LSR Life Sciences Research

CUSIP No.532169109 13G Page 2 of 5 Pages
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 1. NAME OF REPORTING PERSON:
 I.R.S. IDENTIFICATION NO. OF ABOVE PERSON:

 Morgan Stanley
 I.R.S. #36-3145972
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 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:

 (a) [ ]

 (b) [ ]
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 3. SEC USE ONLY:

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 4. CITIZENSHIP OR PLACE OF ORGANIZATION:

 The state of organization is Delaware.
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 NUMBER OF 5. SOLE VOTING POWER:
 SHARES 678,945
 BENEFICIALLY --------------------------------------------------------------
 OWNED BY 6. SHARED VOTING POWER:
 EACH
 REPORTING --------------------------------------------------------------
 PERSON 7. SOLE DISPOSITIVE POWER:
 WITH: 679,225
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 8. SHARED DISPOSITIVE POWER:

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 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON:
 679,225
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 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES:

 [ ]
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 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9):
 5.1%
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 12. TYPE OF REPORTING PERSON:
 HC, CO
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CUSIP No.532169109 13G Page 3 of 5 Pages
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Item 1. (a) Name of Issuer:

 LIFE SCIENCES RESEARCH INC
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 (b) Address of Issuer's Principal Executive Offices:

 P. O. BOX 2360
 METTLERS ROAD
 EAST MILLSTONE NJ 08875

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Item 2. (a) Name of Person Filing:

 Morgan Stanley
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 (b) Address of Principal Business Office, or if None, Residence:

 1585 Broadway
 New York, NY 10036
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 (c) Citizenship:

 The state of organization is Delaware.
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 (d) Title of Class of Securities:

 Common Stock
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 (e) CUSIP Number:

 532169109
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Item 3. If this statement is filed pursuant to Sections 240.13d-1(b) or
 240.13d-2(b) or (c), check whether the person filing is a:

 (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 Sections
 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).

CUSIP No.532169109 13-G Page 4 of 5 Pages
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Item 4. Ownership as of July 2, 2009.*

 (a) Amount beneficially owned:
 See the response(s) to Item 9 on the attached cover page(s).

 (b) Percent of Class:
 See the response(s) to Item 11 on the attached cover page(s).

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

 (i) Sole power to vote or to direct the vote:
 See the response(s) to Item 5 on the attached cover page(s).

 (ii) Shared power to vote or to direct the vote:
 See the response(s) to Item 6 on the attached cover page(s).

 (iii) Sole power to dispose or to direct the disposition of:
 See the response(s) to Item 7 on the attached cover page(s).

 (iv) Shared power to dispose or to direct the disposition of:
 See the response(s) to Item 8 on the attached cover page(s).

Item 5. Ownership of Five Percent or Less of a Class.

 Not Applicable

Item 6. Ownership of More Than Five Percent 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.

 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.

* In Accordance with the Securities and Exchange Commission Release
No. 34-39538 (January 12, 1998) (the "Release"), this filing reflects the
securities beneficially owned, or that may be deemed to be beneficially owned,
by certain operating units (collectively, the "MS Reporting Units") of Morgan
Stanley and its subsidiaries and affiliates (collectively, "MS"). This filing
does not reflect securities, if any, beneficially owned by any operating units
of MS whose ownership of securities is disaggregated from that of the MS
Reporting Units in accordance with the Release.
 Pursuant to the Amended and Restated Joint Venture Contribution and Formation
Agreement, dated May 29, 2009, Morgan Stanley indirectly owns 51% of Morgan
Stanley Smith Barney LLC (MSSB) and Citigroup Inc. indirectly owns the
remaining 49% of MSSB. Securities disclosed in this Schedule 13G include
780 shares beneficially owned by the portion of MSSB contributed by Morgan
Stanley, which represent 0.0058% of the shares outstanding in the applicable
class of securities of the issuer. See SEC No-Action Letter Morgan Stanley
Smith Barney LLC (May 29, 2009) for more information.

CUSIP No.532169109 13-G Page 5 of 5 Pages
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 Signature.


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: July 13, 2009

Signature: /s/ Dennine Bullard
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Name/Title: Dennine Bullard/Authorized Signatory, Morgan Stanley
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 MORGAN STANLEY







* Attention. Intentional misstatements or omissions of fact constitute federal
criminal violations (see 18 U.S.C. 1001).