Abstract
This study was designed to determine the semen quality and seminal plasma biochemical parameters in White Leghorn layer breeders in the early phase of maturity. Individual ejaculates from 25 males were analysed for the determination of volume, sperm concentration, dead sperm percentage (DS) and sperm motility. Seminal plasma was separated and analysed for total oxidant status (TOS), total antioxidant capacity (TAC), paraoxonase (PON1), arylesterase, ceruloplasmin, triiodothyronine, thyroxine, aspartate aminotransferase (AST) and alanine aminotransferase (ALT). Our findings showed a significant (p < 0.05) positive correlation between TOS and DS in layer breeders. The values of TAC were significantly negatively correlated with TOS and DS, while positively correlated with PON1. Conversely, AST showed significant negative correlation with motility and DS. Significantly, negative correlation was also observed between ALT and sperm concentration. In conclusion, these parameters provide some valuable basal data that may help better understanding the semen quality characteristics of White Leghorn layer breeders.
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