The Latest Cloning Numbers

Date: 04/15/2002

With Dr. Severino Antinori claiming that a woman is 8 weeks pregnant with a human clone and his now ex-partner Panos Zavos planning to have 9-12 women pregnant with clones by August, we wanted to examine just how successful is animal cloning these days now that more than 5 years has passed since Dolly the sheep was born?

Dolly the sheep, first cloned mammal: 1 live birth out of 277 cloned embryos (0.4%)
Cloned mice: 5 live births out of 613 cloned embryos (0.8%)
5 live births out of 314 cloned embryos implanted (1.6%); Survived: 1 (0.8%)
26 live births out of 312 cloned embryos implanted (8.3%); Survived: 13 (4.2%)
Cloned pigs: 5 live births out of 72 cloned embryos implanted (7%)
Cloned goats: 3 live births out of 85 cloned embryos implanted (3.5%)
Cloned cattle: 30 live births out of 496 cloned embryos implanted (6%); Survived: 24 (4.8%)
Cloned guar: 1 live birth out of 692 cloned embryos (0.1%); Survived: 0 (0%)
Cloned cat: 1 live birth out of 188 cloned embryos (0.5%); of 87 embryos implanted (1.1%)
Cloned rabbits: 6 live births out of 1852 cloned embryos (0.3%); Survived: 4 (0.2%)