Bovine Development
Introduction
Bovine (taxon- Bos taurus) development is studied extensively due to the commercial applications of cattle both for milk and meat production.
Links: Bovine development original page
Some Recent Findings
- Vascular changes in the corpus luteum during early pregnancy in the cow.[1] "The present study determined vascular changes in the bovine corpus luteum (CL) at Day 16 (early maternal recognition period) and Day 40 in early pregnancy and compared them to the CL from Day 12 and Day 16 of the estrous cycle. ...The results suggest that there is no difference in vascular structure between non-pregnant and pregnant luteal tissue during the early maternal recognition period (Day 16). "
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)
References
- ↑ <pubmed>20103987</pubmed>
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Cite this page: Hill, M.A. (2024, June 3) 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
