Exhibit 23.1 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS As independent public accountants, we hereby consent to the incorporation by reference in this Form S-8 Registration Statement for the Heska Corporation 1997 Stock Incentive Plan of our report dated January 16, 1998, included in Heska Corporation's Form S-1 Registration Statement (File No. 333-44835). /s/ ARTHUR ANDERSEN LLP Denver, Colorado February 26, 1998