Addition of Seminal Plasma to Post-thawing Equine Semen: What is the Effect on Sperm Cell Viability?

Autor(es)

de Andrade, A. F. C. ^[1] ; Zaffalon, F. G. ^[1] ; Celeghini, E. C. C. ^[1] ; Nascimento, J. ^[1] ; Tarrago, O. F. B. ^[1] ; Martins, S. M. M. K. ^{[1, 2]} ; Alonso, M. A. ^[1] ; Arruda, R. P. ^[1]

Afiliação do(s) autor(es)

^[1] USP, Fac Med Vet & Zootecn, Dept Anim Reprod, Sch Vet Med & Anim Sci, Lab Semen Biotechnol & And, BR-13635900 Pirassununga, SP - Brazil

^[2] USP, Lab Swine Res, Dept Anim Nutr & Prod, Sch Vet Med & Anim Sci, BR-13635900 Pirassununga, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: REPRODUCTION IN DOMESTIC ANIMALS; v. 46, n. 4, p. 682-686, AUG 2011.
• Citações Web of Science: 19

Resumo

Effect of seminal plasma addition after thawing on viability or cryocapacitation is not definitively established. This experiment was performed to verify the effect of adding seminal plasma, autologous or homologous (from an animal with good semen freezability). Five ejaculates from each of four stallions with proven fertility were collected and cryopreserved. The semen was subsequently thawed and divided into the following three treatment groups: no seminal plasma addition after semen thawing (NOSP); the addition of homologous seminal plasma after semen thawing (HSP) and the addition of autologous seminal plasma after semen thawing (ASP). The addition of 20% of seminal plasma led to an increase in the cell population that simultaneously show plasma and acrosomal membrane integrity (p < 0.05). The addition of seminal plasma did not alter the total motility, the amount of cells with mitochondrial membrane potential or the sperm velocities (average path velocity, straight-line velocity and curvilinear velocity). However, the beat/cross-frequency, straightness and linearity were reduced in ASP and HSP groups (p < 0.05). Unexpectedly, the addition of homologous seminal plasma reduced the proportion of cells with progressive motility (p < 0.05) and the addition of autologous seminal plasma reduced the amplitude of the lateral head displacement (p < 0.05). Based on the increase in the cell populations that had the plasma and acrosomal membrane integrity simultaneously identified in this study, we proposed that the addition of seminal plasma (autologous or homologous) into post-thawed semen before insemination could increase semen fertility. (AU)

• Processo FAPESP: 04/09028-6 - Estruturação de parque de equipamentos de ciências celulares e moleculares no campo de Pirassununga
• Beneficiário: Flávio Vieira Meirelles
• Modalidade de apoio: Auxílio à Pesquisa - Programa Equipamentos Multiusuários
• Processo FAPESP: 06/60966-2 - Adição do plasma seminal na redução da criocapacitação e da peroxidação lipídica em espermatozóides de equinos
• Beneficiário: André Furugen Cesar de Andrade
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto
• Processo FAPESP: 04/11463-2 - Adicao do plasma seminal na reversao da criocapacitacao e reducao da geracao de especies reativas de oxigenio (ros) em espermatozoides equinos.
• Beneficiário: André Furugen Cesar de Andrade
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 05/60591-6 - Adicao do plasma seminal na reducao da criocapacitacao e da peroxidacao lipidica em espermatozoides de equinos.
• Beneficiário: Rubens Paes de Arruda
• Modalidade de apoio: Auxílio à Pesquisa - Regular