Academic
Publications
Piglets born from handmade cloning, an innovative cloning method without micromanipulation

Piglets born from handmade cloning, an innovative cloning method without micromanipulation,10.1016/j.theriogenology.2007.07.021,Theriogenology,Y. Du,P

Piglets born from handmade cloning, an innovative cloning method without micromanipulation   (Citations: 19)
BibTex | RIS | RefWorks Download
Y. Du, P. M. Kragh, Y. Zhang, J. Li, M. Schmidt, I. B. Bøgh, X. Zhang, S. Purup, A. L. Jørgensen, A. M. Pedersen, K. Villemoes, H. Yanghttp://academic.research.microsoft.com/io.ashx?type=5&id=40612872&selfId1=0&selfId2=0&maxNumber=12&query=
Porcine handmade cloning (HMC), a simplified alternative of micromanipulation based traditional cloning (TC) has been developed in multiple phases during the past years, but the final evidence of its biological value, births of piglets was missing. Here we report the first births of healthy piglets after transfer of blastocysts produced by HMC. As a cumulative effect of technical optimization, 64.3±2.3 (mean±S.E.M.) reconstructed embryos from 151.3±4.8 oocytes could be obtained after 3–4h manual work, including 1h pause between fusion and activation. About half (50.1±2.8%, n=16) of HMC reconstructed embryos developed to blastocysts with an average cell number of 77±3 (n=26) after 7 days in vitro culture (IVC). According to our knowledge, this is the highest in vitro developmental rate after porcine somatic cell nuclear transfer (SCNT). A total of 416 blastocysts from HMC, mixed with 150 blastocysts from TC using a cell line from a different breed were transferred surgically to nine synchronized recipients. Out of the four pregnancies (44.4%) two were lost, while two pregnancies went to term and litters of 3 and 10 piglets were delivered by Caesarean section, with live birth/transferred embryo efficiency of 17.2% (10/58) for HMC. Although more in vivo experiments are still needed to further stabilize the system, our data proves that porcine HMC may result in birth of healthy offspring. Future comparative examinations are required to prove the value of the new technique for large-scale application.
Journal: Theriogenology , vol. 68, no. 8, pp. 1104-1110, 2007
Cumulative Annual
View Publication
The following links allow you to view full publications. These links are maintained by other sources not affiliated with Microsoft Academic Search.
Sort by: