Death losses due to stillbirth, neonatal death and diseases in cloned cattle derived from somatic cell nuclear transfer and their progeny: a result of nationwide survey in Japan
- 26 May 2009
- journal article
- Published by Wiley in Animal Science Journal
- Vol. 80 (3), 233-238
- https://doi.org/10.1111/j.1740-0929.2009.00640.x
Abstract
To obtain the data concerning death losses due to stillbirth, neonatal death and diseases in cloned cattle derived from somatic cell nuclear transfer (SCNT) and their progeny produced by Japanese institutions, a nationwide survey was carried out in July-August, 2006. As a result, lifetime data concerning 482 SCNT cattle (97.5% of cattle produced in the country at that time) and 202 progeny of SCNT cattle were accumulated and the death loss of these cattle was analyzed. Although 1/3 of delivered SCNT calves died during the perinatal period due to stillbirth and neonatal death, incidence of death loss due to diseases in SCNT cattle surviving more than 200 days after birth seems to be the same as these in conventionally bred cattle. In contrast, progeny of SCNT cattle showed the same level in death loss as observed in conventionally bred cattle throughout their lifetime. These results suggest that robust health would be expected in SCNT cattle surviving to adulthood and their progeny.Keywords
This publication has 25 references indexed in Scilit:
- The US FDA and animal cloning: Risk and regulatory approachTheriogenology, 2007
- How healthy are clones and their progeny: 5 years of field experienceTheriogenology, 2007
- Semen and reproductive profiles of genetically identical cloned bullsTheriogenology, 2006
- Errors in development of fetuses and placentas from in vitro-produced bovine embryosTheriogenology, 2006
- Tissue-Specific Elevated Genomic Cytosine Methylation Levels Are Associated with an Overgrowth Phenotype of Bovine Fetuses Derived by In Vitro Techniques1Biology of Reproduction, 2004
- Zootechnical Performance of Cloned Cattle and Offspring: Preliminary ResultsCloning and Stem Cells, 2004
- Review: Health Status of Cloned Cattle at Different AgesCloning and Stem Cells, 2004
- Do cloned mammals skip a reprogramming step?Nature Biotechnology, 2004
- Cloned Cattle Can Be Healthy and NormalScience, 2001
- Cloning of calves from various somatic cell types of male and female adult, newborn and fetal cowsReproduction, 2000