World’s First Genetically Modified Cow to Produce Low-Lactose Milk
June 14th, 2012 – Jill Ettinger
Scientists at the Inner Mongolia Agricultural University of Life Sciences, Biological Manufacturing Key Laboratory in north China say that they have successfully bred the world’s first genetically modified calf able to produce low-lactose milk within two years.
Named “Lakes,” the calf was born on April 24th after the research team used extracted fetus fibroblasts taken from a Holstein cow who was 45 days pregnant. The team then genetically engineered the fetus by transplanting a lactose dissolution enzyme into the cell of the unborn calf. The fetus was then transplanted into the womb of a cow in July where it completed a successful 9-month gestation period. Two other fetuses in the experiment died.
The enzyme, which can dissolve lactose—the sugar in dairy products that causes digestive distress—will theoretically affect the lactose production in the GMO cow’s milk, potentially creating a more digestible dairy product. This is especially pertinent to Asian cultures where lactose intolerance is considerably common (as much as 60 percent of the Chinese population is believed to be lactose intolerant).
This is not the first genetically modified cow to be produced in China. Last year, researchers announced they had modified a herd of cows to produce a milk with more similarities to human breast milk than cows milk, so it could be used in place of or in conjunction with breastfeeding. It was also intended for the adult population—Chinese emperors and empresses also reportedly drank human milk throughout their entire lives. And with the number of lactose intolerant Chinese, milk alternatives are a buzzing category.
Keep in touch with Jill on Twitter @jillettinger
Image: Shan213
Tags: genetically modified, Genetically modified cows, gmo dairy, GMOs, lactose intolerant
To Your Health 
Charlotte Bean said,
June 18, 2012 at 7:31 pm
Cows produce milk to feed their calves. They require lactose. Genetically Modifying cows is a really bad idea. If humans do not want lactose, they should not consume milk. Good traditional Chinese diet does not use milk and is very healthy. Do not lose this Tradition.
Hiroko Chheng said,
August 9, 2012 at 6:20 am
I have a bit of lactose intolerance and consuming too much milk really gives me an upset stomach. ;”;::
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Carlyn Thacher said,
March 14, 2013 at 10:50 am
Milk, by itself, somehow saved lives. This is odd, because milk is just food, just one source of nutrients and calories among many others. It’s not medicine. But there was a time in human history when our diet and environment conspired to create conditions that mimicked those of a disease epidemic. Milk, in such circumstances, may well have performed the function of a life-saving drug.”
Go look at our very own webpage too
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