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13 July, 2010

Here Come the Genetically Modified Fish


By Andrew Pollack

 

Prologue

I am posting here in toto an article that was published in the Manila Bulletin’s “The New York Times” last July 3, 2010 issue.

With the development of techniques for the genetic engineering of salmon, it will not be long before the genetically manipulated tilapia and perhaps other fishes will be seen in the markets.  Remember that the procedure employed in the development of the GIFT tilapia was adapted from salmon.

Except for the fact that GMO’s are not considered organic, this is not viewed negatively.  It only means that there will be fast growing fish species and increased production to fill in the protein requirement of the people. 

Many may react negatively but keep in mind that up to now, no conclusive evidence have been found correlating the ill effects of GMOs to humans.-Philaquaculurist


The United States Food and Drug Administration is seriously considering whether to approve the first genetically engineered animal that the people would eat salmon that can grow at twice the normal rate.

The developer of the salmon has been trying to get approval for a decade.  But, the company now seems to have submitted most or all of the data the F.D.A. needs to analyze whether the salmon are safe to eat nutritionally equivalent to other salmon and safe for the environment, according to government and biotechnology officials.  A public meeting to discuss the salmon maybe held as early as this fall.

Some consumers and environmental groups are likely to raise objections to approval.  Even within the F.D.A., there has been a debate about whether the salmon should be labeled as genetically engineered (genetically engineered crops are not labeled).

The salmon’s approval would help open a path for companies and academic scientists developing other genetically engineered animals, like cattle resistant to mad cow disease or pigs that can supply healthier bacon.  Next behind the salmon for possible approval would probably be the “enviropig”, developed at a Canadian university, which has less phosphorous pollution in its manure.

The salmon was developed by a company called AquaBounty Technologies and would be raised in fish farms.  An Atlantic salmon, it contains a growth hormone gene from Chinook salmon as well as genetic on-switch from the ocean pout, a relative of the salmon.

Normally, salmon do not make growth hormone in cold weather.  But the pout produces the hormone year round.  The result is salmon that can grow to market size in 16 to 18 months instead of three years, though the company says the modified salmon will not end up any bigger than the conventional fish.  “You don’t get salmon the size of the Hindenburg” said Ronald L. Stotish, the chief executive of AquaBounty”.  “You can get to those target weights in a shorter time”. Mr. Stotish said the benefit of the fast growing salmon would be to help supply the world’s food needs using fewer resources.

AquaBounty, based in Waltham, Massachusetts and publicly traded in London, said last month that the F.D.A. had signed off on five of the seven sets of data required to demonstrate that the fish was safe for consumption and for the environment.  It said it demonstrated, for instance, that the inserted gene did not change through multiple generations and that the genetic engineering did not harm the animals.  “Perhaps in the next few months, we expect to see a final approval” Mr. Stotish said.

He said it would take two to three years after approval for the salmon to reach supermarkets.

The F.D.A. confirmed it was reviewing the salmon but, because of confidentiality rules, would not comment further. 

The F.D.A. is regulating genetically engineered animals as if they were veterinary drugs and using the rules for those drugs.  And applications for approval of new drugs must be kept confidential by the agency.

Critics say the drug evaluation process does not allow full assessment of the possible environmental impacts of genetically altered animals and also blocks public input.

“There is no opportunity for anyone from the outside to see the data or criticize it”, said Margaret Mellon, director of the food and environment program of the Union of Concerned Scientists.  When consumer groups were invited to discuss biotechnology policy with top F.D.A. officials in May, Ms. Mellon said she warned the officials that approval of the salmon would generate “a firestorm of negative response”.

How consumers would react is not entirely clear.  Some public opinion surveys have shown that Americans are more wary about genetically engineered animals than about genetically engineered crops now used in a huge number of foods.  But other polls suggest that many Americans would accept the animals if they offered environmental or nutritional benefits.

Some government officials and executives said that F.D.A. officials had discussed internally whether the salmon could be labeled to give consumers warning the choice of avoiding them.

The F.D.A. is expected to hold a public meeting of an advisory committee before deciding whether to approve the salmon.  But Gregory Jaffe, biotechnology project director of the Center for Science in the Public Interest, said such meetings often do not give the public enough time to analyze the data.


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