//
you're reading...

Collection

Carman-Vlieger “Pig” Study Links

A long-term toxicology study on pigs fed a combined genetically modified (GM) soy and GM maize diet [LINK]

Abstract
A significant number of genetically modified (GM) crops have been approved to enter human food and animal feed since 1996, including crops containing several GM genes ‘stacked’ into the one plant. We randomised and fed isowean pigs (N=168) either a mixed GM soy and GM corn (maize) diet (N=84) or an equivalent non-GM diet (N=84) in a longterm toxicology study of 22.7 weeks (the normal lifespan of a commercial pig from weaning to slaughter). Equal numbers of male and female pigs were present in each group. The GM corn contained double and triple-stacked varieties. Feed intake, weight gain, mortality and blood biochemistry were measured. Organ weights and pathology were determined post-mortem. There were no differences between pigs fed the GM and non-GM diets for feed intake, weight gain, mortality, and routine blood biochemistry measurements. The GM diet was associated with gastric and uterine differences in pigs. GM-fed pigs had uteri that were 25% heavier than non-GM fed pigs (p=0.025). GM-fed pigs had a higher rate of severe stomach inflammation with a rate of 32% of GM-fed pigs compared to 12% of non-GM-fed pigs (p=0.004). The severe stomach inflammation was worse in GM-fed males compared to non-GM fed males by a factor of 4.0 (p=0.041), and GM-fed females compared to non-GM fed females by a factor of 2.2 (p=0.034).

Responses:

GMO pigs study – more junk science | Mark Lynas

“My judgement is that, as with Seralini, this study subjects animals to inhumanely poor conditions resulting in health impacts which can then be data-mined to present ‘evidence’ against GMO feeds. Most damning of all, close to 60% of both sets of pigs were suffering from pneumonia at the time of slaughter – another classic indicator of bad husbandry. Had they not been slaughtered, all these pigs might well have died quickly anyway. No conclusions can be drawn from this study, except for one – that there should be tighter controls on experiments performed on animals by anti-biotech campaigners, for the sake of animal welfare.”

Pigs in the real world — feed them different diets, measure many health parameters, some with show differences– but what does it all mean? | GMO Pundit a.k.a. David Tribe
Statement from Biotechnology Industry Organization (BIO) on the Carman-Vlieger “Pig” Study | BIO
The evidence of GMO harm in pig study is pretty flimsy | Control Freaks
From ‘I smell a rat’ to ‘when pigs fly’, bad science makes its rounds | Cami Ryan
Scientific reasoning paradoxically indicates that Carman et al 2013 may have confirmed — yet again — that GM grain is safer than non-GM | GMO Pundit a.k.a. David Tribe
Pollan and Bittman, the Morano and Milloy of GMO anti-science | denialism blog
Pigs, GMOs & Bullshit | Random Rationality
GMO Statistics Part 37. First, start with a single, pre-stated hypothesis to test. If you search among a long, open list of alternative hypothesis created after seeing the data, standard stats tests are wrong. | GMO Pundit a.k.a. David Tribe
Something Smells, and It’s Not the Pigs | Beyond the Rows
The New Pig Study Gets An “F” In Science | SLEUTH 4 HEALTH
Lack of care when choosing grains invalidates pig feeding study | Biology Fortified, Inc.
Where are the Tumors? | Illumination
Full Statement by Professor Robert Friendship, University of Guelph on Study by Carman et al on Feeding of Genetically Modified Corn and Soybeans to Pigs | Terry Daynard’s Blog
More bad science in the service of anti-GMO activism | Science-Based Medicine
New study shows how not to use statistics | Inexact Change
Bad science in the paper ‘A long-term toxicology study on pigs fed a combined genetically modified (GM) soy and GM maize diet’ | Myles Power (powerm1985)
• ▶ Bad Science in Australian Pig Feed Study – Myles Power, YouTube

Discussion

Trackbacks/Pingbacks

  1. […] in context, at the very least. Better still the opposing view should be included. For instance, the post on the recent pig study, which indicated grave safety concerns was dismissed in the following […]