The invention discloses a green pig feed and a preparation method thereof. The green pig feed comprises the following raw materials: by weight, 50-60 parts of corn, 120-130 parts of
corncob, 5-10 parts of middling power, 3-8 parts of wheat
bran, 50-60 parts of rice
bran, 1-2 parts of
shrimp shell
powder, 1-2 parts of jujube root, 5-8 parts of poplar leaf, 10-20 parts of corn stalks, 4-8 parts of wheat stalks, 0.1-0.2 part of nidus vespae, 1-2 parts of Chinese wolfberry leaf, 1-2 parts of chrysanthemum, 1-2 parts of
amomum tsao-ko, 3-5 parts of vinegar residue, 1-2 parts of
zeolite powder, 1-2 parts of
sunflower flower disc, 1-2 parts of
anoectochilus roxburghii, 1-2 parts of pomegranate leaf, 1-2 parts of chestnut shell, 1-2 parts of wild chrysanthemum, 1-2 parts of red pepper, 2-3 parts of
pear leaf, 3-5 parts of hawthorn seeds, 1-2 parts of
rehmannia glutinosa leaf and 1-2 parts of
catalpa ovate flower. The green pig feed does not contain any
antibiotics, but contains Chinese herbal
medicine compositions. The green pig feed has the functions of
stomach strengthening and
digestion promoting, heat clearing and detoxicating and the like, can help to eliminate endotoxin of pigs, keep the pigs in good growth states, and can prevent diseases of the pigs. Because all of the Chinese herbal
medicine compositions are commonly used medicines of people, the green pig feed has no toxic and side effects, and can improve the pork quality of the pigs and make pork more suitable for the people to eat.