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Revision as of 13:39, 4 November 2011
Introduction
Bovine (taxon- Bos taurus) development is studied extensively due to the commercial applications of cattle both for milk and meat production.
Links: Category:Bovine
Animal Development: axolotl | bat | cat | chicken | cow | dog | dolphin | echidna | fly | frog | goat | grasshopper | guinea pig | hamster | horse | kangaroo | koala | lizard | medaka | mouse | opossum | pig | platypus | rabbit | rat | salamander | sea squirt | sea urchin | sheep | worm | zebrafish | life cycles | development timetable | development models | K12 |
Some Recent Findings
|
Taxon
Bos taurus
Genbank common name: cow, bovine, domestic cattle
Taxonomy Id: 9913 Rank: species
Genetic code: Translation table 1 (Standard)
Mitochondrial genetic code: Translation table 2 (Vertebrate Mitochondrial)
Lineage( abbreviated ): Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Laurasiatheria; Cetartiodactyla; Ruminantia; Pecora; Bovidae; Bovinae; Bos; Bos taurus
Bovine Development
The table below shows the general timing of early development stages in the bovine embryo, as well as comparing this to other domestic species.
Implantation in the uterus occurs between 30-35 days.
Species | 1 cell
(hours) |
8 cell
(days) |
Blastocyst
(days) |
Enter Uterus
(days) |
Length of Gestation
(days) |
Cattle | 24 | 3 | 8 | 3.5 | 281 |
Horse | 24 | 3 | 6 | 5 | 337 |
Sheep | 24 | 2.5 | 7 | 3 | 148 |
Swine | 14-16 | 2 | 6 | 2 | 114 |
(Data: Oklahoma State University Learning Reproduction in Farm Animals)
Morula and Blastocyst
Bovine Morula[3]
Bovine Blastocyst[3]
Genital Development
The male bovine (bull) first development of the testis at the genital ridge is triggered by SRY expression following the timeline shown below.[4]
- Day 32 - (CRL 12) Genital ridges first appeared
- Day 37 - (CRL 18) SRY expression begins
- Day 39 - (CRL 20) SRY expression peaks
- Day 42 - (CRL 27) Testis cords distinguishable
References
Reviews
Articles
Search Pubmed
Search Pubmed: bovine development
External Links
External Links Notice - The dynamic nature of the internet may mean that some of these listed links may no longer function. If the link no longer works search the web with the link text or name. Links to any external commercial sites are provided for information purposes only and should never be considered an endorsement. UNSW Embryology is provided as an educational resource with no clinical information or commercial affiliation.
- Oklahoma State University Learning Reproduction in Farm Animals
Animal Development: axolotl | bat | cat | chicken | cow | dog | dolphin | echidna | fly | frog | goat | grasshopper | guinea pig | hamster | horse | kangaroo | koala | lizard | medaka | mouse | opossum | pig | platypus | rabbit | rat | salamander | sea squirt | sea urchin | sheep | worm | zebrafish | life cycles | development timetable | development models | K12 |
Glossary Links
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Cite this page: Hill, M.A. (2024, June 10) Embryology Bovine Development. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Bovine_Development
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G