Great art, great theme... almost-perfect execution that just needs a little more thought in order to be fully Warden-friendly.
Firstly, superb idea to use a factory farm as a setting, taking real-world horror and a source of actual distress and anxiety and turning it into a sci-fi horror scenario. There'd be more room to expand on the implied-mistreatment aspects in a zine format but you did what you could in the space without sacrificing other things.
The most confusing thing I encountered is that you use a lot of letters that I didn't see explained anywhere. After some thought, I decided that it must be G = General staff, E = Executive, and S = Security, and the indicators by locked areas tells you which type of NPC could let you in. However, that really needs to be explained somewhere, ideally in an eye-catching text box, as it's crucial to understanding the rest of the text. (EDIT: After reading other comments, I see that there is in fact such a box, it's just not very eye-catching and buried away on the right side of the spread, inexplicably as part of the Orbital Transfer Station section. Best solution might be to design three icons instead and explain them immediately on the flap, as they're used throughout the module.)
What I felt was missing from the content was more information about the nature of the barricades and how to handle the stampedes. Also what the surrounding area is like if the players decide to venture out and take the fight to the cattle in some way. That would be easier to explore in a zine format but maybe you don't need all four D10 tables and could sacrifice one for a little text block about the environs and how the stampedes play out.
Some aspects of the graphic design aren't quite up to the standards of the illustrations... the text is wall-like and uniform, often crowded up against other elements. The perspective of the animal pens on the map isn't quite right (the layers are staggered towards us when I assume they're meant to be stacked vertically), etc.
Anyway, this is one that would make my shortlist for Best in Show, and that I'll probably try running at some point. Great work.