Comparison of different sperm selection techniques in ram frozen-thawed sperm
1s.afeira Sarmento; Souza-Fabjan, Joanna Maria Gonçalves de; Fonseca, Jeferson Ferreira da; Balaro, Mario Felipe Alvarez; Freitas, Vicente José de Figueirêdo; Oliveira, Rodrigo Vasconcelos de; Fluminense Federal University.
Acta sci. vet. (Impr.);
45: 01-11, 2017. tab, graf
Artigo
em Inglês
| VETINDEX
| ID: biblio-1457569
Resumo
Background: The success of fertilization is directly associated with semen quality and the sperm preparation. Considering the common use of cryopreserved spermatozoa, there is a need to develop strategies for sperm preparation in order to achieve a sperm sample of high quality through a rigorous selection of sperm. Thus, sperm cells are being more extensively investigate. This study aimed evaluating the influence of different sperm selection techniques on ram sperm parameters in semen preparation.Materials, Methods & Results: Frozen-thawed commercial semen from 10 Santa Inês rams was subjected to either: swim-up, Percoll, mini-Percoll, sperm washing by centrifugation or a control group. After each technique, samples were incubated at 37o.C for 1 h, 2 h and 3 h. At post-selection moment (0 h) and at each interval, sperm recovery rate, motility, capacitation and plasma membrane (PM) integrity were analyzed. The lowest (P 0.05). Most part of motility parameters were not affected (P > 0.05) by the technique at 0 h; just swim-up obtained higher (P 0.05) capacitated [...]
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