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GMOs Cause Health Problems in Pigs

A study shows genetically modified feed affects condition of pigs’ stomach and uterus, opening up more questions about GMOs’ effects on livestock.

June 21, 2013

A new study shows that pigs fed a diet with genetically modified ingredients had heavier uteruses (a sign of disease) and severe stomach inflammation. Photo courtesy Zoonar/Thinkstock (HobbyFarms.com)
Courtesy Zoonar/Thinkstock
A new study shows that pigs fed a diet with genetically modified ingredients had heavier uteruses (a sign of disease) and severe stomach inflammation.

A recently published, cross-continental study of pigs and genetically modified crops shows that pigs were harmed by the consumption of feed containing genetically modified ingredients. According to the study, GM-fed female pigs had on average a 25-percent heavier uterus than non-GM-fed female pigs, a possible indicator of disease that requires further investigation. Also, the level of severe inflammation in stomachs was markedly higher in pigs fed on the GM diet.

The 168 newly-weaned pigs studied were housed in a commercial piggery and fed either a typical diet incorporating GM soy and corn or an equivalent non-GM diet. The pigs were reared under identical housing and feeding conditions and were slaughtered at the typical age of 5 months, after eating the diets for their entire commercial lifespan. Qualified veterinarians, who were not informed which pigs were fed on the GM diet, then autopsied the pigs.

According to lead researcher Dr. Judy Carman, PhD, adjunct professor at Flinders University in Adelaide, Australia, the results of the study are significant for several reasons:

  • The pigs were kept in real on-farm conditions, not in a laboratory.
  • Pigs were used. "Pigs with these health problems end up in our food supply. We eat them,” Carman says. "[Additionally], pigs have a similar digestive system to people, so we need to investigate if people are also getting digestive problems from eating GM crops.”
  • All pigs were fed a commonly used feed, with the same ratio of soy and corn. However, the GM diet contained three GM genes and the GM proteins they produce. "Yet no food regulator anywhere in the world requires a safety assessment for the possible toxic effects of mixtures,” Carman says. "Regulators simply assume that they can't happen.”

The new study lends scientific credibility to anecdotal evidence from farmers and veterinarians, who have for some years reported reproductive and digestive problems in pigs fed a diet containing GM soy and corn.

"Our results provide clear evidence that regulators need to safety-assess GM crops containing mixtures of GM genes, regardless of whether those genes occur in the one GM plant or in a mixture of GM plants eaten in the same meal, even if regulators have already assessed GM plants containing single GM genes in the mixture,” Carman says.

Iowa-based farmer and crop and livestock advisor Howard Vlieger, one of the study’s coordinators, notes that he’s seen increasing digestive and reproductive problems in his livestock since GM crops entered the food supply.

"In my experience, farmers have found increased production costs and escalating antibiotic use when feeding GM crops,” Vlieger says. "In some operations, the livestock death [toll] is high, and there are unexplained problems including spontaneous abortions, deformities of newborn animals, and an overall listlessness and lack of contentment in the animals.”

Vlieger also notices some animals become very aggressive after ingesting feeds containing GM ingredients.

"This is not surprising, given the scale of stomach irritation and inflammation now documented. I have seen no financial benefit to farmers who feed GM crops to their animals," he says.

 

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GMOs Cause Health Problems in Pigs

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Reader Comments
And we are back to the apathetic self indulgent society.
C, A, MO
Posted: 6/26/2013 7:29:19 AM
no
d, d, DE
Posted: 6/25/2013 8:35:32 AM
thanks T, from Ohio,
I would also like to say that if anyone has not yet watched "Food Inc." please do so, it will give you a glimpse into what Monsanto is doing. Pay attention to the list of politicians who are former Monsanto employees.
C, A, MO
Posted: 6/25/2013 5:04:12 AM
Really? No kidding? GMOs = toxins? Who would have guessed? Is anyone really surprised by this?
Well guess what folks the government is pushing the same GM foods down our throats as well. We need to stand strong against GMOs. Demand independant research. Plant only Heirloom seeds and grow organically. Read C from MO's comment, he's right. The small farmer is getting bullied by government and Monsanto type mega-Corps.
End GMOs.
T, Dayton, OH
Posted: 6/24/2013 3:57:57 AM
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