2015
DOI: 10.1590/1089-68916i124607
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Centrifugação De Espermatozoides Ovinos Em Gradiente De Densidade Contínuo: Efeito Sobre a Taxa De Prenhez E Proporção Do Sexo

Abstract: Resumo:Este trabalho teve como objetivo avaliar a eficiência de gradientes de densidade contínuos de Percoll e OptiPrep para a separação de espermatozoides portadores do cromossomo X, e avaliar a influência sobre a viabilidade espermática, taxa de prenhez e proporção do sexo. Para isso, 100 milhões de espermatozoides foram depositados em cada tubo contendo o gradiente de densidade, previamente preparados, em tubos de poliestireno, 24 horas antes da centrifugação e mantidos a 4 °C. Centrifugou-se a 500 x g por … Show more

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“…Depending upon the differences in the sedimentation density, high sedimentation density of X spermatozoa than Y spermatozoa enables settling of X sperm in the QUANTIFICATION OF X SPERM BY RAMAN SPECTROSCOPY IN PERCOLL DENSITY GRADIENT CENTRIFUGED BUFFALO SEMEN bottom portion of column and Y spermatozoa remains at the top of column. Percoll density gradient centrifugation could enrich the X-bearing viable sperm up to 70%, at lower cost (Hossepian de Lima, 2007; without damaging the sperm membrane (Oliveira et al, 2011; and acrosome (Resende et al, 2010, Chaudhary et al, 2022 compared to flowcytometric separation of X and Y sperms . Percoll gradient centrifuged enrichment of X sperm in association with in-vitro production of embryo resulted in more female calves birth (72.3%) compared to the male (48.2%).…”
Section: Introductionmentioning
confidence: 99%
“…Depending upon the differences in the sedimentation density, high sedimentation density of X spermatozoa than Y spermatozoa enables settling of X sperm in the QUANTIFICATION OF X SPERM BY RAMAN SPECTROSCOPY IN PERCOLL DENSITY GRADIENT CENTRIFUGED BUFFALO SEMEN bottom portion of column and Y spermatozoa remains at the top of column. Percoll density gradient centrifugation could enrich the X-bearing viable sperm up to 70%, at lower cost (Hossepian de Lima, 2007; without damaging the sperm membrane (Oliveira et al, 2011; and acrosome (Resende et al, 2010, Chaudhary et al, 2022 compared to flowcytometric separation of X and Y sperms . Percoll gradient centrifuged enrichment of X sperm in association with in-vitro production of embryo resulted in more female calves birth (72.3%) compared to the male (48.2%).…”
Section: Introductionmentioning
confidence: 99%