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Agriculture and gene editing … shades of the AquAdvantage salmon

Salmon are not the only food animals being genetically altered (more about that later in this post) we can now add cows, pigs, and more.

This November 15, 2018 article by Candice Choi on the Huffington Post website illustrates some of the excitement and terror associated with gene editing farm animals,

A company wants to alter farm animals by adding and subtracting genetic traits in a lab. It sounds like science fiction, but Recombinetics sees opportunity for its technology in the livestock industry.

But first, it needs to convince regulators that gene-edited animals are no different than conventionally bred ones. To make the technology appealing and to ease any fears that it may be creating Franken-animals, [emphasis mine] Recombinetics isn’t starting with productivity. Instead, it’s introducing gene-edited traits as a way to ease animal suffering.

“It’s a better story to tell,” said Tammy Lee, CEO of the St. Paul, Minnesota-based company.

For instance, animal welfare advocates have long criticized the way farmers use caustic paste or hot irons to dehorn dairy cows so the animals don’t harm each other. Recombinetics snips out the gene for growing horns so the procedure is unnecessary. [emphases mine]

Last year, a bull gene-edited by Recombinetics to have the dominant hornless trait sired several offspring. All were born hornless as expected, and are being raised at the University of California, Davis. Once the female offspring starts lactating, its milk will be tested for any abnormalities.

Another Recombinetics project: castration-free pigs.

When male piglets go through puberty, their meat can take on an unpleasant odour, something known as “boar taint.” To combat it, farmers castrate pigs, a procedure animal welfare advocates say is commonly performed without painkillers. Editing genes so that pigs never go through puberty would make castration unnecessary.

Also in development are dairy cows that could withstand higher temperatures, so the animals don’t suffer in hotter climates. [emphasis mine]

..

Before food from gene-edited animals can land on dinner tables, however, Recombinetics has to overcome any public unease about the technology.

Beyond worries about “playing God,” it may be an uncomfortable reminder of how modern food production already treats animals, said Paul Thompson, a professor of agriculture at Michigan State University.

“There’s an ethical question that’s been debated for at least the last 20 years, of whether you need to change the animal or change the system,” Thompson said.

Support for gene editing will also likely depend on how the technology is used: whether it’s for animal welfare, productivity or disease resistance. In August, a Pew study found 43 per cent of Americans supported genetically engineered animals for more nutritious meat.

Choi has written an interesting article, which includes a picture of the hornless cows embedded in the piece. One note: Choi makes reference to a milk glut. As far as I’m aware that’s not the case in Canada (at this time) but it is a problem in the US where in 2015 (?) farmers dumped some 43  million gallons of milk (October 12, 2016 article by Martha C. White for Money magazine).

As for the salmon, I’ve covered that story a few times during its journey to being approved for human consumption i Canada (my May 20, 2016 posting) to the discovery in 2017 that the genetically modified product, AquAdvantage salmon, had been introduced into the market, (from my Sept. 13, 2017 posting; scroll down about 40R of the way),

“Since the 2016 approval, AquAdvantage salmon, 4.5M tonnes has been sold in Canada according to an Aug. 8, 2017 article by Sima Shakeri for Huffington Post …”

After decades of trying to get approval by in North America, genetically modified Atlantic salmon has been sold to consumers in Canada.

AquaBounty Technologies, an American company that produces the Atlantic salmon, confirmed it had sold 4.5 tonnes of the modified fish on August 4 [2017], the Scientific American reported.

The fish have been engineered with a growth hormone gene from Chinook salmon to grow faster than regular salmon and require less food. They take about 18 months to reach market size, which is much quicker than the 30 months or so for conventional salmon.

The Washington Post wrote AquaBounty’s salmon also contains a gene from the ocean pout that makes the salmon produce the growth hormone gene all-year-round.

The company produces the eggs in a facility in P.E.I. [Prince Edward Island; a province in Canada], which is currently being expanded, and then they’re shipped to Panama where the fish are raised.

….

There was a bit of a kerfuffle about the whole affair but it seems Canadians have gone on to embrace the genetically modified product. At least that’s Christine Blank’s perspective in her Sept. 13, 2018 article (Canada, US embrace AquAdvantage GMO salmon, Brazil and China may be next) for the Genetic Literacy Project website,

Genetically modified salmon firm AquaBounty has found “very enthusiastic” buyers in Canada, according to president and CEO Ronald Stotish.

The first sale of the Maynard, Massachusetts, U.S.A.-based firm’s AquAdvantage salmon was made last June [2017], when unnamed buyers in Canada bought five metric tons at the going rate of traditional farmed Atlantic salmon, according to the company. Since then, AquaBounty has sold 10 additional metric tons of its AquAdvantage salmon to buyers in Canada

Meanwhile, Stotish revealed that AquAdvantage will be sold in the U.S. through established distributors.

“Once [AquaBounty salmon] is established in the market, the option for branding as a ‘sustainably produced’ food item can be considered,” he told investors.

Alex Gillis’ June 5, 2018 article for Macleans magazine suggests that Canadians may be a bit more doubtful about GM (genetically modified) salmon than Stotish seems to be believe,

An Ipsos Reid poll conducted for the Canadian Biotechnology Action Network in 2015 suggested that Canadians are concerned about GM foods, in spite of government assurances that they’re safe. About 60 per cent of respondents opposed genetically modifying crops and animals for food; nearly half supported a ban on all GM food. More than 20 years of surveys indicate that the vast majority of Canadians want to know when they’re eating GMOs. Fully 88 per cent of those polled in the 2015 survey said they want mandatory labelling.

Their concern hasn’t escaped the notice of those who raise and sell much of the salmon consumed in this country. Five years ago, Marine Harvest, one of the world’s largest producers of farmed salmon, called for labelling of GMOs. Today, it says that it doesn’t grow, sell or research GM salmon, a policy it shares with major salmon producers in Canada. And most big grocery retailers have stated they don’t want GM salmon. When contacted by Maclean’s for this story, Metro, Sobeys, Wal-Mart and Loblaws—four of Canada’s five largest food retailers—declared that none of AquaBounty’s GM salmon from 2017 was sold in their stores, saying neither Sea Delight Canada nor Montreal Fish Co. supplied them with Atlantic salmon at the time.

“I’m happy to report that we don’t source salmon from these two companies,” says Geneviève Grégoire, communications adviser with Metro Richelieu Inc., which operates or supplies 948 food stores in Quebec and Ontario, including Metro, Super C, Food Basics, Adonis and Première Moisson. “As we said before, we didn’t and will not sell GM Atlantic salmon.”

If you’re looking for a more comprehensive and critical examination of the issue, read Lucy Sharratt’s Sept. 1, 2018 article for the Canadian Centre for Policy Alternatives (CCPA).