Development of spermatogenesis in captive-bred Spix's yellow-toothed cavy (Galea spixii)

Autor(es)

Santos, P. R. S. ^[1] ; Oliveira, M. F. ^[2] ; Silva, A. R. ^[2] ; Assis Neto, A. C. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Surg, Fac Vet Med & Anim Sci, BR-05508270 Sao Paulo - Brazil

^[2] Fed Rural Univ Semiarid NE Reg UFERSA, Dept Anim Sci, BR-59625900 Mossoro - Brazil

• Tipo de documento: Artigo Científico
• Fonte: REPRODUCTION FERTILITY AND DEVELOPMENT; v. 24, n. 6, p. 877-885, 2012.
• Citações Web of Science: 10

Resumo

The aim of this study was to evaluate the phases of sexual development and spermatogenesis of Spix's yellow-toothed cavy (Galea spixii) based on analyses of the structural components of the testes. The testes of animals from 0 to 150 days of age were collected by orchiectomy, weighed, and processed for analysis by light microscopy. At 45 days of age, spermatozoa were seen in the tubular lumen. Spermatogenesis was not established in animals from 45 to 150 days of age. The stages of sexual development may be classified into the following phases: from birth to the age of 15 days (immature); 30 days of age (prepubertal); 45-105 days of age (pubertal); and 120 and 150 days of age (postpubertal). This is the first study to address the male reproductive biology of Spix's yellow-toothed cavy. (AU)

• Processo FAPESP: 08/57190-8 - Caracterizacao histologica dos orgaos reprodutivos e suas correlacoes com o desenvolvimento da espermatogenese em prea (galea spixii; wagler, 1831) criadas em cativeiros
• Beneficiário: Paulo Ramos da Silva Santos
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
• Processo FAPESP: 10/14516-0 - Estudo ultraestrutural do desenvolvimento da espermatogênese e da via espermática em preá (Galea spixii; Wagler, 1831) criados em cativeiros
• Beneficiário: Paulo Ramos da Silva Santos
• Modalidade de apoio: Bolsas no Brasil - Mestrado