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Reproduction in the Angolan free-tailed bat Tadarida condylura in the Eastern Transvaal
Dissertation (MSc (Zoology))--University of Pretoria, 1993.
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| Format: | Thesis |
| Language: | English |
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University of Pretoria
2024
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| _version_ | 1867613543340179456 |
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| access_status_str | Open Access |
| author2 | Van der Merwe, M. |
| author_browse | Van der Merwe, M. |
| author_facet | Van der Merwe, M. |
| collection | Thesis |
| dc_rights_str_mv | © 2024 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MSc (Zoology))--University of Pretoria, 1993. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/99519 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:37:49.221Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/99519 Reproduction in the Angolan free-tailed bat Tadarida condylura in the Eastern Transvaal Van der Merwe, M. Vivier, Leon Reproduction Angolan free-tailed bat Tadarida condylura Eatern Transvaal UCTD Dissertation (MSc (Zoology))--University of Pretoria, 1993. The reproductive patterns of the male and female Angolan free-tailed bat, T. condylura, were investigated at two localities in the Eastern Transvaal. Reproductive tracts were examined histologically. Female T. condylura were seasonal bimodally polyoestrus breeders with the breeding season extending from early spring (September) to late autumn (May). Parturition of the first offspring in early December was followed by a post-partum oestrus with females becoming pregnant within two weeks after first parturitions. Gestation and lactation periods were approximately 85 and 50 days, respectively. Ovarian follicle and endometrium development closely followed the breeding season, both displaying a bimodal pattern. The reproductive tract displayed dextral dominance typical of molossids. Prior to implantation, both uterine cornu were characterised by a decidual reaction. Implantation of the bilaminar blastocyst was mesometrial with the embryonic disc oriented antimesometrially. At the site of first attachment, a pre-placental pad of trophoblast cells was formed. Development of the placenta occurred in the abembryonic hemisphere. Male T. condylura displayed a bimodally seasonal breeding pattern extending from early June to February which closely parallelled the female reproductive pattern. Spermatogenic and accessory gland activities were synchronised. The testes never regressed to prepubertal conditions, but maintained baseline spermatogenic activity during reproductive quiescence. Reproductive recrudescence began during June and maximum testes and epididymides size coincided with the onset of copulation and conception in females. Leydig cell morphology and nucleus diameter closely parallelled spermatogenic activity. The germinal epithelium displayed an eleven stage spermatogenic cycle. Zoology and Entomology MSc (Zoology) 2024-11-27T09:16:05Z 2024-11-27T09:16:05Z 21/12/06 1993 Dissertation http://hdl.handle.net/2263/99519 en © 2024 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | Reproduction Angolan free-tailed bat Tadarida condylura Eatern Transvaal UCTD Reproduction in the Angolan free-tailed bat Tadarida condylura in the Eastern Transvaal |
| title | Reproduction in the Angolan free-tailed bat Tadarida condylura in the Eastern Transvaal |
| title_full | Reproduction in the Angolan free-tailed bat Tadarida condylura in the Eastern Transvaal |
| title_fullStr | Reproduction in the Angolan free-tailed bat Tadarida condylura in the Eastern Transvaal |
| title_full_unstemmed | Reproduction in the Angolan free-tailed bat Tadarida condylura in the Eastern Transvaal |
| title_short | Reproduction in the Angolan free-tailed bat Tadarida condylura in the Eastern Transvaal |
| title_sort | reproduction in the angolan free tailed bat tadarida condylura in the eastern transvaal |
| topic | Reproduction Angolan free-tailed bat Tadarida condylura Eatern Transvaal UCTD |
| url | http://hdl.handle.net/2263/99519 |