by nomo » Fri Jan 13, 2006 4:03 am
Taiwan breeds green-glowing pigs<br>By Chris Hogg <br>BBC News, Hong Kong<br><br><!--EZCODE AUTOLINK START--><a href="http://news.bbc.co.uk/2/hi/asia-pacific/4605202.stm">news.bbc.co.uk/2/hi/asia-...605202.stm</a><!--EZCODE AUTOLINK END--><br><br>Scientists in Taiwan say they have bred three pigs that glow in the dark.<br><br>They claim that while other researchers have bred partly fluorescent pigs, theirs are the only pigs in the world which are green through and through.<br><br>The pigs are transgenic, created by adding genetic material from jellyfish into a normal pig embryo.<br><br>The researchers hope the pigs will boost the island's stem cell research, as well as helping with the study of human disease.<br><br>The researchers, from National Taiwan University's Department of Animal Science and Technology, say that although the pigs glow, they are otherwise no different from any others.<br><br>Taiwan is not claiming a world first. Others have bred partially fluorescent pigs before. But the researchers insist the three pigs they have produced are better.<br><br>They are the only ones that are green from the inside out. Even their heart and internal organs are green, they say.<br><br>To create them, DNA from jellyfish was added to about 265 pig embryos which were implanted in eight different pigs.<br><br>Four of the pigs became pregnant and three male piglets were born three months ago.<br><br>Green generation<br><br>In daylight the researchers say the pigs' eyes, teeth and trotters look green. Their skin has a greenish tinge.<br><br>In the dark, shine a blue light on them and they glow torch-light bright.<br><br>The scientists will use the transgenic pigs to study human disease. Because the pig's genetic material is green, it is easy to spot.<br><br>So if, for instance, some of its stem cells are injected into another animal, scientists can track how they develop without the need for a biopsy or invasive test.<br><br>But creating them has not been easy. Many of the altered embryos failed to develop.<br><br>The researchers say they hope the new, green pigs will mate with ordinary female pigs to create a new generation - much greater numbers of transgenic pigs for use in research. <br> <p></p><i></i>