| Early primary-rather than primordial follicles constitute the main follicular reserve in the African elephant (Loxodonta africana). | |
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MedLine Citation:
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PMID: 21126835 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Information on the ovarian follicle reserve in the African elephant (Loxodonta africana) is lacking. This study set out to determine the ratios of early preantral follicles and their relative dimensions in the ovaries of 16 African elephant aged 10-34 years. The ovaries were sectioned histologically. Follicles were counted and classified according to expansion of the pre-granulosa cells. Early primary follicles were the most common (75.8%±11.8%), followed by true primary follicles (23.8%±11.8%), whereas primordial follicles were the most rare (<2%). Measurements made on at least 100 early preantral follicles from each animal (n=1464) indicate that growth in oocyte and nuclear diameters started with transition to the true primary stage P<0.01. This, together with the observed ratios between the three types of early preantral follicles suggest that both classical primordial and early primary follicles contribute to the ovarian reserve in the African elephant. |
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Authors:
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Fiona J Stansfield; Helen M Picton; J O Nöthling |
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Publication Detail:
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Type: Journal Article Date: 2010-11-10 |
Journal Detail:
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Title: Animal reproduction science Volume: 123 ISSN: 1873-2232 ISO Abbreviation: Anim. Reprod. Sci. Publication Date: 2011 Jan |
Date Detail:
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Created Date: 2011-01-25 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7807205 Medline TA: Anim Reprod Sci Country: Netherlands |
Other Details:
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Languages: eng Pagination: 112-8 Citation Subset: IM |
Copyright Information:
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Copyright © 2010 Elsevier B.V. All rights reserved. |
Affiliation:
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Department of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, South Africa. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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