| Effects of duration of daily illumination on reproductive organs and fertility of the meadow vole (Microtus pennsylvanicus). | |
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MedLine Citation:
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PMID: 379433 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The objective of this study was to determine the optimum simple, constant photoperiod for voles in a laboratory colony. Voles from an established colony maintained at 22 degrees C with a photoperiod of 14:10 hours of light:dark were transferred at 50 days of age to a photoperiod of 12:12, 14:10, 16:8 or 18:6 hours of light:dark. From Day 96 to Day 102, the 9--10 females per treatment group were paired with a male. Body and gonadal weights, spermatogenesis, ovarian activity and pregnancy were evaluated on Day 110. Reproductive function and body weight of both male and female voles maintained on a photoperiod of 16:8 exceeded (p less than 0.05) values for voles exposed to 12:12 hours of light:dark and tended to be more favorable than for voles in the 14:10 and 18:6 groups. |
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Authors:
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K J Imel; R P Amann |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Laboratory animal science Volume: 29 ISSN: 0023-6764 ISO Abbreviation: Lab. Anim. Sci. Publication Date: 1979 Apr |
Date Detail:
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Created Date: 1979-09-25 Completed Date: 1979-09-25 Revised Date: 2005-11-17 |
Medline Journal Info:
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Nlm Unique ID: 1266503 Medline TA: Lab Anim Sci Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 182-5 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Arvicolinae / anatomy & histology, physiology* Female Fertility* Light* Male Organ Size Ovary / anatomy & histology, physiology Periodicity* Rodentia / physiology* Spermatogenesis Testis / anatomy & histology, physiology |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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