fish and pets when administering gallipro u00ae according to the art it is normally done in a dose from around 10 4 10 8 cfu g feed commonly 10 5 10 6 cfu g feed or in doses equivalent to normal feed intake kg live weight animal alternatively the bacillus spores may be administered to the animal in one of the following ways a method for screening and isolating a novel bacillus cell as said above the third aspect relates to a method for screening and isolating a novel bacillus cell in the method of the third aspect is selected for a bacillus cell capable of fulfilling the conditions of point i and ii of the first aspect as understood by the skilled person the specific herein detailed described bile resistance and phytase amount assay see e g example 1 herein for bile resistance assay and example 2 herein for phytase assay parameters may be changed to make a alternative screening method that still obtains the main goals as described herein i e a bacillus cell that is capable of fulfilling the conditions of point i and ii of the first aspect in a preferred embodiment bile resistance assay of example 1 is used in step a of the screening method of third aspect and the phytase assay of example 2 is used in step c of the screening method of third aspect in step d of the screening method of third aspect a vegetative bacillus cell is isolated this vegetative bacillus cell may be used to make bacillus spores from accordingly in an embodiment the screening method of third aspect is followed by a extra step e wherein the isolated bacillus vegetative cell of step d is fermented to make from 10 5 to 10 12.