From your first citation
@LoveChickens27 (for which the address you pasted was clipped, btw; it needs a h at the front; proof read your stuff before posting to avoid such errors in future): "Results from this study represent the first quantitative on-farm data relating to feed fermentation for poultry..." Oddly, this Final Report is not dated, but it says the experimental work went on in 2019, so it's quite recent. As Altairsky pointed out, they used a whole grain feed not an ultra-processed pellet:
"3. Methods
All diets in this study were prepared from the same complete mixed ration, a whole-grain mash"
And the website you linked to is not an article. It refers in a vague way to articles in journals like Poultry Science but it doesn't actually give any details or references, and it is apparent from reading the website that the author hasn't actually read them or doesn't understand them.
So you also need to learn to distinguish between an article and a webpage. Start with the clear distinction that a webpage is something on which anyone can write anything, including people who know zero about what they presume to write on. An article in a proper journal, by contrast, has been written by someone who specialises in the topic they write on, includes a section on methods where they will, for example, spell out precisely what feed they fermented (as the SARE paper does, but the website does not); it will have been read by at least 2 other experts on the topic, and it will probably have been revised on the basis of their comments on the first draft submitted BEFORE the final version was published in the journal.
Research is like statistics: junk in, junk out.