Effects of constant, 9 and 16-h light cycles on sperm quality, semen storage ability and motile sperm subpopulations structure of boar semen

M. M. Rivera, A. Quintero-Moreno, X. Barrera, T. Rigau, J. E. Rodríguez-Gil

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    13 Citations (Scopus)

    Abstract

    This study was performed to test the effect that two separate, daily, constant-light regimes of both 9 and 16 h could have on the main parameters of boar-semen quality analysis, as well as on the motile sperm subpopulations structure and the ability of its conservation at 16°C. Results show that both luminous regimes have slight, specific effects on the main parameters of boar-semen quality analysis, as well as on the motile sperm subpopulations structure. Furthermore, the conservation ability at 16°C of boar semen was not significantly different between both photoperiods. When a temporal study was performed, results showed that semen quality and motility parameter changes were stabilized at nearly constant values from the second month of the study to the last month in both luminous regimes, indicating a rapid light-related effect on testicular function. Our results indicate that light regimes oscillating from 9 h daily to 16 h daily are of little importance in the control of boar-semen quality in a farming environment. © 2006 The Authors.
    Original languageEnglish
    Pages (from-to)386-393
    JournalReproduction in Domestic Animals
    Volume41
    Issue number5
    DOIs
    Publication statusPublished - 1 Oct 2006

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