Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Giovanni Restrepo"'
Autor:
Alexandra Usuga, Benjamín Alberto Rojano, Juan Camilo Duque, Carolina Mesa, Oliver Restrepo, Luis Miguel Gomez, Giovanni Restrepo
Publikováno v:
Veterinary Medicine and Science, Vol 9, Iss 2, Pp 687-697 (2023)
Abstract Background Including adequate concentrations of antioxidants in dog diets has been recommended to reduce their vulnerability to the action of free radicals and reactive oxygen species (ROS). Oxidative stress in dogs has been associated with
Externí odkaz:
https://doaj.org/article/8ec360a049414e628dbf8c51146fa138
Autor:
Giovanni Restrepo Betancur, Kelly Vanessa Zapata, Paola Andrea Colorado Vidal, Yudith Sánchez, Benjamín Alberto Rojano
Publikováno v:
Ciência Rural, Vol 53, Iss 11 (2023)
ABSTRACT: Spermatozoa experience oxidative, osmotic, chemical, and thermal stresses when cooled, which degrade the quality and fertilizing capacity of the cells. Adding antioxidants to the sperm extender mitigates these alterations. This study evalua
Externí odkaz:
https://doaj.org/article/1ade886391de4631ad5cd7a096ad1f52
Publikováno v:
Ciência Rural, Vol 53, Iss 3 (2022)
ABSTRACT: High consanguinity among equines has negative effects on semen quality, thus resulting in low motility and high levels of abnormality in the spermatozoa. However, such a relationship has not been studied in Colombian Creole horses, which ha
Externí odkaz:
https://doaj.org/article/e147b32b7fc54e9ab4c12839137b140b
Influence of thawing temperature on sperm motility, structure, and metabolism of frozen bovine semen
Publikováno v:
Ciência Rural, Vol 53, Iss 3 (2022)
ABSTRACT: The heating rate used during semen thawing plays an important role in reducing structural and functional damage to spermatozoa. In this study, we evaluated the influence of thawing temperature on semen quality, reactive oxygen species (ROS)
Externí odkaz:
https://doaj.org/article/d68c4c8b1f874099a0f5f38dd3e8296f
Autor:
Elizabeth Varela-Giraldo, Alexandra Úsuga-Suárez, Juan E. Duque-Cortés, Jorge Gómez-Oquendo, Giovanni Restrepo-Betancur
Publikováno v:
Revista Colombiana de Ciencias Pecuarias, Vol 34, Iss 3, Pp 200-211 (2020)
Background: In artificial insemination, chicken egg yolk is added to bovine semen to protect it during the cryopreservation process, although it contains substances that can affect the microbiological quality and metabolism of sperm. Objective: To ev
Externí odkaz:
https://doaj.org/article/cc3d4baca58c4afab5a886d0e09c20d2
Publikováno v:
Indian Journal of Animal Sciences, Vol 90, Iss 2 (2020)
The aim of this study was to evaluate the effect of lyophilized seminal plasma (LSP) on stallion semen freezability. Seminal plasma from 30 stallions was lyophilized to obtain a pool of LSP. Fifteen ejaculates from five stallions were supplemented be
Externí odkaz:
https://doaj.org/article/e8c9b9399b1047f7ad678e5fabd39a3c
Autor:
Alexandra Usuga, Irene Tejera, Jorge Gómez, Oliver Restrepo, Benjamín Rojano, Giovanni Restrepo
Publikováno v:
Animals, Vol 11, Iss 10, p 2757 (2021)
Sperm undergo oxidative stress due to excessive production of reactive oxygen species (ROS) during cryopreservation. Some unconventional natural antioxidants can reduce ROS-induced changes in cryopreserved canine sperm. This study aimed to identify t
Externí odkaz:
https://doaj.org/article/b186381df92f40638a521b3d559c7091
Publikováno v:
Revista Mexicana de Ciencias Pecuarias, Vol 8, Iss 3, Pp 233-242 (2017)
El objetivo fue evaluar la suplementación con plasma seminal y la relación existente entre algunos de sus componentes, con la calidad del semen congelado-descongelado de asnos (Equus asinus). El semen de cinco asnos criollos colombianos se colectó
Externí odkaz:
https://doaj.org/article/524f0c62fa4e4938aa78d21ce19b02c9
Publikováno v:
Revista U.D.C.A Actualidad & Divulgación Científica, Vol 16, Iss 2, Pp 445-450 (2013)
La reproducción juega un papel fundamental en el mejoramiento genético de los equinos. La criopreservación del semen equino es una técnica complementaria a los procesos de biotecnología reproductiva; sin embargo, solamente el 40% de los caballos
Externí odkaz:
https://doaj.org/article/f261e22a08824b8592d94eb0c5973e3a
Publikováno v:
Revista MVZ Cordoba, Vol 18, Iss Suplemento, Pp 3672-3680 (2013)
Objetivo. Determinar el efecto del plasma seminal sobre la generación de especies reactivas de oxígeno (ERO) y la peroxidación lipídica de semen equino criopreservado y su asociación con parámetros de calidad seminal. Materiales y métodos. El
Externí odkaz:
https://doaj.org/article/2881db57ef964830a4e647207063a11f