2003
DOI: 10.1590/s1413-95962003000900003
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Quantificação de células dos túbulos seminíferos e rendimento da espermatogênese em cutias (Dasyprocta aguti) criadas em cativeiros

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Cited by 15 publications
(10 citation statements)
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“…At the age of 150 days, it was observed that each type A spermatogonia produced only 35.82 round spermatids. This rate was similar to what was found in adult boars (Costa and Silva 2006), but below the rate described for domestic pigs (França and Russell 1998), Piau pigs (França 1991) and sheared sheep (Martins et al 2008), and higher than the rates found for adult peccaries (Costa et al 2004) and agoutis (Assis- Neto et al 2003e).…”
Section: Spermatogenetic Yield and Sertoli Indexsupporting
confidence: 78%
“…At the age of 150 days, it was observed that each type A spermatogonia produced only 35.82 round spermatids. This rate was similar to what was found in adult boars (Costa and Silva 2006), but below the rate described for domestic pigs (França and Russell 1998), Piau pigs (França 1991) and sheared sheep (Martins et al 2008), and higher than the rates found for adult peccaries (Costa et al 2004) and agoutis (Assis- Neto et al 2003e).…”
Section: Spermatogenetic Yield and Sertoli Indexsupporting
confidence: 78%
“…At the age of 150 days, it was observed that each type A spermatogonia produced only 35.82 round spermatids. This rate was similar to what was found in adult boars , but below the rate described for domestic pigs , Piau pigs ) and sheared sheep (Martins et al 2008), and higher than the rates found for adult peccaries ) and agoutis (Assis-Neto et al 2003e).…”
Section: Spermatogenetic Yield and Sertoli Indexsupporting
confidence: 84%
“…Em cobaios a parada da proliferação das células de Sertoli (na semana 5 de idade) e o estabelecimento da puberdade (na semana 6 de idade) ocorreram mais precocemente do que em chinchila (2 meses e 3 meses, respectivamente, Leal & França 2008). O discreto aumento observado na pós-puberdade 2 também foi descrito em cutias (Assis-Neto et al 2003a) e opôs-se a caititus cujos valores foram decrescentes da fase impúbere até a pós-puberdade 2 (Cardoso 2009). Em outros roedores (Almeida et al 2000, Assis-Neto et al 2003, Costa et al 2004, Cardoso 2009 os valores médios das células de Sertoli foram superiores aos obtidos por cobaios.…”
Section: Discussionunclassified
“…Assim, a eficiência do processo espermatogênico está dividida em rendimento mitótico, rendimento meiótico e rendimento geral. O rendimento mitótico, que representa o número de espermatócitos I em pré-leptóteno/leptóteno derivados de cada espermatogônia do tipo A, se mostrou crescente da pré-puberdade tardia até a pós-puberdade 1, opondo-se ao observado em cutias (Assis-Neto et al 2003a). Em cobaios o rendimento mitótico foi menor que o de pacas (Carretta Júnior 2008), catetos (Costa et al 2004) e ratos Wistar (Takashiba et al 2001), e similar na puberdade e superior na pós-puberdade ao de cutias (Assis-Neto et al 2003).…”
Section: Discussionunclassified
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