Thursday, 23 August 2012

Human MIlk


Human Milk
As we know, the concept of breastfeeding is vital to a child’s physical and mental development as it contains nutrients which no artificial formula can provide. Infants that are breastfed have a smaller chance of being diagnosed with illnesses (Queensland Health 2011) So the importance of breast milk can be seen, however these benefits are not just for infants. Breast milk is comparatively healthier and more nutritious for adults then bovine(cow) milk. As breast milk is not readily available for consumption, scientists in china have been able to 'genetically modify cows to produce human milk'.(Gray 2011)

To create cows that are able to produce 'human milk,' scientists cloned human genetics which where then added specifically into the DNA of Holstein dairy cows using a process called electrotransformation.(Yang 2011) Once these embryo's had been genetically modified with human genes, they were placed into surrogate cows. Once the genetically modified cows where born it was found that their milk contained lysozymes, lactoferrin and alpha-lactalbumin, which are all proteins that are found in human milk and have numerous health benefits.(Gray 2011)






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