SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                  SCHEDULE 13D

                    Under the Securities Exchange Act of 1934
                              (Amendment No. ___)*



                                  BIGMAR, INC.
--------------------------------------------------------------------------------
                                (Name of Issuer)

                          Common Stock, $.001 par value
                         (Title of Class of Securities)

                                   089893-10-1
                                 (CUSIP Number)

                               Norman Alpert, Esq.
                        Sonnenschein Nath & Rosenthal LLP
                           1221 Avenue of the Americas
                          New York, New York 10020-1089
                                 (212) 768-6700
--------------------------------------------------------------------------------
            (Name, Address and Telephone Number of Person Authorized
                     to Receive Notices and Communications)

                                  May 15, 1997
--------------------------------------------------------------------------------
             (Date of Event which Requires Filing of this Statement)


If the filing person has previously  filed a statement on Schedule 13G to report
the  acquisition  which is the subject of this  Schedule 13D, and is filing this
schedule because of ss.ss. 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the
following box. ?

Note:  Schedules  filed in paper format shall include a signed original and five
copies of the schedule,  including all exhibits.  See  ss.240.13d-7(b) for other
parties to whom copies are to be sent.

*The  remainder of this cover page shall be filled out for a reporting  person's
initial filing on this form with respect to the subject class of securities, and
for  any  subsequent   amendment   containing   information  which  would  alter
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the  Securities  Exchange  Act of
1934 ("Act") or otherwise  subject to the liabilities of that section of the Act
but  shall be  subject  to all other  provisions  of the Act  (however,  see the
Notes).

                                  Page 1 of 13




                                  SCHEDULE 13D

---------------------- -------------------------------------------- ------------
CUSIP NO. 089893-10-1                                               Page 2 of 13
---------------------- -------------------------------------------- ------------
--------------------------------------------------------------------------------

  1     NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS

        Banca del Gottardo
------ -------------------------------------------------------------------------
  2     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*             (a) [ ]
                                                                      (b) [ ]
------ -------------------------------------------------------------------------
  3     SEC USE ONLY
------ -------------------------------------------------------------------------
  4     SOURCE OF FUNDS*

        WC, OO
------ -------------------------------------------------------------------------
  5     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
        ITEMS 2(d) or 2(e)                                                [ ]
------ -------------------------------------------------------------------------
  6     CITIZENSHIP OR PLACE OF ORGANIZATION

        Switzerland
--------------------------------------------------------------------------------
  NUMBER OF           7          SOLE VOTING POWER  7,201,667
   SHARES         -----------  -------------------------------------------------
BENEFICIALLY          8          SHARED VOTING POWER  1,495,867(1)
  OWNED BY       -----------  --------------------------------------------------
    EACH              9          SOLE DISPOSITIVE POWER  7,201,667
  REPORTING      -----------  --------------------------------------------------
PERSON WITH          10          SHARED DISPOSITIVE POWER  1,495,867(1)
--------------------------------------------------------------------------------
  11    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                                 8,697,534
------ -------------------------------------------------------------------------
  12    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
                                                                          [ ]
------ -------------------------------------------------------------------------
  13    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                                 48.2%
------ -------------------------------------------------------------------------
  14    TYPE OF REPORTING PERSON*
                                 BK(2)
------ -------------------------------------------------------------------------


                      *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE AND THE SIGNATURE ATTESTATION.


------------------

(1)  Held for the benefit of third parties or in customer or fiduciary  accounts
     over which the Bank has discretionary authority.
(2)  The  Reporting  Person  has  received  relief  form  the  SEC to  file as a
     "Qualified Institutional Investor."






Item 1. Security and Issuer.
------  -------------------

     This Statement on Schedule 13D relates to the Common Stock, par value $.001
per  share  (the  "Shares"),  of  Bigmar,  Inc.,  a  Delaware  corporation  (the
"Issuer").  The  address of the  Issuer's  principal  executive  offices is 9711
Sportsman Club Road,  Johnstown,  Ohio 43041.

Item 2. Identity and Background.
------  -----------------------

     This Statement on Schedule 13D is filed on behalf of Banca del Gottardo,  a
Swiss bank (the "Bank" or the "Reporting Person").  The address of the principal
office of the Bank is Viale S. Franscini 8, CH-6901 Lugano, Switzerland.  During
the past five years the  Reporting  Person has not, and, to the knowledge of the
Reporting Person,  none of the executive  officers or directors of the Reporting
Person has been,  (i)  convicted  in a criminal  proceeding  (excluding  traffic
violations or similar  misdemeanors)  or (ii) a party to a civil proceeding of a
judicial or administrative  body of competent  jurisdiction as a result of which
such  person or entity was or is subject to a  judgment,  decree or final  order
enjoining future violations of, or prohibiting or mandating  activities  subject
to,  federal or state  securities  laws or finding any violation with respect to
such  laws.  The name,  business  address,  citizenship  and  present  principal
occupation or employment of each director and executive officer of the Reporting
Person  are set forth on Annex A hereto.

Item 3. Source and Amount of Funds or Other Consideration.
------  -------------------------------------------------

     The major  acquisitions by the Reporting Person (either for its own account
or for customer or fiduciary  accounts) of beneficial  ownership of the Issuer's
securities (including certain still outstanding  derivative  securities) were as
follows:

     a) During February 2001, the Reporting  Person  acquired  (either for their
own accounts or for customer or fiduciary  accounts) from the Issuer  beneficial
ownership of 6,150 units,  each  consisting of one share of Series B Convertible

                                  Page 3 of 13




Preferred  Stock (the "Series B Convertible  Preferred  Stock") and two warrants
(the  "Warrants"),   for  approximately  $6,150,000.  Each  share  of  Series  B
Convertible  Preferred  Stock is currently  convertible  until December 31, 2005
into 666.6667  Shares at an adjusted  conversion  price of $1.50 per Share;  any
Series B  Convertible  Preferred  Stock still  outstanding  on December 31, 2005
automatically   converts   into   Shares  at  this   conversion   price   (i.e.,
666.6667-for-1).  (Until  December 31, 2002,  each share of Series B Convertible
Preferred Stock was convertible  into 500 Shares at a conversion  price of $2.00
per  Share).  The  Warrants  have an  exercise  price of $2.00 per Share and are
exercisable until February 28, 2006. The Reporting Person currently beneficially
owns (either for its own account or for customer or  fiduciary  accounts)  5,960
shares of Series B Convertible Preferred Stock and 1,167,000 Warrants.

     b) During November 2001, as subsequently  adjusted in March 2002,  pursuant
to a  Subscription  Agreement  with the Issuer,  the Reporting  Person  acquired
2,238,000 Shares for $1,000,000.

     The Reporting  Person used working  capital to acquire the Shares  acquired
for its own account and the funds of customer or fiduciary  accounts (over which
the  Reporting  Person  exercises  investment  discretion)  to acquire  for such
accounts the Shares acquired by these managed accounts.

Item 4. Purpose of the Transaction.
------  --------------------------

     The Reporting Person acquired beneficial  ownership of, and currently holds
the  Shares  for,  investment,  either for its own  account  or for the  managed
customer or fiduciary  investment accounts over which the Bank shares investment
and voting power.

                                  Page 4 of 13




     The Bank, however,  is also a lender to the Issuer.  Pursuant to an October
1999 Note Purchase,  Paying and Conversion  Agency Agreement (the "Note Purchase
Agreement")  between  the Bank  and the  Issuer,  relating  to the  Issuer's  4%
Convertible  Notes due October 29, 2003 (the "4% Notes"),  the Bank received the
right to nominate two  directors  to the Issuer's  Board of Directors as long as
any of the Notes remain  outstanding.  The Bank did not attempt to exercise this
right until  November  2001,  when in the context of the Issuer's  deteriorating
financial condition and a fight for control between two factions of the Issuer's
Board of  Directors,  the Bank  attempted to exercise  this right,  at a special
meeting of the Board of  Directors  convened by one of the Board  factions  (the
"Tramontana  Faction")  on  November  16,  2001.  On or about  December 4, 2001,
shortly after the competing  factions had each commenced actions in the Court of
Chancery of the State of Delaware  in and for New Castle  County (the  "Court"),
the Bank  commenced  an action in the Court,  encaptioned  Banca del Gottardo v.
Cynthia R. May and Bigmar,  Inc.  (Civil  Action  19294),  seeking,  among other
things,  (1) a  declaration  that the alleged  removal of the  directors  of the
Tramontana  Faction  (including  the Bank's two  designees)  by the rival  Board
faction (the "May Faction")  through  stockholder  written consents was invalid;
(2) a declaration  that  2,000,000  shares  allegedly  purchased by the Bank are
issued and  outstanding  and must be counted in any  election  of  directors  or
requiring that such shares be issued to the Bank  forthwith and any  stockholder
consents (by the May Faction) after November 19, 2001 be invalidated; and (3) an
injunction  against the May Faction  from  taking any  actions  which  failed to
recognize the directors  elected at the November 16, 2001 special meeting of the
Board of Directors  convened by the Tramontana Faction (including the Bank's two
designees).  The Bank's  action was  consolidated  in the Court with the control
litigation between the two Board factions into a consolidated action encaptioned
In Re Bigmar, Inc. Section 225 Litigation (Consolidated Civil Action No.

                                  Page 5 of 13




19289-NC).  On April 5, 2002,  the Court  rendered  its decision in a Memorandum
Opinion (the "Memorandum Opinion") followed by an Order and Final Judgment dated
April 15, 2002, among other things,  invalidating the November 16, 2001 election
of the Bank's two designees to the Issuer's  Board of Directors.  The Court also
invalidated the stockholder  actions  purportedly taken by the May Faction,  and
determined  that the de jure  directors  and  officers  of the Issuer were those
persons in such offices on November 15, 2001,  immediately  prior to the hostile
actions taken by each of the Board Factions. Subsequent to the Court's decision,
the  May  Faction  directors   resigned.   However,   the  remaining   directors
(essentially  the  Tramontana  Faction) did not elect any Bank designees to fill
Board  vacancies,  but,  instead,  elected two independent  directors.  The Bank
believes  that it may be deemed to have  attempted to  influence  control of the
Issuer  beginning  on or about  November  12,  2001,  when the Bank's then Chief
Financial  Officer met with Mr.  Tramontana (and with the managing  partner of a
venture capital firm) concerning the Issuer's deteriorating  financial condition
and discussed potential  financing  arrangements and the possibility of the Bank
appointing  two  directors  pursuant  to  its  right  under  the  Note  Purchase
Agreement.  On  November  15,  2001,  the Bank's  then Chief  Financial  Officer
notified Ms. May that the Bank  intended to exercise its right to have two Board
members,  which the Tramontana  Faction  attempted to effectuate at the November
16, 2001 Board  meeting.  Although the Bank  retains its right to designate  two
directors  pursuant to the Note  Purchase  Agreement as long as the Notes (which
are due October 29, 2003) remain outstanding,  it does not have any designees on
the Issuer's  Board of Directors and does not  currently  intend to exercise its
right to designate such designees.

                                  Page 6 of 13

     As a major  creditor  of the  Issuer,  in  addition  to having  substantial
shareholdings  (see  Item 5 below)  in the  Issuer  for its own  account  and in
managed  customer or fiduciary  accounts,  the Bank  continues to have an active
interest that a solution be found for the Issuer's financial problems.

     In addition to CHF 1,500,000 (currently approximately $1,129,000) of the 4%
Notes held by the Reporting  Person (and an additional CHF 1,300,000  (currently
approximately  $978,000) of the 4% Notes over which its has or shares investment
control), CHF 330,000 (currently  approximately $248,000) of indebtedness to the
Bank is outstanding  under a secured credit facility from the Bank to one of the
Issuer's Swiss operating subsidiaries, Bigmar Pharmaceutical S.A.

     The Reporting  Person intends to closely monitor and evaluate  developments
at and  prospects  of the Issuer,  and continue to evaluate its interest in, and
intentions  with  respect  to, the Shares and the  Issuer.  Although it does not
currently have any specific plans therefor, the Reporting Person may at any time
and from time to time (1) acquire  (for its account or for customer or fiduciary
accounts  managed by it) additional  Shares  (subject to  availability at prices
deemed  favorable) in the open market, in privately  negotiated  transactions or
otherwise,  (2)  dispose  (for its own  account  or for  customer  or  fiduciary
accounts managed by it) of Shares at prices deemed favorable in the open market,
in  privately  negotiated   transactions  (which  might  or  might  not  include
substantially all of the Shares  beneficially  owned by the Reporting Person) or
otherwise,  (3) exercise  its right to designate  two  directors  (which  right,
however,  would expire upon  repayment of the 4% Notes on their October 29, 2003
maturity  date),  (4)  attempt  to cause a  stockholders  meeting to be held (an
annual meeting of  stockholders  was last held on July 7, 2000), or (5) exercise
any of the  rights  the Bank may then have  under its note or credit  agreements

                                  Page 7 of 13




with the Issuer and one of its Swiss  subsidiaries,  including demanding payment
when amounts thereunder are due, whether at stated maturity or upon acceleration
after  any  default,  and  enforcing  its  rights if a  default  occurs.  Senior
executives  of the Bank have  discussed  with  senior  executives  of the Issuer
possible plans and proposals  regarding the Issuer's financial  problems.  Since
the Reporting  Person is a banker to, as well as creditor and large  shareholder
of, the Issuer,  the Reporting  Person  currently  anticipates that such contact
with the Issuer regarding the Issuer's financial problems will continue.


Item 5. Interest in Securities of the Issuer.
------  ------------------------------------

     a) and b) The Bank for its own account  beneficially  owns 7,201,667 shares
(approximately  39.9% of  outstanding  Shares),  of which  4,628,667  are Shares
issuable upon conversion of preferred stock,  convertible notes or warrants,  at
conversion  or exercise  prices which are very  substantially  above the current
market price of the Shares. The Bank would be deemed to have sole investment and
voting power over these  7,201,667  Shares.  In customer and fiduciary  accounts
managed  by the  Bank on a  discretionary  basis,  the  Bank  may be  deemed  to
beneficially  own  an  additional   1,495,867  Shares   (approximately  8.3%  of
outstanding  Shares),  of which 1,004,467 are Shares issuable upon conversion of
preferred stock, convertible notes or warrants, at conversion or exercise prices
which are very substantially  above the current market price of the Shares. As a
result of its discretionary authority over these client accounts, the Bank would
be  deemed  to  share  investment  and/or  voting  control  over  these  Shares.
Accordingly,  the  Bank's  total  beneficial  ownership  of Shares is  8,697,534
(approximately  48.2% of  outstanding  Shares),  of which  5,631,134  are Shares
issuable upon conversion of preferred stock,  convertible notes or warrants,  at
conversion  or exercise  prices which are very  substantially  above the current
market  price of the Shares.  The number of  outstanding  Shares is based on the


                                  Page 8 of 13





last outstanding Shares number disclosed by the Issuer  (10,168,973) in its Form
10-QSB for the Quarterly  Period ended September 30, 2001, filed on November 15,
2001, to which has been added 2,238,000 Shares  subsequently  issued to the Bank
(see Item 3) and 5,631,134 Shares issuable to the Bank (or customer or fiduciary
accounts which it manages) upon conversion or exercise of derivative securities.
The Issuer may have issued additional Shares to other persons  subsequent to the
above-mentioned  2001 Form 10-QSB.  The outstanding  Shares number also does not
reflect very  substantial  numbers of Shares which the Reporting Person believes
are issuable to other  persons upon exercise of  derivative  securities  held by
them.

     In the past,  portions of the Shares beneficially owned by the Bank were at
times held by its wholly-owned subsidiary,  Gotthardfin Ltd., incorporated as an
international business company under the laws of the Bahamas.

     To the knowledge of the Reporting  Person, no director or executive officer
of the Reporting Person beneficially owns any Shares.

     c) Neither the Reporting Person nor, to its knowledge, any of its directors
or executive officers,  has engaged in any transactions in the Shares during the
past sixty days.

     d) Under customer and fiduciary  accounts managed on a discretionary  basis
by the Bank,  various  persons  have the right to receive or the power to direct
the receipt of dividends from, or proceeds from the sale of, the Shares. No such
interest relates to more than 5% of the Shares.

     e) Not applicable

Item 6. Contracts, Arrangements, Understandings or Relationahips with Respect to
------  Securities of the Issuer.
        ------------------------------------------------------------------------

     Reference  is  made  to  Item 3 for a brief  description  of the  Series  B
Convertible  Preferred Stock and the Warrants.  Copies of these items and of the
Note  Purchase  Agreement are attached  hereto as Exhibits and are  incorporated
herein by reference.

                                  Page 9 of 13




     Except as described above (including,  without limitation, the indebtedness
of the  Issuer  and its  subsidiaries  to the Bank  described  in Item 4) and in
accordance  with  the  Bank's  standard  forms of  agreement  with  clients  for
discretionary accounts, there are no contracts, arrangements,  understandings or
relationships  (legal or otherwise)  between the Reporting  Person and any other
person with respect to any securities of the Issuer (including,  but not limited
to, any  contract,  arrangement,  understanding  or  relationship  involving the
transfer or voting of any securities,  finder's fees,  joint  ventures,  loan or
option arrangements,  puts or calls, guarantees of profits, divisions of profits
or loss, or the giving or withholding of proxies).

Item 7. Materials to be Filed as Exhibits.
------  ---------------------------------

        99.1 Note Purchase,  Paying and  Conversion  Agency  Agreement,  dated
             October 26, 1999, between the Issuer and the Bank

        99.2 Certificate of Designations, Preferences and Rights of the Series
             B Convertible Preferred Stock

        99.3 Warrant, dated February 27, 2001

                                 Page 10 of 13




                                   SIGNATURES

     After reasonable inquiry and to the best of the undersigned's knowledge and
belief,  the  undersigned  certifies  that  the  information  set  forth in this
statement is true, complete and correct.

Dated: July 2, 2003

                                        BANCA DEL GOTTARDO


                                        By: /s/ Luca Soncini
                                            -----------------------------------
                                            Name: Luca Soncini
                                            Title:Member of the Executive Board


                                        By: /s/ Tiziano Pellandini
                                            -----------------------------------
                                            Name: Tiziano Pellandini
                                            Title: General Manager

                                 Page 11 of 13




                                                                         Annex A


                                                                                       
                           BANCA DEL GOTTARDO - LUGANO
                               BOARD OF DIRECTORS
---------------------------------------------------------------------------------------------------------------------------
Name                     Business address                                       Citizenship     Principal business
---------------------------------------------------------------------------------------------------------------------------
Claudio Generali         Viale S. Franscini 8, 6901 Lugano (Switzerland)        Swiss           Chairman of the Board of
                                                                                                Directors

Renzo Respini            Via Ferrucci Pelli 7, 6901 Lugano (Switzerland)        Swiss           lawyer

Henry Peter              Via Somaini 10, 6900 Lugano (Switzerland)              Swiss           lawyer

Ulrich Grete             Seefeldstr. 299, 8008 Zurich (Switzerland)             Swiss           Independent director of
                                                                                                companies

Peter Derendinger        Bahnhofstrasse 27, 6430 Schwyz (Switzerland)           Swiss           Lawyer

Henry Pfister            General Guisan-Quai 40, 8002 Zurich (Switzerland)      Swiss           Executive Director of
                                                                                                quoted Company
---------------------------------------------------------------------------------------------------------------------------

                           BANCA DEL GOTTARDO - LUGANO
                                 EXECUTIVE BOARD
--------------------------------------------------------------------------------------------------------------------------
Name                     Business address                                       Citizenship     Principal business
--------------------------------------------------------------------------------------------------------------------------
Marco Netzer             Viale S. Franscini 8, 6901 Lugano (Switzerland)        Swiss           Chief Executive Officer

Nicola Mordasini         Viale S. Franscini 8, 6901 Lugano (Switzerland)        Swiss           Head of Client Services
                                                                                                Division

Luca Soncini             Viale S. Franscini 8, 6901 Lugano (Switzerland)        Swiss           Head of Group Corporate
                                                                                                Center Division

Antonio Sergi            Viale S. Franscini 8, 6901 Lugano (Switzerland)        Swiss/Italian   Head of Investment
                                                                                                Services Division

Thomas Muller            Viale S. Franscini 8, 6901 Lugano (Switzerland)        Swiss           Head of Financial & Risk
                                                                                                Management Division

Walter Etter             Viale S. Franscini 8, 6901 Lugano (Switzerland)        Swiss           Head of IT and Operations
                                                                                                Division
--------------------------------------------------------------------------------------------------------------------------


                                 Page 12 of 13





                                  Exhibit Index

     99.1 Note Purchase,  Paying and Conversion Agency Agreement,  dated October
          26, 1999, between the Issuer and the Bank

     99.2 Certificate of  Designations,  Preferences  and Rights of the Series B
          Convertible Preferred Stock of the Issuer

     99.3 Warrant, dated February 27, 2001.





                                 Page 13 of 13