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Transgenic Cows Research Paper

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Why were transgenic cows created?
Transgenic cows were mainly created to produce healthier milk. Compared to normal cow's milk, transgenic cows are able to produce more milk that contains more nutrients. Transgenic cows milk can also be used to produce proteins that are used to treat disease.
For example, Chinese scientists have created a cow which produces low lactose milk. People with lactose intolerant will be able to digest this milk without having stomach problems. Normal milk contains lactose, but the milk produced by the transgenic cow contains a very low or even no lactose. To create this transgenic cow, the scientists inserted genes from organisms called archaea into cells from cow embryos. Fourteen embryos were created which were …show more content…

But, is it ethical to create altered animals that may suffer? Ethical issues can arise at all stages in the life span and generations of transgenic cows. It is unethical to modify a cows genetic makeup for a specific purpose, without knowing in advance if there will be any side effects that will cause harm and suffering to the cow. Embryos that undergo the genetic procedures have only a small survival rate(between 1% and 30%). This means that large numbers of cows are produced to obtain the transgenic cows which are of scientific value. An example of this is the genetically modified cows showing increased Tuberculosis resistance. Bovine Tuberculosis(TB) is a infectious disease caused by a bacterium called Mycobacterium bovis. A mouse gene was inserted into the DNA of a cow and 23 transgenic calves were produced. Once the offspring reached adulthood, they showed resistance to TB which shows the benefits of transgenesis. But, of the 23 calves produced, only 13 survived to adulthood. This shows the unethical side of transgenesis and raises the question of whether the sacrifice of some cows makes up for the succession of an experiment, even though we run the huge risks of experiments being

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