Dolphin Development: Difference between revisions
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* '''Seasonality, estrous cycle characterization, estrus synchronization, semen cryopreservation, and artificial insemination in the Pacific white-sided dolphin (Lagenorhynchus obliquidens).''' <ref><pubmed>19494046</pubmed></ref> "Ovulations and conceptions occurred from August to October. Peak mean serum testosterone, cross-sectional testicular area , and sperm concentration occurred in July, August, and September respectively. Spermatozoa were only found in ejaculates from July to October. Estrous cycles were 31 d long and were comprised of a 10 d follicular and 21 d luteal phase. Ovulation occurred 31.2 h after the onset of the LH surge and 19.3 h after the LH peak." | * '''Seasonality, estrous cycle characterization, estrus synchronization, semen cryopreservation, and artificial insemination in the Pacific white-sided dolphin (Lagenorhynchus obliquidens).''' <ref><pubmed>19494046</pubmed>| [http://www.reproduction-online.org/cgi/content/full/138/2/391 Reproduction]</ref> "Ovulations and conceptions occurred from August to October. Peak mean serum testosterone, cross-sectional testicular area , and sperm concentration occurred in July, August, and September respectively. Spermatozoa were only found in ejaculates from July to October. Estrous cycles were 31 d long and were comprised of a 10 d follicular and 21 d luteal phase. Ovulation occurred 31.2 h after the onset of the LH surge and 19.3 h after the LH peak." | ||
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Revision as of 02:03, 22 February 2011
Introduction
Some Recent Findings
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Taxon
Development Overview
Limb Development
Researchers have identified that Sonic hedgehog (Shh), that in limb development is the signaling activity of the zone of polarizing activity (ZPA), is absent from the dolphin hind-limb bud. An absence of Hand2, an upstream regulator of Shh, leads to the failure to establish a ZPA.[2] The hind-limb bud initiates, but then bud arrests and degenerates around the fifth gestational week.
- Links: Limb Development | Sonic hedgehog
References
- ↑ <pubmed>19494046</pubmed>| Reproduction
- ↑ 2.0 2.1 <pubmed>16717186</pubmed>| PNAS
Reviews
<pubmed></pubmed>
Articles
<pubmed></pubmed>
Books
Search PubMed
Search PubMed: Dolphin development | cetacean development
External Links
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Cite this page: Hill, M.A. (2024, April 19) Embryology Dolphin Development. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Dolphin_Development
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G