2008
DOI: 10.1590/s0103-84782008000700034
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Métodos de extrusão manual e elétrica dos espermatóforos de reprodutores selvagens do camarão-rosa Farfantepenaeus paulensis (Decapoda: Penaeidae)

Abstract: O presente estudo comparou os métodos manual e elétrico de extrusão do espermatóforo do camarão-rosa Farfantepenaeus paulensis com o objetivo de verificar se os métodos de extrusão exercem influência na quantidade de células espermáticas e na regeneração de novos espermatóforos. Os machos foram extrusados no início (dia zero) e no final do experimento (dia 43) para verificação da eficiência dos métodos no processo de regeneração. A extrusão manual foi realizada por meio de pressão na região do quinto par de pe… Show more

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Cited by 13 publications
(3 citation statements)
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References 18 publications
(22 reference statements)
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“…Simultaneously, eight males (22.75 ± 4.11 g) in the intermolt stage were selected from among the population of broodstocks. Their spermatophores were manually extruded via compression of the coxae of the fifth pereiopod pair (Nakayama et al, 2008). Spermatophores collected from both the terminal ampoule and thelycum were fixed in 1:1:1 6% glutaraldehyde, 6% paraformaldehyde, and 0.1 M sodium cacodylate solution (pH 7.2).…”
Section: Animals and Biological Materials Samplingmentioning
confidence: 99%
“…Simultaneously, eight males (22.75 ± 4.11 g) in the intermolt stage were selected from among the population of broodstocks. Their spermatophores were manually extruded via compression of the coxae of the fifth pereiopod pair (Nakayama et al, 2008). Spermatophores collected from both the terminal ampoule and thelycum were fixed in 1:1:1 6% glutaraldehyde, 6% paraformaldehyde, and 0.1 M sodium cacodylate solution (pH 7.2).…”
Section: Animals and Biological Materials Samplingmentioning
confidence: 99%
“…1997, 1998; Peixoto et al. 2003a,b, 2004a,b; Nakayama et al. 2008a,b) with the aim of improving reproduction in captivity.…”
Section: Introductionmentioning
confidence: 99%
“…This technique was first used in M. rosenbergii (see Harris and Sandifer, 1986), however, the use of electrostimulation may be a limiting factor for subsequent sperm extractions (Baskar et al, 2004), since there is evidence that it causes melanization of reproductive tissue (Harris and Sandifer, 1986). Melanization of reproductive tissue can cause a decrease in the number of sperm cells in new spermatophores (Rosas et al, 1993;Nakayama et al, 2008).…”
Section: Sperm Viability Of Macrobrachium Tenellummentioning
confidence: 99%