The present invention discloses a new method for preventing and controlling bacterial diseases in salmonid fish using Quillaja extracts, wherein said method comprises administering to salmonid fish an effective amount of a medicinal composition comprising a Quillaja saponaria extract as active ingredient.

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.

A Spampcin.sub.56-86 is provided. A molecular formula of Spampcin.sub.56-86 is C.sub.154H.sub.256N.sub.54O.sub.33S.sub.3, and an amino acid sequence of Spampcin.sub.56-86 is shown in SEQ ID NO: 01.

A Spampcin.sub.56-86 is provided. A molecular formula of Spampcin.sub.56-86 is C.sub.154H.sub.256N.sub.54O.sub.33S.sub.3, and an amino acid sequence of Spampcin.sub.56-86 is shown in SEQ ID NO: 01.

Described herein are methods of producing animal feed made up of oligosaccharide compositions, as well as methods of producing such oligosaccharide compositions and animal feed compositions, and methods of using such animal feed compositions to enhance animal growth.

Described herein are methods of producing animal feed made up of oligosaccharide compositions, as well as methods of producing such oligosaccharide compositions and animal feed compositions, and methods of using such animal feed compositions to enhance animal growth.

The present invention relates to a novel bacteriophage CJ24 (KCCM11462P) and a composition comprising the same as an active component. In addition, the present invention relates to a method for preventing and/or treating infectious diseases caused by avian pathogenic E. coli of birds by using the bacteriophage CJ24 (KCCM11462P) or the composition.

The present invention relates to a novel bacteriophage CJ24 (KCCM11462P) and a composition comprising the same as an active component. In addition, the present invention relates to a method for preventing and/or treating infectious diseases caused by avian pathogenic E. coli of birds by using the bacteriophage CJ24 (KCCM11462P) or the composition.

Provided herein are materials and methods useful for reducing, preventing, and/or inhibiting germination of C. perfringens spores, including methods for inhibiting C. perfringens germination to reduce necrotizing enteritis (NE, also referred to as necrotic enteritis) in animals. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.