EXHIBIT 11.1 ------------ Synbiotics Corporation Computation of Earnings Per Share - -------------------------------------------------------------------------------- Three Months Ended March 31, ------------------------------ 1997 1996 ---------- ---------- Primary Earnings Per Share: Net income per statement of operations $ 830,000 $1,651,000 ========== ========== Weighted average number of shares outstanding 7,485,000 5,911,000 ========== ========== Primary earnings per share $ .11 $ .28 ========== ========== Fully Diluted Earnings Per Share: Net income per statement of operations $ 830,000 $1,651,000 ========== ========== 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 7,485,000 5,911,000 Add-effect of outstanding options (as determined by the application of the treasury method) 7,000 13,000 ---------- ---------- Weighted average number of shares, as adjusted 7,492,000 5,924,000 ========== ========== Fully diluted earnings per share $ .11 $ .28 ========== ========== -1-