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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 HxXhhpdHid+LAAXDukOrUOK8iIX2e1b5Cc8y1+qhFMJO+uDqaAUtYB1mkyb8dvTO
 fj8XM56e1kvTUuGlyV81wg==

<SEC-DOCUMENT>0001237648-04-000113.txt : 20041004
<SEC-HEADER>0001237648-04-000113.hdr.sgml : 20041004
<ACCEPTANCE-DATETIME>20041004144438
ACCESSION NUMBER:		0001237648-04-000113
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040930
FILED AS OF DATE:		20041004
DATE AS OF CHANGE:		20041004

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DEMARSE ELISABETH H
		CENTRAL INDEX KEY:			0001204900

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	333-72155
		FILM NUMBER:		041061987

	BUSINESS ADDRESS:	
		STREET 1:		BANKRATE INC
		STREET 2:		11 EAST 44TH STREET SUITE 1200
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10017

	MAIL ADDRESS:	
		STREET 1:		BANKRATE INC
		STREET 2:		11 EAST 44TH STREET SUITE 1200
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10017

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HESKA CORP
		CENTRAL INDEX KEY:			0001038133
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				770192527
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1613 PROSPECT PARKWAY
		CITY:			FORT COLLINS
		STATE:			CO
		ZIP:			80525
		BUSINESS PHONE:		9704937272

	MAIL ADDRESS:	
		STREET 1:		1613 PROSPECT PARKWAY
		CITY:			FORT COLLINS
		STATE:			CO
		ZIP:			80525
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>edgardoc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2004-09-30</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001038133</issuerCik>
        <issuerName>HESKA CORP</issuerName>
        <issuerTradingSymbol>HSKA</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001204900</rptOwnerCik>
            <rptOwnerName>DEMARSE ELISABETH H</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1613 PROSPECT PARKWAY</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>FORT COLLINS</rptOwnerCity>
            <rptOwnerState>CO</rptOwnerState>
            <rptOwnerZipCode>80525</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <ownerSignature>
        <signatureName>Elisabeth DeMarse</signatureName>
        <signatureDate>2004-09-30</signatureDate>
    </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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