Developmental Competence of HMC Derived Bovine Cloned Embryos Obtained from Somatic Cell Nuclear Transfer of Adult Fibroblasts and Granulosa Cells
-
- BHOJWANI Sanjay
- Department of Reproductive Biology, Research Institute for the Biology of Farm Animals
-
- VAJTA Gabor
- Section of Reproductive Biology, Department of Animal Breeding and Genetics, Danish Institute of Agricultural Sciences
-
- CALLESEN Henrik
- Section of Reproductive Biology, Department of Animal Breeding and Genetics, Danish Institute of Agricultural Sciences
-
- ROSCHLAU Knut
- Rinder Produktion Niedersachsen
-
- KUWER Andreas
- Rinder Produktion Niedersachsen
-
- BECKER Frank
- Department of Reproductive Biology, Research Institute for the Biology of Farm Animals
-
- ALM Hannelore
- Department of Reproductive Biology, Research Institute for the Biology of Farm Animals
-
- TORNER Helmut
- Department of Reproductive Biology, Research Institute for the Biology of Farm Animals
-
- KANITZ Wilhelm
- Department of Reproductive Biology, Research Institute for the Biology of Farm Animals
-
- POEHLAND Ralf
- Department of Reproductive Biology, Research Institute for the Biology of Farm Animals
Search this article
Abstract
To enable us to handle a large number of oocytes at a given time and to have an increased throughput of cloned embryos, we attempted the Handmade cloning (HMCTM) technique, a zona-free method of bovine somatic cell nuclear transfer. Our objective was to study the developmental competence of the HMCTM derived embryos obtained using different types of somatic cells. A total of 6,874 cumulus-oocyte-complexes were used with either 7th or 11th passage fibroblasts (1st and 2nd groups, respectively), which were prepared from male animals, or granulosa cells (3rd group) as nuclei donors. The average cleavage rate was 65%, accompanied by a blastocyst rate of just 2% for the cleaved products and 5% for the > 8-cell embryos, and there was no significant difference between the three groups. Out of 27 blastocysts recovered, 22 blastocysts were transferred to 22 recipients, resulting in two pregnancies. One pregnancy was lost after the fourth week while the other progressed to full term with the birth of a male calf. This first successful cloning of a male calf with the HMCTM technique in Europe indicates the successful adoption and establishment of this technique in our laboratory, and that this technique can be successful in producing viable embryos.<br>
Journal
-
- Journal of Reproduction and Development
-
Journal of Reproduction and Development 51 (4), 465-475, 2005
The Society for Reproduction and Development
- Tweet
Details 詳細情報について
-
- CRID
- 1390282681313888896
-
- NII Article ID
- 10027325387
-
- NII Book ID
- AA10936678
-
- COI
- 1:STN:280:DC%2BD2Mvnt12rsA%3D%3D
-
- ISSN
- 13484400
- 09168818
-
- NDL BIB ID
- 7412283
-
- PubMed
- 16141646
-
- Text Lang
- en
-
- Data Source
-
- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
-
- Abstract License Flag
- Disallowed