The present invention relates to a Myoviridae bacteriophage Esc-CHP-2 that is isolated from the nature and can kill specifically enteropathogenic E. coli strains, which has a genome represented by the nucleotide sequence of SEQ. ID. NO: 1 (Accession NO: KCTC 12661BP), and a method for preventing and treating the infections of enteropathogenic E. coli using the composition comprising said bacteriophage as an active ingredient.

Present invention relates to the use of hydroxytyrosol (HT), maslinic acid (MA) and oleanolic acid (OA) as additive in feed for a domesticated animal at very early days of life or from birth. The invention provides an additive with particular amounts of these three ingredients and an additivated feedstuff ready to use comprising said additive.

Present invention relates to the use of hydroxytyrosol (HT), maslinic acid (MA) and oleanolic acid (OA) as additive in feed for a domesticated animal at very early days of life or from birth. The invention provides an additive with particular amounts of these three ingredients and an additivated feedstuff ready to use comprising said additive.

The present invention relates to a Lactobacillus plantarum capsule and use thereof, and belongs to the technical field of microbe feed additives. The Lactobacillus plantarum capsule consists of a wall material, Lactobacillus plantarum, a cryoprotectant, stachyose, and Morchella esculenta zymolytic powders; wherein the wall material is composed of zymolytic soybean protein isolate, chitosan, xanthan gum, carrageenin, glycerin and trehalose, and when formulated into a mixed solution, the above substances have concentrations of 7 to 10% zymolytic soybean protein isolate, 1 to 2% chitosan, 1 to 3% xanthan gum, 0.1 to 0.5% carrageenin, 0.3 to 1% glycerin, and 0.5 to 2% trehalose. The Lactobacillus plantarum capsule of the present invention enhances resistance of the capsule to gastric acid, has very good enteric solubility, besides, it can effectively inhibit the growth of pathogenic germs to improve immunity, decrease incidence of diseases in livestock and poultry, and improve the breeding quality and benefit.

The present invention relates to a Lactobacillus plantarum capsule and use thereof, and belongs to the technical field of microbe feed additives. The Lactobacillus plantarum capsule consists of a wall material, Lactobacillus plantarum, a cryoprotectant, stachyose, and Morchella esculenta zymolytic powders; wherein the wall material is composed of zymolytic soybean protein isolate, chitosan, xanthan gum, carrageenin, glycerin and trehalose, and when formulated into a mixed solution, the above substances have concentrations of 7 to 10% zymolytic soybean protein isolate, 1 to 2% chitosan, 1 to 3% xanthan gum, 0.1 to 0.5% carrageenin, 0.3 to 1% glycerin, and 0.5 to 2% trehalose. The Lactobacillus plantarum capsule of the present invention enhances resistance of the capsule to gastric acid, has very good enteric solubility, besides, it can effectively inhibit the growth of pathogenic germs to improve immunity, decrease incidence of diseases in livestock and poultry, and improve the breeding quality and benefit.

Isopropoxy-phenylguanidine series salt as shown by the Formula (I) and an application thereof in preparing growth promoters for animal feed, wherein R is DL-lactic acid, methanesulfonic acid, 2-hydroxyethanesulfonic acid, citric acid, tartaric acid, benzoic acid, succinic acid, fumaric acid, maleic acid, acetic acid, sulfuric acid, phosphoric acid, or oxalic acid.

##STR00001##

Isopropoxy-phenylguanidine series salt as shown by the Formula (I) and an application thereof in preparing growth promoters for animal feed, wherein R is DL-lactic acid, methanesulfonic acid, 2-hydroxyethanesulfonic acid, citric acid, tartaric acid, benzoic acid, succinic acid, fumaric acid, maleic acid, acetic acid, sulfuric acid, phosphoric acid, or oxalic acid.

##STR00001##

Disclosed herein are compositions and methods for modulating a macrolide antimicrobial, modulating an immune function, increasing the effectiveness of an antibiotic, and/or increasing the number and effectiveness of alveolar macrophages in treating a vertebrate animal. The method comprises feeding to the animal a feed composition comprising (1, 3), (1, 6), beta-glucans and optionally mannans to increase the number of alveolar macrophage cells, and administering a macrolide antibiotic to the animal.

Disclosed herein are compositions and methods for modulating a macrolide antimicrobial, modulating an immune function, increasing the effectiveness of an antibiotic, and/or increasing the number and effectiveness of alveolar macrophages in treating a vertebrate animal. The method comprises feeding to the animal a feed composition comprising (1, 3), (1, 6), beta-glucans and optionally mannans to increase the number of alveolar macrophage cells, and administering a macrolide antibiotic to the animal.

The present invention relates to a Myoviridae bacteriophage Esc-COP-1 that is isolated from the nature and can kill specifically Shigatoxin-producing type F18 E. coli strains, which has a genome represented by the nucleotide sequence of SEQ. ID. NO: 1 (Accession NO: KCTC 12662BP), and a method for preventing and treating the infections of Shigatoxin-producing type F18 E. coli using the composition comprising said bacteriophage as an active ingredient.