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| RAMOS,ROSEMAR S. L.; VALE,WILLIAM G.; ASSIS,FÁTIMA L.. |
| A total of 30 animals of the genus Dasyprocta were cytogenetically studied. They belong to the following species: D. prymnolopha (N=20), D. leporina (N=6), D. fuliginosa (N=1) and Dasyprocta sp. (N=3) (Dasyproctidae, Hystricognathi). Cell suspensions were obtained by peripheral blood culture, besides bone marrow and spleen cells, from D. prymnolopha and D. leporina. The diploid number was 64/65 for all samples. The karyotypes showed similarity, and chromosomal polymorphism was not detected by Giemsa conventional staining and G banding. The constitutive heterochromatin distribution at the pericentromeric region of all the chromosomes was similar in all species. D. prymnolopha, D. leporina and Dasyprocta sp. presented variation in the heterochromatical block... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cytogenetics; Hystricognathi; Dasyprocta; Karyotype. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652003000100007 |
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| Mendes-Oliveira,Ana Cristina; de Maria,Susanne L. S; Soares de Lima,Renata Cecília; Fernandes,Alexandre S; de Almeida,Paula C. R; Montag,Luciano F. A; de Carvalho Jr,Oswaldo. |
| Many methods of age determination have been used to date. However, most of them require laboratory procedures which are, in general, not available for wildlife managers in the field. In this paper we attempt to standardize the age categories for six mammal species through the analysis of dental wear, dental eruption and body mass. We analyzed 632 skulls, including Mazama nemorivaga (brown brocket deer), Mazama americana (red brocket deer), Tayassu pecari (white-lipped peccary), Pecari tajacu (collared peccary), Cuniculus paca (paca) and Dasyprocta leporina (agouti). Using biological and morphological criteria we define four age categories: young, sub adult, adult and senescent adult. Scores and variables of molar cusp wear and eruption were defined for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cuniculus; Dasyprocta; Mazama; Pecari; Tayassu. |
| Ano: 2012 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832012000100009 |
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