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  • Title: Effect of photoperiod on testicular histology in golden hamsters and C57 and BALB/C mice.
    Author: Chan WY, Ng TB.
    Journal: Arch Androl; 1994; 32(2):101-9. PubMed ID: 8166574.
    Abstract:
    The effects of different photoperiods (14L:10D, 12L:12D, and 8L:16D) on testes and accessory sex organs were examined in mature male golden hamsters, C57 mice, and Balb/c mice. The seminiferous tubules of hamsters exposed to the 14L:10D and 12L:12D photoperiods contained various stages of spermatogenesis, while the testes of hamsters maintained under the 8L:16D photoperiod were atrophic. The seminal vesicles of hamsters kept under the 14L:10D and 12L:12D photoperiods possessed tall columnar epithelial cells and abundant secretion in the lumen. In contrast, the seminal vesicles of hamsters exposed to the 8L:16D photoperiod had an epithelium made up of low columnar or cuboidal cells and contained a reduced amount of secretion in the lumen. The histological appearances of testes and seminal vesicles of C57 and Balb/c mice exposed to the three different photoperiods were similar.
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