Effects of pyridoxine in combination with different antioxidants on viability and oxidative stress parameters of cryopreserved goat buck semen

Abstract

The effects of pyridoxine alone or combined with different antioxidants on viability and oxidative stress parameters of cryopreserved sperm of goat bucks were studied. Pooled semen samples diluted with tris-egg yolk extenders were supplemented in the Study I: with 0, 2, 4, 6 and 8 mM of pyridoxine; in the study II with 2 mM of pyridoxine (P) each combined with different concentrations (0, 2, 4, 6 and 8 mM) of vitamin E (PE), vitamin C (PC) and melatonin (PM); and in study III: with 2 mM of pyridoxine each supplemented with different combinations of vitamin C, vitamin E and melatonin (PCEM) each at different concentrations (0, 2, 4, 6 and 8 mM). The results showed higher (pSe estudiaron los efectos de la piridoxina sola, o en combinación con diferentes antioxidantes, sobre los parámetros de viabilidad y estrés oxidativo de los espermatozoides caprinos criopreservados. Muestras combinadas de semen, diluidas con diluyente yema de huevo-tris se complementaron, en el estudio I con 0, 2, 4, 6 y 8 mM de piridoxina; en el estudio II con 2 mM de piridoxina (P), en combinación con diferentes concentraciones (0, 2, 4, 6 y 8 mM) de vitamina E (PE), vitamina C (PC) o melatonina (PM); y en el estudio III con 2 mM de piridoxina suplementada con combinaciones de vitamina C, vitamina E y melatonina (PCEM) a diferentes concentraciones (0, 2, 4, 6 y 8 mM). Los resultados mostraron mayor (

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