October 22, 2014

Study: GMO Feed Harmful to Pigs

pin it button Study: GMO Feed Harmful to Pigs

Pigs eatingjpg Study: GMO Feed Harmful to Pigs

by GM Watch

A groundbreaking new study [1] shows that pigs were harmed by the consumption of feed containing genetically modified (GM) crops.

GM-fed females had on average a 25% heavier uterus than non-GM-fed females, 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 research results were striking and statistically significant.

Lead researcher Dr Judy Carman, adjunct associate professor at Flinders University, Adelaide, Australia,[2] said: “Our findings are noteworthy for several reasons. First, we found these results in real on-farm conditions, not in a laboratory, but with the added benefit of strict scientific controls that are not normally present on farms.

“Second, we used pigs. Pigs with these health problems end up in our food supply. We eat them.

“Third, pigs have a similar digestive system to people, so we need to investigate if people are also getting digestive problems from eating GM crops.

“Fourth, we found these adverse effects when we fed the animals a mixture of crops containing three GM genes and the GM proteins that these genes produce. Yet no food regulator anywhere in the world requires a safety assessment for the possible toxic effects of mixtures. Regulators simply assume that they can’t happen.

“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.”

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 on a diet containing GM soy and corn.[3]

Iowa-based farmer and crop and livestock advisor Howard Vlieger, one of the coordinators of the study, said: “For as long as GM crops have been in the feed supply, we have seen increasing digestive and reproductive problems in animals. Now it is scientifically documented.

“In my experience, farmers have found increased production costs and escalating antibiotic use when feeding GM crops. In some operations, the livestock death loss is high, and there are unexplained problems including spontaneous abortions, deformities of new-born animals, and an overall listlessness and lack of contentment in the animals.

“In some cases, animals eating GM crops are very aggressive. 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.”

Gill Rowlands, a farmer based in Pembrokeshire, Wales who is also a member of the campaign group GM-Free Cymru, said: “This is an animal welfare issue. Responsible farmers and consumers alike do not want animals to suffer. We call for the rapid phase-out of all GMOs from animal feed supplies.”

Claire Robinson of the campaign group GMWatch said: “Several UK supermarkets recently abandoned their GM-free animal feed policies, citing lack of availability of non-GM feed. We call on the public to visit the new citizens’ action website gmoaction.org, where they can quickly and easily send an email to the supermarkets asking them to ensure their suppliers secure certified GM-free animal feed. This will mean placing advance orders for GM-free soy from countries like Brazil.”

Find a clear summary of the study here: http://gmojudycarman.org/wp-content/uploads/2013/06/Clear-English-explanation-of-the-study-for-website-11Jun13.pdf

Find the full paper here: http://www.organic-systems.org/journal/81/8106.pdf

Website GMOJudyCarman.org with information on Dr Judy Carman’s work: http://www.gmojudycarman.org

Study details

The research was conducted by collaborating investigators from two continents and published in the peer-reviewed Journal of Organic Systems. The feeding study lasted more than five months, the normal commercial lifespan for a pig, and was conducted in the US. The pigs were slaughtered at the usual slaughter age of over 5 months, after eating the diets for their entire commercial lifespan.

168 newly-weaned pigs in a commercial piggery were fed either a typical diet incorporating GM soy and corn, or else (in the control group) an equivalent non-GM diet. The pigs were reared under identical housing and feeding conditions. They were slaughtered over 5 months later, at the usual slaughter age, after eating the diets for their entire commercial lifespan. They were then autopsied by qualified veterinarians who worked “blind” – they were not informed which pigs were fed on the GM diet and which were from the control group.

The GMO feed mix was a commonly used mix. The GM and non-GM diets contained the same amount of soy and corn, except that the GM diet contained a mixture of three GM genes and their protein products, while the control (non-GM) diet had equivalent non-GM ingredients. Of the three GM proteins in the GM diet, one made a crop resistant to being sprayed with the herbicide Roundup, while two were insecticides.

Contact:
Claire Robinson, GMWatch, UK: claire@gmwatch.org To phone within UK: 0752 753 6923. To phone outside UK: +44 752 753 6923
Dr Judy Carman, Adelaide, Australia
To phone within Australia: 08 8332 7927. To phone outside of Australia: +61 8 8332 7927. Email: judycarman@ozemail.com.au
Mr Howard Vlieger, Maurice, Iowa
To phone within the US: 712 567 4151, cell phone 712 441 3911. To phone outside of the US: +1 712 567 4151, cell phone +1 712 441 3911. Email: studentofthesoil@mtcnet.net

Notes
1. Judy A. Carman, Howard R. Vlieger, Larry J. Ver Steeg, Verlyn E. Sneller, Garth W. Robinson, Catherine A. Clinch-Jones, Julie I. Haynes, John W. Edwards (2013). A long-term toxicology study on pigs fed a combined genetically modified (GM) soy and  GM maize diet. Journal of Organic Systems 8 (1): 38-54. Open access full text: http://www.organic-systems.org/journal/81/8106.pdf
2. Dr Judy Carman, BSc (Hons) PhD MPH MPHAA; Epidemiologist and Biochemist; Director, Institute of Health and Environmental Research, Adelaide, Australia; Adjunct Associate Professor, Health and the Environment, School of the Environment, Adelaide, Australia
3. For example:
http://www.responsibletechnology.org/posts/wp-ontent/uploads/2012/04/Soydamage1.pdf
http://www.i-sis.org.uk/GM_Soy_Linked_to_Illnesses_in_Farm_Pigs.php

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