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Chaves, E. P., Oliveira, S. C. R., Araújo, L. P. F., Oliveira, A. S., Miglino, M. A., & Abreu-Silva, A. L., et al. (2012). Morphological aspects of the ovaries of turtle kinosternon scorpioides raised in captivity. Pesquisa Veterinária Brasileira, 32(7), 667–671. 
Added by: Sarina Wunderlich (18 Nov 2012 17:43:14 UTC)
Resource type: Journal Article
BibTeX citation key: Chaves2012
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Categories: General
Keywords: Fortpflanzung = reproduction, Kinosternidae, Kinosternon, Kinosternon scorpioides, Morphologie = morphology, Physiologie = physiology, Schildkröten = turtles + tortoises
Creators: Abreu-Silva, Araújo, Chaves, Melo, Miglino, Oliveira, Oliveira, Sousa
Collection: Pesquisa Veterinária Brasileira
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The swear turtle “jurará” (Kinosternon scorpioides) is a mud turtle of the Amazon region exposed to disordering capture in the rural areas of Maranhão, Brazil. Despite its popularity in these areas, little meaningful information regarding the reproductive morphology is currently available, fact that impedes the adoption of policies for preservation of the species. To obtain more information, we studied the ovarian morphology adult jurará females kept in captivity by morphological and morphometric analysis in the dry and rainy season. The results revealed that all females were sexually mature and were in a vitellogenic period. The ovaries are two irregular structures composed by follicles in different stages of development (primary, secondary and tertiary) scattered in a stroma of loose connective highly vascularized tissue. The ovary weight was 6.25±4.23g and 2.27±1.42g, for the right and left one respectively. The gonadosomatic indexes were 2.06% for the dry season and 1.79% for the rainy season. The average of the follicles was 29.83 units per ovary. Microscopically, the mature ovaries revealed a basal layer composed by four cellular layers: the inner and outer theca, stratum granulosum with perivitelline membrane and zona radiata with vitelline membrane. No significant differences were observed in the ovaries either in the dry or wet period.
Added by: Sarina Wunderlich  
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