LACTASE FOR USE

The present invention related to lactase for preventing and/or stimulating active immunity against Clostridium perfringens related alimentary tract conditions, especially necro-haemorrhagic enteritis. That is to say, the invention relates to lactase for use in preventing an alimentary tract disorder caused by Clostridium perfringens in a bovine, preventing a Clostridium perfringens alpha-toxin related alimentary tract disorder in a bovine, increasing active immunity against an alimentary tract disorder in a bovine caused by Clostridium perfringens, increasing active immunity against a Clostridium perfringens alpha-toxin related alimentary tract disorder in a bovine and stimulating Clostridium perfringens alpha-toxin antibody production in a bovine, wherein the lactase is orally administered to the bovine subject. The invention also relates to use of lactase for preventing a bovine alimentary tract disorder caused by Clostridium perfringens, preventing a Clostridium perfringens alpha-toxin related alimentary tract disorder in a bovine, increasing active immunity against an alimentary tract disorder in a bovine caused by Clostridium perfringens, increasing active immunity against a Clostridium perfringens alpha-toxin related alimentary tract disorder in a bovine, and stimulating Clostridium perfringens alpha-toxin antibody production in a bovine, wherein the lactase is orally administered to the bovine subject. In addition, the invention relates to a method for providing a dairy-based milk replacer formulation for bovines comprising lactase.