The reasons I give for not having a butchering facility apply to any other facility that would keep domestic animals. The animals would still need a place to live that would be hard to pick up and move when the vampires got suspiciously youthful-looking for their claimed ages. Also, if the vampires were trying to keep animals alive, they would suck at it. The poor cows would die of stress from having to be around them.
As for your other criticisms: I'm sorry you aren't enjoying the story I have chosen to tell. That's a pity. I suggest you don't waste more of your time on a story you don't like. Hopefully you will be able to find something more worthy of your attention.
Also, if the vampires were trying to keep animals alive, they would suck at it.
Why would vampires put themselves in charge of keeping the animals alive? It's been established that the Cullens have staggering amounts of money. Just find a small, publicly-traded company that does something related to what you're looking for, and buy up a controlling share of the stock. Make some unreasonable demands, ratchet up relevant salaries until those demands start sounding very reasonable indeed, then add layer after layer of nondisclosure agreements just in case. ...
In the vein of the Harry Potter and the Methods of Rationality discussion threads this is the place to discuss anything relating to Alicorn's Twilight fanfic Luminosity. The fanfic is also archived on Alicorn's own website <strike>(warning: white text on black background)</strike>.
Previous discussion is hidden so deeply within the first Methods of Rationality thread that it's difficult to find even if you already know it exists.
Similar to how Eliezer's fanfic popularizes material from his sequences Alicorn is using the insights from her Luminosity sequence.
Spoilers for the fanfic itself as well as the original novels need and should not be hidden, but spoiler protection still applies for any other works of fiction, except for Harry Potter and the Methods of Rationality chapters more than a week old so we can freely discuss similarities and differences.
EDIT: Post-ginormous-spoiler discussion should go to the second thread. (If you have any doubt on whether you have reached the spoiler in question you have not.)