Talking to Corporal William Farber about his meat supply at Camp McCarran reveals that the NCR doesn't have a steady supply of fresh meat for the troops stationed there. He asks if you would act as an emissary to strike up a deal with some merchants around the Mojave.
Ask Blake at the Crimson Caravan Company, Ruby Nash in Primm or Fitz at the Grub n' Gulp Rest Stop about the possibility of meat supply contracts with Camp McCarran. Only one must be asked about the deal, the others can be skipped. Blake seems to be the primary choice, as he has a Speech check of 70, allowing a reduced price on the meat for the NCR, and a Barter check of 50, to convince Blake to trade one piece of meat for two vegetables or bottles of water.
You must now enter Vault 22 to acquire the food additive (if the player hasn't already) in order to make the meat Farber receives actually palatable. After doing so, return to Farber and let him know about the meat deal.
Bugs[]
PCPlayStation 3Xbox 360 You are unable to talk to either Ruby Nash or Fitz about the food supplies.
PCXbox 360 Even if Farber says he will take the food additive and begins testing it immediately, it remains in the players inventory.
PC Fixing the food processor (for Not Worth a Hill of Corn and Beans) before you speak with him will cause the dialogue to trade the food additive to him not to appear.