A method and a composition for improving gut micro biota structure, selectively increase a first gut microbiota population while simultaneously decrease a second gut micro biota population in a subject. The first gut micro biota population includes a short-chain fatty acid (SCFA)-producing bacterium and the second gut microbiota population includes an endotoxin-producing bacterium.

Provided are a composition for cooling skin comprising a Phellodendron bark extract, a method of preparing the composition, a skin-improving product comprising the composition and a method of cooling skin by applying the composition to a skin of a subject, wherein the skin needs cooling. The composition prevents a burning sensation in the skin and under the skin and reduces heat generated under the skin and on the skin. The composition includes a Phellodendron bark extract as a main ingredient and further includes an extract of one or more selected from the group consisting of Anemarrhena asphodeloides, Scutellaria baicalensis, Paeonia lactiflora, Dictamnus dasycarpus, Alumen, Dryobalanops aromatic and Mentha arvensis.

Provided are a composition for cooling skin comprising a Phellodendron bark extract, a method of preparing the composition, a skin-improving product comprising the composition and a method of cooling skin by applying the composition to a skin of a subject, wherein the skin needs cooling. The composition prevents a burning sensation in the skin and under the skin and reduces heat generated under the skin and on the skin. The composition includes a Phellodendron bark extract as a main ingredient and further includes an extract of one or more selected from the group consisting of Anemarrhena asphodeloides, Scutellaria baicalensis, Paeonia lactiflora, Dictamnus dasycarpus, Alumen, Dryobalanops aromatic and Mentha arvensis.

Provided are a composition for cooling skin comprising a Phellodendron bark extract, a method of preparing the composition, a skin-improving product comprising the composition and a method of cooling skin by applying the composition to a skin of a subject, wherein the skin needs cooling. The composition prevents a burning sensation in the skin and under the skin and reduces heat generated under the skin and on the skin. The composition includes a Phellodendron bark extract as a main ingredient and further includes an extract of one or more selected from the group consisting of Anemarrhena asphodeloides, Scutellaria baicalensis, Paeonia lactiflora, Dictamnus dasycarpus, Alumen, Dryobalanops aromatic and Mentha arvensis.

A feed additive for swine consists of following ingredients measured by weight: 20-50 sour jujubes, 10-18 radix bupleuri, 6-20 codonopsis pilosula, 10-20 honeysuckles, 10-20 isatis roots, 10-18 chrysanthemums, 6-9 red jujubes, 10-20 myrica rubra and 30-60 cactuses. The disclosure further provides a feed composition for swine with the above feed additive. The above-mentioned feed additive for swine is effective in preventing hog cholera, convenient in use, no toxicity, side effects or medical residue, which benefits human health.

A feed additive for swine consists of following ingredients measured by weight: 20-50 sour jujubes, 10-18 radix bupleuri, 6-20 codonopsis pilosula, 10-20 honeysuckles, 10-20 isatis roots, 10-18 chrysanthemums, 6-9 red jujubes, 10-20 myrica rubra and 30-60 cactuses. The disclosure further provides a feed composition for swine with the above feed additive. The above-mentioned feed additive for swine is effective in preventing hog cholera, convenient in use, no toxicity, side effects or medical residue, which benefits human health.

A feed additive for swine consists of following ingredients measured by weight: 20-50 sour jujubes, 10-18 radix bupleuri, 6-20 codonopsis pilosula, 10-20 honeysuckles, 10-20 isatis roots, 3-6 astragalus propinquus, 10-20 myrica rubra and 30-60 cactuses. The disclosure further provides a feed composition for swine with the above feed additive. The above-mentioned feed additive for swine is effective in preventing hog cholera, convenient in use, no toxicity, side effects or medical residue, which benefits human health.

A feed additive for swine consists of following ingredients measured by weight: 20-50 sour jujubes, 10-18 radix bupleuri, 6-20 codonopsis pilosula, 10-20 honeysuckles, 10-20 isatis roots, 3-6 astragalus propinquus, 10-20 myrica rubra and 30-60 cactuses. The disclosure further provides a feed composition for swine with the above feed additive. The above-mentioned feed additive for swine is effective in preventing hog cholera, convenient in use, no toxicity, side effects or medical residue, which benefits human health.

A feed additive for swine consists of following ingredients measured by weight: 20-50 sour jujubes, 10-18 radix bupleuri, 6-20 codonopsis pilosula, 10-20 honeysuckles, 10-20 isatis roots, 4-8 anemarrhena asphodeloides, 3-6 liquorice, 10-20 myrica rubra and 30-60 cactuses. The disclosure further provides a feed composition for swine with the above feed additive. The above-mentioned feed additive for swine is effective in preventing hog cholera, convenient in use, no toxicity, side effects or medical residue, which benefits human health.

A feed additive for swine consists of following ingredients measured by weight: 20-50 sour jujubes, 10-18 radix bupleuri, 6-20 codonopsis pilosula, 10-20 honeysuckles, 10-20 isatis roots, 4-8 anemarrhena asphodeloides, 3-6 liquorice, 10-20 myrica rubra and 30-60 cactuses. The disclosure further provides a feed composition for swine with the above feed additive. The above-mentioned feed additive for swine is effective in preventing hog cholera, convenient in use, no toxicity, side effects or medical residue, which benefits human health.