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Effect of selenium supplementation on semen characteristics of Brazil's ram
(2017-06-01)
The aim of this study was to investigate the effects of different concentrations of oral supplementation with selenium (Se) upon ram sperm parameters. Thirty rams managed in stall under intensive system were used and divided ...
Ram semen deterioration by short-term exposure to high altitude is prevented by improvement of antioxidant status
(Cambridge University Press, 2018)
Ovine reproduction efficiency in herds at high altitude (ha) is lower than that at low altitude (la). In ewes, ha effects are due to hypoxia and oxidative stress. Our aim was to establish the effect of antioxidant vitamin ...
Detection of Neospora caninum and Toxoplasma gondii in Semen of Naturally Infected Rams
(Universidade Federal do Rio Grande do Sul, 2019)
Seminal plasma proteins modify the distribution of sperm subpopulations in cryopreserved semen of rams with lesser fertility
(Elsevier Science, 2017-09-27)
Any physiological mechanism involved in sperm selection and semen improvement has effects on heterogeneous sperm populations. This is mainly due to the fact that sperm populations within a single ejaculate have considerable ...
Lipid peroxidation and generation of hydrogen peroxide in frozen-thawed ram semen supplemented with catalase or Trolox
(Elsevier B.V., 2011-02-01)
Semen manipulation and cryopreservation-thaw procedures may accelerate the generation of reactive oxygen species (ROS). Sperm exposure to large amounts of ROS has been shown to cause membrane lipid peroxidation and cellular ...
Lipid peroxidation and generation of hydrogen peroxide in frozen-thawed ram semen supplemented with catalase or Trolox
(Elsevier B.V., 2011-02-01)
Semen manipulation and cryopreservation-thaw procedures may accelerate the generation of reactive oxygen species (ROS). Sperm exposure to large amounts of ROS has been shown to cause membrane lipid peroxidation and cellular ...
Improvement of antioxidant status and semen quality by oral supplementation with vitamins c and e in rams
(Universidad del Zulia Facultad de Ciencias Veterinarias, 2016)
In males, most of the conditions leading to decreased fertility are associated with oxidative stress, where supra-physiological levels of reactive oxygen species exert detrimental effects on spermatogenesis and sperm ...