natural. Os animais foram f
Arquivo Brasileiro de Medicina Veterinária e Zootecnia. Publicado em: 2022
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2. Mammalian chromosome evolution: comparative studies by chromosome painting on two sloth species of Bradypodidae family and two marsupial species / Evolução cromossômica em mamíferos: estudos comparativos por pintura cromossômica em duas espécies de preguiças da família Bradypodidae e em duas espécies de marsupiais da família Didelphidae
In an attempt to shed additional light on mammalian karyotype evolution, we studied, by chromosome painting, the chromosomes of species from two mammalian basal groups, sloths and marsupials. We compared human chromosomes with the chromosomes of two species of three-toed sloths, Bradypus torquatus and Bradypus variegatus, establishing homologies. Analyzing t
Publicado em: 2009
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3. Ritmo biolÃgico da temperatura corporal em preguiÃas (Bradypus variegatus)
Sloths are heterothermal mammals showing a mean Body Temperature (BT) of around 33ÂC, and behavioral responses possibly related with the light-dark cycle (LD) and ambient temperature. Reports on studies regarding BT rhythmicity during the 24h period are inconclusive. The aim of the present study was to characterize the biological rhythm of BT in Bradypus va
Publicado em: 2007
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4. A simple protocol for the extraction and sequence analysis of DNA from study skin of museum collections
Museum collections have been widely used as sources of biological samples for molecular biology studies and there are several methodologies and techniques to obtain and analyze DNA from tissues archived in museums, but most of these protocols have been developed for a specific tissue or are commercial kits. We present a simple protocol for extracting and amp
Genetics and Molecular Biology. Publicado em: 2007
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5. ContribuiÃÃes ao estudo do eletrocardiograma e da pressÃo arterial em preguiÃas, Bradypus variegatus
Os objetivos deste trabalho foram caracterizar o eletrocardiograma (ECG) e estabelecer o ritmo endÃgeno da pressÃo arterial (PA) em livre-curso, correlacionando-o à ocorrÃncia de comportamentos, em preguiÃas, Bradypus variegatus. Para a caracterizaÃÃo do ECG foram estudados 16 animais (12m e 4f), cedidos pelo IBAMA, os quais foram previamente aclimati
Publicado em: 2007
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6. Fecal estradiol and progesterone metabolite levels in the three-toed sloth (Bradypus variegatus)
The present study was carried out to assess the possibility of measuring fecal steroid hormone metabolites as a noninvasive technique for monitoring reproductive function in the three-toed sloth, Bradypus variegatus. Levels of the estradiol (E2) and progesterone (P4) metabolites were measured by radioimmunoassay in fecal samples collected over 12 weeks from
Brazilian Journal of Medical and Biological Research. Publicado em: 2006-02
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7. Métodos emergentes de física-estatística aplicados a séries temporais
The main objective of the present work was to apply recently developed in methods in physics-statistics to the time series, especifically in this work, to intervals of heart beats obtained from blood pressure signs (BP) of the sloth (Bradypus variegatus), with the purpose of identifying differences in fractality terms in the system of autonomous control rela
Publicado em: 2006
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8. Perfil hematimÃtrico e identificaÃÃo da hemoglobina do bicho preguiÃa Bradypus variegatus
The objective of the present study was to carry out hematimetric profile and identify the types of hemoglobin (Hb) present in the blood of the sloth, Bradypus variegatus, evaluating the influence of sex over these parameters. The present study was carried out in ten sloths (6 male and 4 female), unanaesthetized, kept in a restricted area, weighting (XÂSD) 3
Publicado em: 2006
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9. Estudo da distribuiÃÃo temporal dos comportamentos em preguiÃas Bradypus variegatus, Wetzel, 1982
Os ritmos biolÃgicos estÃo presentes em todos os organismos vivos. O seu controle endÃgeno à feito por marcapassos, tambÃm chamados de osciladores. Os ritmos endÃgenos estÃo harmonizados, exogenamente, com inÃmeras variÃveis ambientais e geofÃsicas. A principal e mais expressiva delas à o ciclo dia/noite, claro/escuro (CE). O perÃodo endÃgeno de
Publicado em: 2006
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10. Electrocardiographic studies of the three-toed sloth, Bradypus variegatus
Electrocardiograms (ECG) obtained with standard limb leads and augmented unipolar limb leads were recorded from 17 unanesthetized adult sloths. The animals were held in their habitual position in an experimental chair. We determined heart rate and rhythm from the R-R intervals, the amplitude and duration of each wave, and the duration of the segments and int
Brazilian Journal of Medical and Biological Research. Publicado em: 2005-12
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11. Colheita e avaliação do sêmen do bicho-preguiça (Bradypus sp.) / Sêmen collection and avaliation of the sloth (Bradypus sp.)
Os bichos-preguiça são animais extremamente sensíveis e sofrem com a destruição e a fragmentação das matas. Apresentam baixa taxa de crescimento populacional e necessitam serem mais estudados para que se possa pensar na preservação da espécie. Este estudo teve como objetivo captar informações sobre o sêmen deste animal. Para tanto 18 machos fora
Publicado em: 2005
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12. Determinação de metabólitos esteroidais para estudo da função ovariana no bicho preguiça (Bradypus variegatus)
The aim of this study was to investigate in sloths (Bradypus variegatus), the circulating levels of estradiol (E2) and progesterone (P4) by monitoring the fecal metabolites of these steroids to obtain information on the estrous cycle and ovarian function. Four apparently healthy female sloths, supplied by IBAMA (Brazilian Environmental Agency) were studied.
Publicado em: 2004