Question

How transgenic cattle is commercially beneficial?

Answer 1

1. Researchers have introduced additional copies of bovine beta and kappa casein genes into dairy cattle, resulting in an 8-20% increase in beta casein and a two-fold increase in kappa casein.
2. This improves both the quantity and quality of milk, making it more nutritious for human consumption.
3. Cattle are genetically modified to produce human proteins in their milk.
4. For example, human lactoferrin, human serum albumin, and human bile salt-stimulated lipase have been expressed in cow's milk. These proteins can be used for therapeutic purposes, such as the treatment of diseases like hemophilia.
5. A single transgenic cow could produce enough plasma thromboplastin component (factor IX) for the annual global supply to treat hemophilia.