The present invention provides data to demonstrate that the fusion
performance of a cell-line in procedures involving fusion and cleavage
indices either alone or in combination are a means for selecting a cell
lines that will be successful in a nuclear transfer or microinjection
program. This technique and method of selecting a cell line offers an
additional alternative and improvement in the creation of activated and
fused nuclear transfer-capable embryos for the production of live
offspring in various mammalian non-human species including goats, pigs,
rodents, primates, rabbits and cattle.