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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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Author(s):
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]
Total Authors: 8
Affiliation:
[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
Total Affiliations: 2
Document type: Journal article
Source: REPRODUCTION IN DOMESTIC ANIMALS; v. 46, n. 4, p. 682-686, AUG 2011.
Web of Science Citations: 19
Abstract

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)