ENVIRONMENTAL FACTORS AND REPRODUCTION IN THE FEMALE HOPPING MOUSE, NOTOMYS ALEXIS

W. G. BREED

doi:10.1530/jrf.0.0450273

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ENVIRONMENTAL FACTORS AND REPRODUCTION IN THE FEMALE HOPPING MOUSE, NOTOMYS ALEXIS

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W. G. BREED

W. G. BREED
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DOI:: https://doi.org/10.1530/jrf.0.0450273

Volume/Issue:: Volume 45: Issue 2

Page Range:: 273–281

Article Type:: Research Article

Online Publication Date:: Nov 1975

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Summary.

Australian hopping mice (Notomys alexis) were subjected to short or long photoperiods, different social environments and/or water deprivation. The age at which vaginal opening and first oestrus occurred was delayed by short photoperiods and by the absence of male proximity. Water deprivation prevented normal maturation. The normal 7 to 8 day oestrous cycle was prolonged by short photoperiods or water deprivation. Animals deprived of water had lighter body, ovarian and uterine weights, and follicular growth seemed to be impaired. No differences in organ weights were found between animals in the two photoperiods. The significance of the findings is discussed.

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