Canada weighs approval of genetically engineered pigs

Dec 22, 2025

According to a recent USDA-FAS report, Canada is reviewing the potential commercial use of genetically engineered pigs, while pausing regulatory changes related to cloned swine.

USDA-FAS reports that Environment and Climate Change Canada consulted with the public between June 20 and July 20, 2025, on four lines of genetically engineered pigs submitted under the New Substances program. The proposal would allow the pigs to be used in commercial breeding operations and pork production. A regulatory decision had not yet been released at the time of writing, and Health Canada had not published food safety assessments related to the pigs.

Separately, Health Canada has indefinitely paused a proposed policy update that would have removed cattle and swine clones produced through somatic cell nuclear transfer, and their offspring, from Canada’s novel food regulations. The policy change was first proposed in spring 2024 but was halted in fall 2025 following consumer and industry feedback.

Under the current framework, food products derived from cloned swine remain classified as novel foods and continue to require pre-market approval.

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Video: Five Confirmed New World Screwworm Cases Raise Alarm for Livestock and Pet Owners

Pat Hoffmann, Swine Technical Consultant at Elanco Animal Health tells us about the impact of New World Screwworm. The emergence of New World screwworm in the U.S. creates a threat for veterinarians, livestock producers and pet owners that has not been seen north of the Florida Keys since the fly was eradicated from the United States more than 50 years ago. New World screwworm (Cochliomyia hominivorax) larvae feed on living tissue and can affect a wide range of warm-blooded animals, including livestock, companion animals, wildlife, and even humans.
“New World screwworm could have a devastating impact on animal health, welfare, and producer livelihoods,” said Jeff Simmons, President and CEO, Elanco Animal Health. “We want to thank the FDA, EPA and USDA, for all their work to prepare for this threat. We’re committed to supporting our customers during this challenging time by delivering innovation, scientific expertise, and available resources to help treat New World screwworm and support the health and well-being of animals.”
Elanco is working alongside the U.S. animal health industry to help them fight against this parasite, offering a portfolio of options for pets and livestock that can help treat New World screwworm larvae infestations.