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In 2015, the European Union voted to ban the cloning of farm animals (cattle, pigs, sheep, goats, and horses), and the sale of cloned livestock, their offspring, and products derived from them, such as meat and milk. The ban excluded cloning for research, and for the conservation of rare breeds and endangered species.
The first transgenic livestock were produced in 1985 [28] and the first animal to synthesise transgenic proteins in their milk were mice, [29] engineered to produce human tissue plasminogen activator in 1987. [30]
ViaGen began by offering cloning to the livestock and equine industry in 2003, [20] and later as ViaGen Pets included cloning of cats and dogs in 2016. [21] ViaGen's subsidiary, start licensing, owns a cloning patent which is licensed to their only competitor as of 2018, who also offers animal cloning services. [22] (Viagen is a subsidiary of ...
Animals are generally much harder to transform and the vast majority are still at the research stage. Mammals are the best model organisms for humans. Livestock is modified with the intention of improving economically important traits such as growth rate, quality of meat, milk composition, disease resistance, and survival.
Tracy (1990 – 1997) was a transgenically modified sheep created by scientists at Scotland's Roslin Institute to produce the human protein alpha 1-antitrypsin, a substance regarded in the 1990s as a potential pharmaceutical for the treatments of cystic fibrosis and emphysema. [1] Notably, she is the first transgenic farm mammal ever created. [2]
Human cloning is the creation of a genetically identical copy of a human. The term is generally used to refer to artificial human cloning, which is the reproduction of human cells and tissues. It does not refer to the natural conception and delivery of identical twins. The possibility of human cloning has raised controversies. These ethical ...
This technique is currently the basis for cloning animals (such as the famous Dolly the sheep), [30] and has been proposed as a possible way to clone humans. Using SCNT in reproductive cloning has proven difficult with limited success. High fetal and neonatal death make the process very inefficient.
One approach to this technology is the creation of a transgenic mammal that can produce the biopharmaceutical in its milk (or blood or urine). Once an animal is produced, typically using the pronuclear microinjection method, it becomes efficacious to use cloning technology to create additional offspring that carry the favorable modified genome ...