Melatonin and its implications for bovine semen cryopreservation - T. C. Castelo Branco, Yndyra Nayan;de Araújo Castelo Branco, Marlon
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Melatonin is an indolamine derived from the amino acid tryptophan, produced in the pineal gland and characterized by its ability to sequester reactive oxygen species (ROS). The aim of this study was to evaluate the effect of melatonin supplementation to Tris-Gema diluent on the cryopreservation of bovine semen. Fifty-four ejaculates from Guzerá bulls were used. The semen was diluted in TRIS-gema, with the addition of melatonin, at the following experimental concentrations: control group - 0miM; Melatonin - 10miM; Melatonin - 100miM; Melatonin - 200miM. They were then filled into 0.25mL straws…mehr

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Produktbeschreibung
Melatonin is an indolamine derived from the amino acid tryptophan, produced in the pineal gland and characterized by its ability to sequester reactive oxygen species (ROS). The aim of this study was to evaluate the effect of melatonin supplementation to Tris-Gema diluent on the cryopreservation of bovine semen. Fifty-four ejaculates from Guzerá bulls were used. The semen was diluted in TRIS-gema, with the addition of melatonin, at the following experimental concentrations: control group - 0miM; Melatonin - 10miM; Melatonin - 100miM; Melatonin - 200miM. They were then filled into 0.25mL straws and cryopreserved. After thawing at 37°C for 30 seconds, the aliquots were analyzed for the Rapid Thermal Resistance Test (RTT), plasma membrane (PM) integrity, acrosome (Ac), mitochondrial membrane potential (MMP) and sperm kinetics. The percentages of motility were higher (p<0.05) in the control (27.21 + 15.93) and 10µM (23.07 + 15.24) groups. The diluents in the control (75.31 + 28.86) and 10µM (75.26 + 26.44) groups did not differ in terms of MP integrity.
Autorenporträt
Graduada en Medicina Veterinaria por la Universidad Federal de Piauí, Campus Ministro Petrônio Portela en 2011. Fue estudiante de iniciación científica en el área de reproducción animal. Trabajando en temas como: maduración de ovocitos, punción folicular, cosecha de ovocitos. Actualmente cursa maestría en Ciencia Animal en la Universidad Federal de Piauí.