the bile salts used in example 1 were prepared mimicking the physiological concentrations and compositions of porcine bile salts as known to the skilled person porcine bile salts compositions may herein be considered as relatively u201c harsh u201d conditions as compared to avian bile salt compositions the term u201c bile salt medium u201d relates to a medium comprising relevant bacillus growth ingredients such as relevant nutrients and bile salt vegetative cell growth point u2014 in bile salt assay u2014 point i of first aspect as said above in relation to point i of first aspect the bacillus spore cells as described herein have a germination and outgrowth from spore to vegetative cell that is so rapid that they reach a vegetative cell growth point of 0 4 od within less than 18 and 19 hours at 4 and 6 mm bile salts respectively as said above the novel dsm 19467 strain reaches the vegetative cell growth point after 14 and 15 hours incubation in 4 and 6 mm bile salt respectively accordingly in a preferred embodiment the bacillus spores reach the vegetative cell growth point after 17 and 18 hours incubation in 4 and 6 mm bile salt under the conditions of point i of first aspect more preferably the bacillus spores reach the vegetative cell growth point after 15 and 16 hours incubation in 4 and 6 mm bile salt under the conditions of point i of first aspect as explained above and shown schematically in fig1 the herein described novel dsm 19467 strain was selected by using the commercially available gallipro u00ae as a starting strain for mutagenesis and selection for rapid outgrowth in presence of bile salt as described.