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The production of recombinant
proteins in the eggs of transgenic chickens offers some
advantages. A chicken's generation time is around 6 months. That's
far shorter than the generation time of a large mammal, such as a
goat, which requires 18 months to grow from engineered embryo to
milk-yielding adult. Chickens also produce lots of protein. Each
of the approximately 330 eggs a hen lays annually contains 6.5
grams of various proteins. An additional advantage of producing
pharmaceuticals in eggs is that egg white is far less complex
biochemically than milk is, and there are established methods for
easily extracting various proteins from eggs.Companies using
Transgenic Biotechnology
Origen Therapeutics
TranXenoGen
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