Livestock or farm animals were any domesticated animal kept and bred for their meat, eggs, milk, fur, leather, and wool.
In 2151, during a visit to a Menk village, Doctor Phlox wondered where they were getting their food, as he hadn't seen any crops or livestock. (ENT: "Dear Doctor")
The sentient species known as the Kelpiens were kept as livestock by the Ba'ul. (DIS: "The Vulcan Hello")
In 2365, Jean-Luc Picard marveled at the fact that live specimens of livestock, including cattle, chickens and pigs, had been brought aboard the colony ship SS Mariposa, as opposed to their DNA. (TNG: "Up The Long Ladder")