Synbiotics Corporation EXHIBIT 11.1 ------------ Computation of Earnings Per Share - ----------------------------------------------------------------------------- Three Months Ended Six months Ended June 30, June 30, -------- -------- 1997 1996 1997 1996 ---------- ---------- ---------- ---------- Primary Earnings Per Share: Net income per statement of operations $ 14,000 $1,519,000 $ 844,000 $3,169,000 ========== ========== ========== ========== Weighted average number of shares outstanding 7,505,000 6,028,000 7,499,000 5,968,000 ========== ========== ========== ========== Primary earnings per share $ .00 $ .25 $ .11 $ .53 ========== ========== ========== ========== Fully Diluted Earnings Per Share: Net income per statement of operations $ 14,000 $1,519,000 $ 844,000 $3,169,000 ========== ========== ========== ========== Reconciliation of weighted average number of shares per primary computation above, to amount used for fully diluted computation: Weighted average number of shares outstanding, per primary computation 7,505,000 6,028,000 7,499,000 5,968,000 Add-effect of outstanding options (as determined by the application of the treasury method) 19,000 38,000 13,000 26,000 ---------- ---------- ---------- ----------- Weighted average number of shares, as adjusted 7,524,000 6,066,000 7,512,000 5,994,000 ========== ========== ========== =========== Fully diluted earnings per share $ .00 $ .25 $ .11 $ .53 ========== ========== ========== =========== -17-