UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                  SCHEDULE 13G

                   Under the Securities Exchange Act of 1934*

                           Darling International Inc.

                                (Name of Issuer)

                     Common Stock, par value $0.01 per share
--------------------------------------------------------------------------------
                         (Title of Class of Securities)


                                   237266-10-1
--------------------------------------------------------------------------------
                                 (CUSIP Number)


                                 August 27, 2003

--------------------------------------------------------------------------------
             (Date of Event Which Requires Filing of this Statement)




                                                                                         
Check the appropriate box to designate the rule pursuant to which this Schedule is filed:   [ ] Rule 13d-1(b)
                                                                                            [x] Rule 13d-1(c)
                                                                                            [ ] Rule 13d-1(d)


* 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 the
disclosures provided in a prior cover page.

The information required in 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).

            Person Authorized to Receive Notices and Communications:

                             Janice V. Sharry, Esq.
                              Haynes and Boone, LLP
                           901 Main Street, Suite 3100
                               Dallas, Texas 75202
                                 (214) 651-5562






                                  SCHEDULE 13G


CUSIP No. - 237266-10-1                                      Page 2  of 7  Pages
                                                                 ---   ---

-------------------------------------------------------------------------------
 1    NAME OF REPORTING PERSON
      I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

           MSD Capital, L.P., a Delaware limited partnership
           74-2880190

-------------------------------------------------------------------------------
 2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                 (a) [ ]
                                                                       (b) [X]

-------------------------------------------------------------------------------
 3    SEC USE ONLY


-------------------------------------------------------------------------------
 4    CITIZENSHIP OR PLACE OR ORGANIZATION

           Delaware

-------------------------------------------------------------------------------
                               5    SOLE VOTING POWER
      NUMBER OF
       SHARES                           0
    BENEFICIALLY
      OWNED BY                -------------------------------------------------
        EACH                   6    SHARED VOTING POWER
      REPORTING
       PERSON                           6,196,127
        WITH
                              -------------------------------------------------
                               7    SOLE DISPOSITIVE POWER

                                        0

                              -------------------------------------------------
                               8    SHARED DISPOSITIVE POWER

                                        6,196,127

-------------------------------------------------------------------------------
 9    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

           6,196,127

-------------------------------------------------------------------------------
10    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES [ ]


-------------------------------------------------------------------------------
11    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

           9.9%

-------------------------------------------------------------------------------
12    TYPE OF REPORTING PERSON

           PN

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



                                  SCHEDULE 13G


CUSIP No. - 237266-10-1                                      Page 3  of 7  Pages
                                                                 ---   ---

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

 1    NAME OF REPORTING PERSON
      I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY)

           SOF Investments, L.P., a Delaware limited partnership
           30-0090869

-------------------------------------------------------------------------------
 2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                  (a) [ ]
                                                                        (b) [X]

-------------------------------------------------------------------------------
 3    SEC USE ONLY


-------------------------------------------------------------------------------
 4    CITIZENSHIP OR PLACE OR ORGANIZATION

           Delaware

-------------------------------------------------------------------------------
                                 5   SOLE VOTING POWER
      NUMBER OF
       SHARES                          0
    BENEFICIALLY               ------------------------------------------------
      OWNED BY                   6   SHARED VOTING POWER
        EACH
      REPORTING                        6,196,127
       PERSON
        WITH                   ------------------------------------------------
                                 7   SOLE DISPOSITIVE POWER

                                       0

                               ------------------------------------------------
                                 8   SHARED DISPOSITIVE POWER

                                       6,196,127

-------------------------------------------------------------------------------
 9    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

           6,196,127

-------------------------------------------------------------------------------
10    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES  [ ]


-------------------------------------------------------------------------------
11    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

           9.9%

-------------------------------------------------------------------------------
12    TYPE OF REPORTING PERSON

           PN

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




                                                             Page 4  of 7  Pages
                                                                 ---   ---


Item 1(a)  Name of Issuer:

           Darling International Inc.

Item 1(b)  Address of Issuer's Principal Executive Offices:

           251 O'Connor Ridge Blvd., Suite 300
           Irving, Texas 75038

Item 2(a)  Names of Persons Filing:


           MSD Capital, L.P.
           SOF Investments, L.P.

Item 2(b)  Addresses of Principal Business Offices:

           MSD Capital, L.P.
           645 Fifth Avenue, 21st Floor
           New York, New York 10022

           SOF Investments, L.P.
           645 Fifth Avenue, 21st Floor
           New York, New York 10022

Item 2(c)  Citizenship:

           MSD Capital, L.P. - Delaware
           SOF Investments, L.P. - Delaware

Item 2(d)  Title of Class of Securities:

           Common Stock, par value $0.01 per share

Item 2(e)  CUSIP Number:

           237266-10-1





                                                             Page 5  of 7  Pages
                                                                 ---   ---

Item 3    Status of Persons Filing:

          (a) [ ]  Broker or dealer registered under section 15 of the Act
                   (15 U.S.C. 78o);

          (b) [ ]  Bank as defined in section 3(a)(6) of the Act
                   (15 U.S.C. 78c);

          (c) [ ]  Insurance company as defined in section 3(a)(19) of the Act
                   (15 U.S.C. 78c);

          (d) [ ]  Investment company registered under section 8 of the
                   Investment Company Act of 1940 (15 U.S.C. 80a-8);

          (e) [ ]  An investment adviser in accordance with Section
                   240.13d-1(b)(1)(ii)(E);

          (f) [ ]  An employee benefit plan or endowment fund in accordance with
                   Section 240.13d-1(b)(1)(ii)(F);

          (g) [ ]  A parent holding company or control person in accordance with
                   Section 240.13d-1(b)(1)(ii)(G);

          (h) [ ]  A savings association as defined in Section 3(b) of the
                   Federal Deposit Insurance Act (12 U.S.C. 1813);

          (i) [ ]  A church plan that is excluded from the definition of an
                   investment company under section 3(c)(14) of the Investment
                   Company Act of 1940 (15 U.S.C. 80a-3);

          (j) [ ]  Group, in accordance with Section 240.13d-1(b)(1)(ii)(J).

Item 4             Ownership:


          (a) As of August 29, 2003, SOF Investments, L.P., a Delaware limited
              partnership ("SOF"), was the record and beneficial owner of
              6,196,127 shares (the "Shares") of Common Stock of Darling
              International Inc. MSD Capital, L.P., a Delaware limited
              partnership ("MSD"), is the general partner of SOF, and therefore
              may be deemed to be the indirect beneficial owner of the Shares.
              MSD Capital Management LLC is the general partner of MSD.

          (b) Percent of Class: 9.9%.

          (c) Number of shares as to which the person has:

              (i)   sole power to vote or to direct the vote:

                        0

              (ii)  shared power to vote or to direct the vote:

                        MSD Capital, L.P. - 6,196,127
                        SOF Investments, L.P. - 6,196,127

              (iii) sole power to dispose or to direct the disposition of:

                        0

              (iv)  shared power to dispose or to direct the disposition of:

                        MSD Capital, L.P. - 6,196,127
                        SOF Investments, L.P. - 6,196,127




                                                             Page 6  of 7  Pages
                                                                 ---   ---

Item 5    Ownership of 5% or Less of a Class:

          Not applicable.

Item 6    Ownership of More than 5% on Behalf of Another Person:

          Not applicable.

Item 7    Identification and Classification of the Subsidiary Which Acquired the
          Security Being Reported on by the Parent Holding Company or Control
          Person:

          Not applicable.

Item 8    Identification and Classification of Members of the Group:

          Not applicable.

Item 9    Notice of Dissolution of Group:

          Not applicable.

Item 10   Certification:

          By signing below I certify that, to the best of my knowledge and
          belief, the securities referred to above were not acquired and are not
          held for the purpose of or with the effect of changing or influencing
          the control of the issuer of the securities and were not acquired and
          are not held in connection with or as a participant in any transaction
          having that purpose or effect.




                                                             Page 7  of 7  Pages
                                                                 ---   ---

                                   SIGNATURES

         After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.

Date: August 29, 2003


                             MSD CAPITAL, L.P.

                             By: MSD Capital Management LLC, its general partner


                                 By: /s/ Marc R. Lisker
                                     ------------------------------------------
                                     Marc R. Lisker
                                     General Counsel

                             SOF INVESTMENTS, L.P.

                             By: MSD Capital, L.P., its general partner


                                 By: /s/ Marc R. Lisker
                                     ------------------------------------------
                                     Marc R. Lisker
                                     General Counsel





                                    EXHIBITS

Exhibit A   Joint Filing Agreement, dated August 29, 2003, entered into by and
            between MSD Capital, L.P. and SOF Investments, L.P.