Antimicrobial enzymes in animal feed

Details Antimicrobial enzymes in animal feed Antimicrobial enzymes in animal feed

A - Human Necessities

23

K

A23K 1/16 (2006.01) A23K 1/165 (2006.01) A23K 1/18 (2006.01)

Patent

CA 2346075

The use of two antimicrobial enzymes for use in feed for monogastric or non- ruminant animals is disclosed to improve growth and feed conversion ratio of poultry, pigs, veal calves and fish. This may enable the farmer to avoid the use of growth promoting antibiotics. The enzymes have antibacterial activity and one can disrupt the cell wall of bacteria (eg. lysozyme) with another producing a compound toxic to bacteria (eg. oxidase). The efficacy of these enzymes is enhanced by the inclusion of a polyunsaturated fatty acid (PUFA) such as arachidonic acid.

La présente invention concerne l'utilisation d'enzymes antimicrobiennes dans des aliments pour animaux monogastriques ou non ruminants de façon à améliorer l'indice de croissance et de transformation de la volaille, des cochons, des veaux de lait et des poissons. Cette utilisation peut éviter aux agriculteurs d'utiliser des antibiotiques stimulateurs de la croissance. Les enzymes de cette invention ont une action antibactérienne et l'une d'elle (par exemple la lysozyme) peut détruire la paroi cellulaire des bactéries, alors qu'une autre (par exemple l'oxydase) produit un composé toxique pour les bactéries. Par ailleurs, on augmente l'efficacité de ces enzymes en incorporant un acide gras polyinsaturé (AGP) tel que l'acide arachidonique.

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