Science and technology of farm animal cloning: state of the art.
Level 5 - mechanism / opinion, no new human data
Narrative review of animal biotechnology and non-clinical literature (graded by design analogy)
PubMed 16406426 · doi:10.1016/j.anireprosci.2005.12.001
What was done
This narrative review summarizes the technological state, history, animal welfare challenges, and biomedical and agricultural applications of somatic cell nuclear transfer (SCNT) in livestock.
What was found
The abstract reports no numerical data. It notes that since the creation of Dolly the sheep from adult somatic cells in 1997, SCNT has been extended to species including pigs, goats, horses, and cats. The authors report that the technology maintains relatively low success rates, poses substantial animal welfare issues, and is increasingly targeted toward agricultural breeding and transgenic animal production.
Why it matters
The paper outlines the transition of livestock cloning from basic proof-of-concept research to potential commercial and agricultural applications while highlighting ongoing technical and ethical hurdles.
Limits
The review is non-systematic and does not provide pooled quantitative metrics or primary data. The abstract lacks specific figures on success rates or welfare outcomes, and findings are restricted to non-human animal biotechnology.
Cited by
- context Dolly the sheep, cloned in the late 1990s, was the first cloned sheep.