An Israeli-developed method to enhance prawn yields without resorting to genetic modification has started to take hold in Asia, the researcher who has developed the technology said.br clear='all'/img width='1' height='1' src='http://reuters.us.feedsportal.com/c/35217/f/654220/s/4ac97d30/sc/28/mf.gif' border='0'/div class="feedflare"
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