I am going to try to make this sucinct as possible, so I'm going to type and then edit it like Kreuger so appologies if theres some rapid train of thought track switches and maybe context that got dropped:
There are different rules for 'stock' animals and for pets. Sheriffs via DAs (via lobbies) are discouraged from all but most aggregious stock animal welfare cases for two reasons.
Firstly, doing it opens the door for PETA crazies to start calling about the KFC chicken farm every hours. Second, the animals seized/processed are not likely to see a better outcome. They most likely just see the slaughter house early. (Also as these are economic assets, there is a case of income loss/civil case to be had. Even if he local department prevails, the suite eats resources and the plaintiff is likely to be judgement proof.)
In cases where its pretty fucking bad, the Sheriff usually just applies threats and connections to get the abusers to sell the animals (to another farmer or the meat processor) or turn them over to a rescue by threats of seizure.
Horses are the only most exception to this rule since in the US they are practically pets, and there are crazy horse people who get really uppity about horse treatment.
anyway, let me apply my experiences in another state to the tranch.
The Tranchers have rescue Alpaca - alpaca already abandoned or turned over. These Alpaca have no where to go. They are starving but not OBVIOUSLY in agony. The rescue should be checking up on them, but for "novelty" livestock like Alpaca... no one cares. Resources are scarce and disproportionately go to horses - likely why the Tranch hosted that rescue horse for a while, trying to get in on the equine grift. So the rescue gives the tranch their free hay and just pretends they are getting take of. Sort of like the foster-care system. Even if south-american specializing vet Dr. Joseph L. Camelidlover was elected sheriff of Tranch County, the usual thing that happens is just an admonishment.
Again, Kiwis have done autistic analysis to show the alpaca are starving. The Sheriff, who is not a trained vet, will roll up and see animals that aren't obviously bleeding or diseased, then shrug and say "Looks fine to me, case closed". The Rescue doesn't want to deal with trying to rehome 100+ alpaca so the most they might do is stop sending fresh ones the Tranch's way; the ones that are currently inside Alpacaschwitz, their fate is already sealed.
unless the tranchers start physically abusing the animals to leaving obviously injured animals, they will keep getting away with it.
anyway, tl;dr
Animal welfare for stock animals is a bitch. Tranch alpaca grift will continue. The ovens at Alpacaschwitz will run day an night. Or rather they would but the Tranchers will probably run out of propane.