Thursday, February 7, 2013

Roundup Kills Beneficial Gut Bacteria While Harmful Bacteria are Resistant

This last December a study was published that looked at the effect of Glyphosate (Roundup is a trademark name glyphosate is known by) on the gut bacteria of chickens. Here are the results:
A study was undertaken to determine the real impact of glyphosate (on potential pathogens and beneficial members of poultry bacteria in vitro. The results showed that highly pathogenic bacteria such as Salmonella Entritidis, Salmonella Gallinarum, Salmonella Typhimurium, Clostridium perfringens and Clostridium botulinum are highly resistant to glyphosate. However, most of beneficial bacteria as Enterococcus faecalis, Enterococcus faecium, Bacillus badius, Bifidobacterium adolescentis and Lactobacillus spp. were found to be moderate to highly susceptible. A reduction of beneficial bacteria in the gastrointestinal tract by ingestion of glyphosate could disturb the normal gut bacterial community. Also, the toxicity of glyphosate to the most prevalent Enterococcus spp. could be a significant predisposing factor that is associated with the increase in C. botulinum-mediated diseases by suppressing the antagonistic effect of these bacteria on clostridia.
This is just one more reason that you might want to reconsider if you eat meat that is not raised organically.  That glyphosate they ingest into their body goes into yours.

Additionally the poultry fed GE (genetically engineered corn/soy would have unhealthy changes in gut flora that threatens the health of the chickens, as well as those consuming them. Varieties of bacteria such as Salmonella and Clostridium are dangerous pathogens for humans.

This study suggests that chickens exposed to glyphosate may become breeding grounds for Botulilsm, Salmonella and other pathogenic organisms.
For those of you with farms who feed their animals conventional feed, you might want to rethink it. A lot of conventional feed is GMO and is grown with immense amounts of glyphosate. Who wants to feed that to their animals? Now you know it can possibly kill off their good gut microbes. If your animals are having digestive problems, look to their food.


  1. Thank you for sharing this study! I hope further studies continue to examine the downstream effect.

    I've been raising chickens with my partner for the past few years in our backyard. Last fall, several people in our area noticed that their chickens stopped laying and appeared very stressed. Because we only raise 6 hens, a bag of feed lasts a long time. We had a new onset of earthquakes in our area and thought that might have been the issue. Come to find out--it was our feed. It finally dawned on us the chickens had been eating less and that maybe we needed to try a different brand of feed. Once we did, they began looking and eating better, as well as coming back into lay. In our research of the problem, we discovered that some feed companies are using ethanol byproducts to make feed. The study you shared suggests just how complicated chemical farming and animal food production can be. I'll be sharing this study with my partner. Thank you so much!

    1. Thank you for sharing your experience with us. There are a lot of companies taking waste that should be composted and trying to repurpose it. However, the healthy nutrients in such repurposed items as ethanol byproducts, have been removed and using them as feed will certainly lead to unhealthy animals. We do all have to be vigilant. It behooves us to be very careful of where we purchase products and to support people who are selling organic, healthy feed. I always remind people that what we feed our farm animals often ends up inside our own cells eventually when we eat the milk, eggs or meat.
      Thanks again for sharing. I can't believe I am reading this response from you 3 years later.