15 – 45 vl of peripheral blood was collected from the tails of mice and prepared for leukocyte nuclei which were used for SCNT. Cloned offspring was born at a 2.8 % birth rate.
Satoshi KAMIMURA et al., Biology of Reproduction, DOI: 10.1095/biolreprod.113.110098
RIKEN researchers show that mice can be cloned from a drop of peripheral blood by somatic cell nuclear transfer (SCNT)