February 9, 2010


Mr. Jeffrey Riedler
Assistant Director
Securities and Exchange Commission
Division of Corporate Finance
Washington, DC  20549



Re:  Techne Corporation
     Form 10-K for the Year Ended June 30, 2009
     DEF 41A filed September 22, 2009
     Supplemental response dated December 29, 2009
     File No. 000-17272



Dear Mr. Riedler:

This letter is in response to the comment letter received by us dated January
28, 2010, concerning our response, dated December 29, 2009, to your comment
letter dated December 15, 2009.

In connection with this response, the Company acknowledges that:

  -  the Company is responsible for the adequacy and accuracy of the
     disclosures in the filing;

  -  staff comments or changes to disclosure in response to staff comments do
     not foreclose the Commission
     from taking any action with respect to the filing; and

  -  the Company may not assert staff comments as a defense in any proceeding
     initiated by the Commission  or any person under federal securities laws
     of the United States.


COMMENT AND RESPONSE:

Definitive Proxy Statement


Performance-Based Bonus Plan

1.  Comment:  We note your response to comment 4 and reissue the comment in
    part.  The Compensation Discussion and Analysis still does not disclosure
    the budgeted revenues or the specific individual performance objectives the
    Executive Compensation Committee considers to determine your executive
    officers' bonus payments.  Please provide us with draft disclosure for your
    2010 proxy statement which provides the following

    -  A more detailed specific description and quantification of each of the
       specific individual and corporate goals and performance objectives;
    -  Confirmation that you will discuss the achievement of the objectives;
       and
    -  A discussion of how the level of achievement will affect the actual
       bonuses to be paid.

    To the extent that these criteria are quantified, the discussion in your
    proxy statement should also be quantified.


    Response:  Revised disclosure for the Company's performance-based bonus
    plan to be included in the Company's 2010 proxy statement follows (subject
    to changes to the executive bonus plan, if any, when the final proxy is
    drafted in September 2010).  The Company confirms it will discuss
    achievement of objectives by disclosing the percentage of accomplishment:


       Performance-based bonus plan.  Under the Company's Executive Officers
    Incentive Bonus Plan, each executive officer may earn a potential bonus of
    up to 40% of his or her annual salary.  The eligible bonus each executive
    officer could earn for fiscal 2010 was:  Mr. Oland - $101,640, Mr. Melsen -
    $110,000 and Mr. Veronneau - $67,000.

       The Plan provides that up to 70% of the eligible bonus is based upon
    achieving the Company's budgeted revenue and earnings for the fiscal year
    and up to 30% of the eligible bonus is based upon achievement of
    qualitative personal goals set for each named executive officer.  The
    Executive Compensation Committee believes this bonus plan focuses the
    executives on sustaining high quality revenue growth, bringing new products
    to market, increasing market share and expanding market presence, as well
    as balancing increased research and development with expense control.

       The Company's Board of Directors reviews, discusses and recommends
    changes to a preliminary operating plan and budget for the next fiscal year
    at its annual April meeting.  The final fiscal year operating plan and
    budget is discussed, reviewed and approved at the annual July meeting of
    the Board of Directors.  The Board of Directors considers both historical
    and prospective factors, including the competitive market, economic trends,
    and changes in government regulations and funding, when establishing
    budgeted revenue and earnings for a fiscal year. Bonuses are awarded on a
    prorated basis if revenue and earnings achieved average between 85% and
    100% of budgeted revenue and earnings.  Budgeted revenues and earnings for
    fiscal 2010 were $_______ and $________, respectively.  Based upon actual
    revenues and earnings for fiscal 2010 of $______ and $________,
    respectively, the Executive Compensation Committee has determined that the
    Company's revenues and earnings were an average of __% of budget for fiscal
    2010.  Therefore, each executive officer earned __% (__% of budgeted
    revenues and earnings achieved times 70%) of his eligible bonus for fiscal
    2010.

       The personal goals for the named executive officers are generally
    qualitative in nature and position-specific.  These personal goals are
    established annually by the Executive Compensation Committee taking into
    account each executive's responsibilities at the Company and the
    recommendations of the Chief Executive Officer as to the executives who
    report to him.  Following each fiscal year end, the Executive Compensation
    Committee assesses the achievement of the personal goals by each named
    executive officer, which assessment includes the recommendations of the
    Chief Executive Officer as to the achievement of the personal goals of the
    executives who report to him.

       The personal goals set for fiscal 2010 for Mr. Oland related to:

       -  accomplishment of the Company's strategic objectives;
       -  succession planning;
       -  leadership development; and
       -  personnel matters.

       The Compensation Committee determined that Mr. Oland met __% of his
    personal goals and, therefore, earned an additional __% of his eligible
    bonus (___% of personal goals achieved times 30%).

       The personal goals set for fiscal 2010 for Mr. Melsen related to:

       -  objectives within the information systems function, including
          transition of department leadership, improvement of service levels
          and reduction in consulting costs;
       -  the management of BiosPacific, Inc.,  the Company's sales subsidiary
          that services diagnostic customers, including succession planning and
          achievement of financials goals;
       -  objectives within the research and development function, including
          administrative support, analysis of economic opportunities  and
          communication and enhancement of knowledge regarding Company products
          and processes; and
       -  objectives within the accounting and finance and facilities functions,
          including leadership development and operational efficiencies

       The Compensation Committee, with input from the Chief Executive Officer,
    determined that Mr. Melsen met __% of his personal goals and, therefore,
    earned an additional __% of his eligible bonus (___% of personal goals
    achieved times 30%).

       The personal goals set for fiscal 2010 for Mr. Veronneau related to the
    management of the Company's Hematology Division, including:

       -  the achievement of division revenue and pre-tax earnings and cost of
          goods targets of $_____, $_____, and $______, respectively;
       -  the introduction of new hematology products;
       -  the improvement of quality control programs;
       -  regulatory compliance; and
       -  personnel matters

       The Compensation Committee, with input from the Chief Executive Officer
    of the Company, determined that Mr. Veronneau met __% of his personal goals
    and, therefore, earned an additional __% of his eligible bonus (__% of
    personal goals achieved times 30%).

       The annual bonus is paid 50% in cash and 50% in stock options.  The
    officer may elect to exchange all or a part of the cash portion of the bonus
    for additional stock options. If such an election is made, the officer is
    entitled to 1.7 times the value of the cash bonus in options. The number of
    options each executive officer receives is calculated based on the dollar
    value of the portion of the annual bonus to be paid in stock options divided
    by the closing share price at the date of grant.  The options are granted
    under the Company's 1997 Incentive Stock Option Plan or 1998 Nonqualified
    Stock Option Plan and vest immediately with an exercise price equal to the
    closing price of the Company's stock on the date of grant.  The stock option
    grant date is the date the Executive Compensation Committee determines the
    officer's aggregate bonus amount based on achievement of the budgeted
    revenue and earnings goals and the individual qualitative personal goals.
    For fiscal 2010, Mr. Oland earned __% of his eligible bonus, or $_______.
    He was paid a cash bonus of $_____ and was granted stock options in fiscal
    2011 for ___ shares of Company stock.   For fiscal 2010, Mr. Melsen earned
    __% of his eligible bonus or $______.  He was paid a cash bonus of $_____
    and was granted stock options in fiscal 2011 for ___ shares of Company
    stock.  For fiscal 2010, Mr. Veronneau earned ___ % of his eligible bonus or
    $______.  He was paid a cash bonus of $_____ and was granted stock options
    in fiscal 2011 for ___ shares of Company stock.

                                   ************

We hope that we have adequately addressed your Comment Letter dated January
28, 2010.


Sincerely,

/s/ Thomas E. Oland

Thomas E. Oland
President and Chief Executive Officer

/s/ Gregory J. Melsen

Gregory J. Melsen
Chief Financial Officer

Cc:  Travis Rabe, KPMG
     Melodie Rose, Fredrikson & Byron