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@article{183315,
        author = {Dr. Archana Masram},
        title = {Chronobiological Shifts in Prolactin Levels and Testicular Function in Male Rousettus leschenaulti (Desmerest)},
        journal = {International Journal of Innovative Research in Technology},
        year = {2025},
        volume = {12},
        number = {3},
        pages = {1331-1336},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=183315},
        abstract = {Male Rousettus leschenaultii, a tropical fruit bat species, is likely to display chrono-biological regulation of reproductive physiology—yet direct data on prolactin (PRL) modulation and testicular activity is lacking. This paper presents a conceptual framework, informed by comparative studies in chiropterans as mammal, proposing that incresing photoperiod, higher temperature, and food availability orchestrate PRL secretion over annual cycles. PRL rhythms are hypothesized to correlate positively with testis growth, spermatogenic activity, and testosterone levels during mating seasons. We carried out a field-based study involving seasonal sampling of adult males, assays of PRL and testosterone, alongside morphometric staging of testes. Expected findings include PRL maxima aligned with testicular recrudescence and spermatogenic peaks, and strong PRL–testis size correlations. PRL concentrations peaking during first Breeding season during February – March where the increased photoperiod and higher temperature. But the second peak in PRL concentration was is comparatively lower than the first one. In second breeding season, i.e. in   winter/fruiting periods, aligning with photoperiod decreases and ambient temperature, testis mass, spermatogenic staging, and circulating testosterone rising in parallel. Significant positive correlations between PRL and testis size/testosterone. Understanding these Chrono biological shifts will shed light on the reproductive ecology of R. leschenaultii, its adaptability to environmental change, and potential conservation implications.},
        keywords = {Male Rousettus leschenaultia, Serum Prolactin, Testosterone, Reproductive Physiology, spermatogenic peaks},
        month = {August},
        }