Efecto de la congelación sobre la funcionalidad de espermatozoides porcinos y ovinos
This study was designed to evaluate the effects of freezing sperm in pigs and sheep obtained from different commercial farms, which were frozen with cryoprotectants and then were thawed. The parameters of viability, motility and acrosome integrity were evaluated before and after freezing in both spe...
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| Formato: | tesis de maestría |
| Estado: | Versión publicada |
| Fecha de publicación: | 2015 |
| País: | México |
| Recursos: | Universidad Autónoma Metropolitana |
| Repositorio: | Repositorio Institucional de la UAM Iztapalapa |
| Idioma: | español |
| OAI Identifier: | oai:bindani.izt.uam.mx:41687h57c |
| Acesso em linha: | https://doi.org/10.24275/uami.41687h57c |
| Access Level: | acceso abierto |
| Palavra-chave: | info:eu-repo/classification/LEM/Ganadería ovina info:eu-repo/classification/LEM/Criopreservación de órganos info:eu-repo/classification/LEM/Cerdos info:eu-repo/classification/LEM/Reproducción animal info:eu-repo/classification/LEM/Reproduction info:eu-repo/classification/LEM/Tecnología reproductiva info:eu-repo/classification/LEM/Espermatozoides info:eu-repo/classification/LEM/Spermatozoa info:eu-repo/classification/LEM/Cryopreservation of organs, tissues, etc. info:eu-repo/classification/LEM/Reproductive technology info:eu-repo/classification/LEM/Swine -- Reproduction info:eu-repo/classification/LEM/Sheep farming -- Reproduction info:eu-repo/classification/cti/6 |
| Resumo: | This study was designed to evaluate the effects of freezing sperm in pigs and sheep obtained from different commercial farms, which were frozen with cryoprotectants and then were thawed. The parameters of viability, motility and acrosome integrity were evaluated before and after freezing in both species, where the percentages obtained in the control group in swine sperm were 80% viability, 79% motility, and 68% acrosome integrity, while the percentages obtained from frozen sperm were 31% viability, 27% motility and 38% of acrosome integrity, with significant differences compared to the control group, while the percentages obtained in sheep in the control group They were 87%, 89% and 56% for the parameters of viability, motility and acrosome integrity, respectively, on the other hand in frozen species sperm percentages obtained were 54% viability, 52% motility and 36% of acrosome integrity, with significant differences between groups. Therefore in this study we observed that sheep are more resistant to freezing regarding swine, getting a higher percentage in the three parameters evaluated before and after freezing. |
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