To me Abenardini’s link ( http://waddl.vetmed.wsu.edu/docs/librariesprovider10/avian-lab-puyallup/poultry-institute/2013/07_hermes2013-so-whats-so-bad-about-soybean-presentation.pdf?sfvrsn=2
) is a summary of pros and cons from an internet research.
I believe Plate 12 gives Dr. Hermes conclusion from that search.
Research consensus is that Soy is safe.
There will always be skeptics of technology
Plate 10 has this quote, talking about broilers.
“Chicken (sic) are GENETICALLY MODIFIED with hormones, carcinogens, GMOs, corn pills, arsenic and drugs so they become LARGER FASTER and as a result they often CRIPPLE under their own weights”
That is so false it’s not even funny. Genetically modifying chickens with corn pills? Really? Where do people come up with this stuff? The other stuff is also false. Yet people will believe anything they want to believe. Commercial broilers and commercial egg laying hybrids were developed by selective breeding, not GMO technology. That is unless you consider selective breeding to be Genetic Modification. Practically everything you eat that is labelled Non-GMO has been developed by selective breeding. Fruits, vegetables, meats. That’s why you have so many different varieties of tomatoes, peppers, lettuce, apples, and different breeds of cattle.
Caleb, in my opinion the soybeans are safe. I would use them. I don’t know what volume you have but I’d feed them in moderation like any other treat. What is moderation? Treats should form no more than 10% of their daily diet or you upset their “balanced diet”. How do you measure 10%? Good question. A rule of thumb is that they can clean it up in about 15 minutes. You are going to have to do some guessing.
I would follow Abenardini’s first link to the Mississippi State article and cook them first. That’s a reasonable precaution.