I say you buy some and use some on your pups just incase it doesn't go well
and make your on hypothesis I wouldn't do it to a lot of them just in case something goes wrong but u could be the first on this website to do something like that! it would be cool to see the pics from before and after lets just not get any mutants! gold finger bananas seems to be so genetically modified it mutates on its own sometimes so don't use gold finger cuz that would be cheating
and to actually answer your question no they are not using anything like that in any local supermarket when u have perfect climate so u don't have to regulate it 50 poor workers that get paid dirt constantly pulling bananas and pesticide's being sprayed big corporations don't really care about what they are selling just how cheap they can put it on the shelf's
AND IF THEY DO USE that oxytocin I looked it up its the cheapest thing available so why would they want to spend more money on other adulterants