02 Oct 2012:
Genetically Modified Cow
Reportedly Lacks Allergy-Causing Protein
Scientists in New Zealand have produced a genetically modified cow whose milk lacks a protein that causes allergic reactions in people
, particularly children. Researchers at the government-owned
AgResearch lab used a cloning procedure — the same one used to create Dolly the Sheep in 1996 — to produce a cow named Daisy that lacks a whey protein known as BLG, or beta-lactoglobulin protein, which provokes an allergic reaction in two to three percent of infants. Stefan Wagner, a scientist on the cloning team, said he and his colleagues now plan to investigate whether the BLG-free milk causes allergic reactions and whether the BLG-free cows will produce less milk than normal cows. Meanwhile, some scientists say that the U.S. Food and Drug Administration (FDA) is moving too slowly
to decide whether to allow the production and sale of food from genetically engineered animals. These include a genetically altered salmon that grows much faster than regular salmon, and so-called enviropigs engineered to digest plant phosphorous more efficiently, which could cut feed costs and reduce levels of polluting phosphorous in manure.
Yale Environment 360 is
a publication of the
Yale School of Forestry
& Environmental Studies
Yale Environment 360
articles are now available in Spanish and Portuguese on Universia
, the online educational network. Visit the site.
Business & Innovation
Policy & Politics
Pollution & Health
Science & Technology
Antarctica and the Arctic
Central & South America
Photographer Robert Wintner documents the exquisite beauty and biodiversity of Cuba’s unspoiled coral reefs. View the gallery.
is now available for mobile devices at e360.yale.edu/mobile
The Warriors of Qiugang
, a Yale Environment 360
video, chronicles a Chinese village’s fight against a polluting chemical plant. It was nominated for a 2011 Academy Award for Best Documentary Short.
Watch the video.
Top Image: aerial view of Iceland
. © Google & TerraMetrics.
A three-part series Tainted Harvest
looks at the soil pollution crisis in China, the threat it poses to the food supply, and the complexity of any cleanup. Read the series.