This little piggy’s manure causes less pollution. This little piggy produces extra milk for her babies. And this little piggy makes fatty acids normally found in fish, so that eating its bacon might actually be good for you.
The three pigs, all now living in experimental farmyards, are among the genetically engineered animals whose meat might one day turn up on American dinner plates. Bioengineers have also developed salmon that grow to market weight in about half the typical time, disease-resistant cows and catfish needing fewer antibiotics, and goats whose milk might help ward off infections in children who drink it.
Only now, though, do federal officials seem to be getting serious about drafting rules that would determine whether and how such meat, milk and filets can safely enter the nation’s food supply.
Some scientists and biotechnology executives say that by having the Food and Drug Administration spell out the rules of the game, big investors would finally be willing to put up money to create a market in so-called transgenic livestock.
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