m butyricum i e freund 39 s complete adjuvant 4 freund 39 s oil emulsion low 10 1 9 m butyricum5 freund 39 s oil emulsion with gmdp 100 1 66 freund 39 s oil elmusion with gmdp 10 2 37 freund 39 s oil elmusion with gmdp 1 4 28 gmdp in water 0 1 1 59 gmdp in water 0 5 3 710 gmdp in water 1 0 4 511 gmdp in water 5 3 712 gmdp in water 10 2 813 gmdp in water 100 1 314 gmdp in water 500 0 715 mdp in water 0 1 1 416 mdp in water 1 1 817 mdp in water 10 1 518 mdp in water 100 0 9______________________________________ entry 1 in the table sets the reference for adjuvant activity in this case the antigen dnp bsa is injected into the mouse together with water and the resulting antibody titer is termed the stimulation index and given the reference value 1 00 for water entry 2 in the table shows that if the antigen is injected mixed with freund 39 s oil emulsion a substantially higher yield of antibodies is obtained since the stimulation index is 1 8 i e the antibody titer is 1 8 times higher than for water entry 3 shows the most favourable value obtained with freund 39 s complete adjuvant including a standard dose of 100 u03bcg of m butyricum the stimulation index has the value of 3 4 i e 3 4 times.