Abstract: Disclosed herein are is a novel bacteriophage which has specific bactericidal activity against one or more Salmonella bacteria selected from the group consisting of Salmonella Enteritidis, Salmonella Typhimurium, Salmonella Gallinarum, and Salmonella Pullorum without affecting beneficial bacteria. Disclosed are also compositions, animal feeds or drinking water, cleaners and sanitizers for preventing and treating the infectious diseases caused by Salmonella Enteritidis, Salmonella Typhimurium, Salmonella Gallinarum or Salmonella Pullorum including salmonellosis, Salmonella food poisoning, Fowl Typhoid, and Pullorum disease or for controlling the salmonella bacteria.

Abstract: The present invention relates to a microorganism producing L-methionine precursor, O-succinylhomoserine, and a method of producing L-methionine precursor using the microorganism,

Abstract: The present invention relates to a method for producing L-methionine and organic acid comprising the following steps: Step 1) preparing a strain producing L-methionine precursor and producing L-methionine precursor by the fermentation of the strain; Step 2) producing L-methionine and organic acid by the enzyme reaction process with the L-methionine precursor as a substrate, and microorganism strains used in each step.

Abstract: The present invention relates to a novel bacteriophage, more particularly, a bacteriophage that has a specific bactericidal activity against one or more Salmonella bacteria selected from the group consisting of Salmonella Enteritidis, Salmonella Typhimurium, Salmonella Gallinarum, and Salmonella Pullorum. Further, the present invention relates to a composition for the prevention or treatment of infectious diseases including salmonellosis and Salmonella food poisoning caused by Salmonella Enteritidis or Salmonella Typhimurium, Fowl Typhoid caused by Salmonella Gallinarum, and Pullorum disease caused by Salmonella Pullorum, comprising the bacteriophage as an active ingredient. Furthermore, the present invention relates to a feed additive, drinking water, a cleaner and a sanitizer, comprising the bacteriophage as an active ingredient.

Abstract: The present invention relates to a novel bacteriophage, more particularly, a bacteriophage that has a specific bactericidal activity against Salmonella typhimurium, Salmonella gallinarum, or Salmonella pullorum, a composition for the prevention or treatment of infectious diseases including salmonellosis and Salmonella food poisoning caused by Salmonella typhimurium, Fowl typhoid caused by Salmonella gallinarum, and Pullorum disease caused by Salmonella pullorum, which comprises the bacteriophage as an active ingredient, and an animal feed, drinking water, cleaner, and sanitizer which comprise the bacteriophage as an active ingredient.

Abstract: The present invention relates to a novel bacteriophage, more particularly, a bacteriophage that has a specific bactericidal activity against Fowl Typhoid causing Salmonella Gallinarum (SG) and Pullorum disease-causing Salmonella Pullorum (SP). Further, the present invention relates to a composition for the prevention or treatment of infectious diseases caused by Salmonella Gallinarum or Salmonella Pullorum, comprising the bacteriophage as an active ingredient. Furthermore, the present invention relates to feed and drinking water for poultry, sanitizers and cleaners, comprising the bacteriophage as an active ingredient.

Abstract: The present invention relates to a microorganism producing L-methionine precursor, O-succinylhomoserine, and a method of producing L-methionine precursor using the microorganism,

Abstract: The present invention relates to a microorganism producing L-methionine precursor, O-acetylhomoserine, and a method of producing L-methionine precursor using the microorganism.