Original meaning: set up fences to raise pigs with grain, such as tapirs, and keep tapirs in captivity with grain. -"Shuowen" is wine. -On the case of the Book of Rites and Music. -"The Book of Rites and the Moon Order" all mean this.
1)
Grain-fed domestic animals such as pigs and dogs. To distinguish it from grazing cattle and sheep.
People eat humble food. -"Zhuangzi's Theory of Homogeneous Things"
(2)
Another example: grass (grass, refers to eating grass; Tapirs refer to the mouths of animals that eat grains, such as dogs and tapirs. Affiliation (generally livestock); Kay Long Xing (an ancient famous horse)