CERTIFICATE OF AMENDMENT                Exhibit 3.1.1
                                      OF                           -------------
                           ARTICLES OF INCORPORATION
                                      OF
                            SYNBIOTICS CORPORATION



Kenneth M. Cohen and Michael K. Green certify that:

1.   They are the president and secretary, respectively, of Synbiotics
     Corporation, a California corporation.

2.   Article FOURTH of the Articles of Incorporation of this corporation is
     amended in its entirety to read as follows:


     "FOURTH:  The corporation is authorized to issue two classes of stock, to
               be designated, respectively, "Common Stock" and "Preferred
               Stock".  The total number of shares which the corporation is
               authorized to issue is 49,800,000 shares.  24,800,000 shares
               shall be Common Stock and 25,000,000 shares shall be Preferred
               Stock.

               The Preferred Stock may be issued from time to time in one or
               more series.  The Board of Directors is hereby authorized to fix
               or alter the dividend rights, dividend rate, conversion rights,
               voting rights, rights and terms of redemption (including sinking
               fund provisions), redemption price or prices, and the liquidation
               preferences of any wholly unissued series of Preferred Stock, and
               the number of shares constituting any such series and the
               designation thereof, or any of them; and to increase or decrease
               the number of shares of any series subsequent to the issuance of
               shares of that series, but not below the number of shares of such
               series then outstanding.  In case the number of shares of any
               series shall be so decreased, the shares constituting such
               decrease shall resume the status that they had prior to the
               adoption of the resolution originally fixing the number of shares
               of such series."

3.   The foregoing amendment and restatement of articles of incorporation has
     been duly approved by the Board of Directors.

4.   The foregoing amendment of the  Articles of Incorporation has been duly
     approved by the required vote of shareholders in accordance with Section
     902 of the California Corporations Code.  The current total number of
     outstanding shares of the corporation is 8,644,310 shares of Common Stock.
     (No shares of Series B Common Stock are outstanding).  The number of shares
     voting in favor of the amendment equaled or exceeded the vote required.
     The percentage vote required was more than 50 percent of all outstanding
     shares.  No shares of Preferred Stock are outstanding.

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We further declare under penalty of perjury under the laws of the State of
California that the matters set forth in this certificate are true and correct
of our own knowledge.


DATED:  July 30, 1998

                                                     /s/ Kenneth M. Cohen
                                                     ---------------------------
                                                     Kenneth M. Cohen, President



                                                     /s/ Michael K. Green
                                                     ---------------------------
                                                     Michael K. Green, Secretary

                                      -2-