Exhibit (d)(53)(a)

AMERICAN SKANDIA TRUST

AST T. Rowe Price Large-Cap Growth Portfolio

SUBADVISORY AGREEMENT

Agreement made as of this 29^th day of November, 2005 between Prudential Investments LLC (PI), a New York limited liability company and American Skandia Investment Services, Inc. (ASISI), a Maryland corporation (together, the Co-Managers), and T. Rowe Price Associates, Inc. (T. Rowe Price or the Subadviser);

WHEREAS, the Co-Managers have entered into a Management Agreement (the Management Agreement) dated May 1, 2003, with American Skandia Trust, a Massachusetts trust (the Trust) and a diversified, open-end management investment company registered under the Investment Company Act of 1940, as amended (the 1940 Act), pursuant to which PI and ASISI act as Co-Managers of the Trust; and

WHEREAS, the Co-Managers, acting pursuant to the Management Agreement, desire to retain the Subadviser to provide investment advisory services to the Trust and one or more of its series as specified in Schedule A hereto (individually and collectively, with the Trust, referred to herein as the Trust) and to manage such portion of the Trust as the Co-Managers shall from time to time direct, and the Subadviser is willing to render such investment advisory services; and

NOW, THEREFORE, the Parties agree as follows:

1. (a) Subject to the supervision of the Co-Managers and the Board of Trustees of the Trust, the Subadviser shall manage such portion of the Trust’s portfolio as delegated to the Subadviser by the Co-Managers, including the purchase, retention and disposition thereof, in accordance with the Trust’s investment objectives, policies and restrictions as stated in its then current prospectus and statement of additional information (such Prospectus and Statement of Additional Information as currently in effect and as amended or supplemented from time to time, being herein called the “Prospectus”), and subject to the following understandings:

(i) The Subadviser shall provide supervision of such portion of the Trust's investments as the Co-Managers shall direct, and shall determine from time to time what investments and securities will be purchased, retained, sold or loaned by the Trust, and what portion of the assets will be invested or held uninvested as cash.

(ii) In the performance of its duties and obligations under this Agreement, the Subadviser shall act in conformity with the copies of the Amended and Restated Declaration of Trust of the Trust , the By-laws of the Trust, and the Prospectus of the Trust provided to it by the Co-Managers (the Trust Documents) and with the instructions and directions of the Co-Managers and of the Board of Trustees of the Trust, co-operate with the Co-Managers' (or their designees') personnel responsible for monitoring the Trust’s compliance and will conform to, and comply with respect to its management of the Fund, with the requirements of the 1940 Act, the Internal Revenue Code of 1986, as amended, and all other applicable federal and state laws and regulations. The Co-Managers shall provide Subadviser timely with copies of any updated Trust Documents.

(iii) The Subadviser shall determine the securities and futures contracts to be purchased or sold by such portion of the Trust's portfolio, as applicable, and may place orders with or through such persons, brokers, dealers or futures commission merchants (including but not limited to Prudential Securities Incorporated (or any broker or dealer affiliated with the Subadviser) to carry out the policy with respect to brokerage as set forth in the Trust's Prospectus or as the Board of Trustees may direct in writing from time to time. In providing the Trust with investment supervision, it is recognized that the Subadviser will give primary consideration to securing the most favorable price and efficient execution. Within the framework of this policy, the Subadviser may consider the financial responsibility, research and investment information and other services provided by brokers, dealers or futures commission merchants who may effect or be a party to any such transaction or other transactions to which the Subadviser’s other clients may be a party. The Co-Managers (or Subadviser) to the Trust each shall have discretion to effect investment transactions for the Trust through broker-dealers (including, to the extent legally permissible, broker-dealers affiliated with the Subadviser(s)and Co-Managers) qualified to obtain best execution of such transactions who provide brokerage and/or research services, as such services are defined in Section 28(e) of the Securities Exchange Act of 1934, as amended (the “1934 Act”), and to cause the Trust to pay any such broker-dealers an amount of commission for effecting a portfolio transaction in excess of the amount of commission another broker-dealer would have charged for effecting that

transaction, if the brokerage or research services provided by such broker-dealer, viewed in light of either that particular investment transaction or the overall responsibilities of the Co-Managers (or the Subadviser) with respect to the Trust and other accounts as to which they or it may exercise investment discretion (as such term is defined in Section 3(a)(35) of the 1934 Act), are reasonable in relation to the amount of commission.

On occasions when the Subadviser deems the purchase or sale of a security or futures contract to be in the best interest of the Trust as well as other clients of the Subadviser, the Subadviser, to the extent permitted by applicable laws and regulations, may, but shall be under no obligation to, aggregate the securities or futures contracts to be sold or purchased. In such event, allocation of the securities or futures contracts so purchased or sold, as well as the expenses incurred in the transaction, will be made by the Subadviser in the manner the Subadviser considers to be the most equitable and consistent with its fiduciary obligations to the Trust and to such other clients.

(iv) The Subadviser shall maintain all books and records with respect to the Trust’s portfolio transactions effected by it as required by subparagraphs (b)(5), (6), (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1 under the 1940 Act, and shall render to the Trust’s Board of Trustees such periodic and special reports as the Trustees may reasonably request. The Subadviser shall make reasonably available its employees and officers for consultation with any of the Trustees or officers or employees of the Trust with respect to any matter discussed herein, including, without limitation, the valuation of the Trust’s securities.

(v) The Subadviser or an affiliate shall provide the Trust's Custodian on each business day with information relating to all transactions concerning the portion of the Trust’s assets it manages, and shall provide the Co-Managers with such information upon reasonable request of the Co-Managers.

(vi) The investment management services provided by the Subadviser hereunder are not to be deemed exclusive, and the Subadviser shall be free to render similar services to others. Conversely, the Subadviser and Co-Managers understand and agree that if the Co-Managers manage the Trust in a “manager-of-managers” style, the Co-Managers will, among other things, (i)  continually evaluate the performance of the Subadviser through quantitative and qualitative analysis and consultations with the Subadviser, (ii)  periodically make recommendations to the Trust’s Board as to whether the contract with one or more subadvisers should be renewed, modified, or terminated, and (iii) periodically report to the Trust's Board regarding the results of its evaluation and monitoring functions. The Subadviser recognizes that its services may be terminated or modified pursuant to this process.

(vii) The Subadviser acknowledges that the Co-Managers and the Trust intend to rely on Rule 17a-10, Rule 10f-3, Rule 12d3-1 and Rule 17e-1 under the 1940 Act, and the Subadviser hereby agrees that it shall not consult with any other subadviser to the Trust with respect to transactions in securities for the Trust’s portfolio or any other transactions of Trust assets.

(b) The Subadviser shall authorize and permit any of its directors, officers and employees who may be elected as Trustees or officers of the Trust to serve in the capacities in which they are elected. Services to be furnished by the Subadviser under this Agreement may be furnished through the medium of any of such directors, officers or employees.

(c) The Subadviser shall keep the Trust’s books and records required to be maintained by the Subadviser pursuant to paragraph 1(a) hereof and shall timely furnish to the Co-Managers all information relating to the Subadviser’s services hereunder needed by the Co-Managers to keep the other books and records of the Trust required by Rule 31a-1 under the 1940 Act or any successor regulation. The Subadviser agrees that all records which it maintains for the Trust are the property of the Trust, and the Subadviser will surrender promptly to the Trust any of such records upon the Trust’s request, provided, however, that the Subadviser may retain a copy of such records. The Subadviser further agrees to preserve for the periods prescribed by Rule 31a-2 of the Commission under the 1940 Act or any successor regulation any such records as are required to be maintained by it pursuant to paragraph 1(a) hereof.

(d) In connection with its duties under this Agreement, the Subadviser agrees to maintain adequate compliance procedures to ensure its compliance with applicable securities laws, rules, and regulations as contemplated by Rule 38a-1 under the 1940 Act and Rule 206 (4)-7 under, the Investment Advisers Act of 1940, as amended.

(e) The Subadviser shall furnish to the Co-Managers copies of all records prepared in connection with (i) the performance of this Agreement and (ii) the maintenance of compliance procedures pursuant to paragraph 1(d) hereof as the Manager may reasonably request.

(f) The Subadviser shall be responsible for the voting of all shareholder proxies with respect to the investments and securities held in the Trust’s portfolio, provided that the Fund custodian has furnished such proxy materials and other items requiring a vote in a timely fashion to the Subadviser, subject to such reasonable reporting and other requirements as shall be established by the Co-Managers.

(g) Upon reasonable request from the Co-Managers, the Subadviser (through a qualified person) will assist the valuation committee of the Trust or the Co-Managers as may be required from time to time in valuing securities of the Trust for which market quotations are not “readily available” within the meaning of applicable Commission guidance, including making available information of which the Subadviser has knowledge related to the securities being valued. Co-Managers acknowledge that the Subadviser is not the Fund’s pricing agent.

2. The Co-Managers shall continue to have responsibility for all services to be provided to the Trust pursuant to the Management Agreement and, as more particularly discussed above, shall oversee and review the Subadviser’s performance of its duties under this Agreement. The Co-Managers shall provide (or cause the Trust’s custodian to provide) timely information to the Subadviser regarding such matters as the composition of assets in the portion of the Trust managed by the Subadviser, cash requirements and cash available for investment in such portion of the Trust, and all other information as may be reasonably necessary for the Subadviser to perform its duties hereunder (including any excerpts of minutes of meetings of the Board of Trustees of the Trust that affect the duties of the Subadviser).

3. For the services provided pursuant to this Agreement, the Co-Managers shall pay the Subadviser as full compensation therefor, a fee equal to the percentage of the Trust’s average daily net assets of the portion of the Trust managed by the Subadviser as described in the attached Schedule A no later than the fifteenth (15^th) business day immediately following the end of each calendar month.. Liability for payment of compensation by the Co-Managers to the Subadviser under this Agreement is contingent upon the Co-Managers’ receipt of payment from the Trust for management services described under the Management Agreement between the Fund and the Co-Managers. Expense caps or fee waivers for the Trust that may be agreed to by the Co-Managers, but not agreed to by the Subadviser, shall not cause a reduction in the amount of the payment to the Subadviser by the Co-Managers. If this Agreement terminates before the end of any calendar month, the investment management fee for the period from the beginning of such month to the date of termination shall be prorated based on the full month in which such termination occurs. Co-Managers will provide a worksheet with the monthly payment showing the average daily net assets and the calculation of the subadvisory fee.

4. The Subadviser shall not be liable for any error of judgment or for any loss suffered by the Trust or the Co-Managers in connection with the matters to which this Agreement relates, except a loss resulting from willful misfeasance, bad faith or gross negligence on the Subadviser’s part in the performance of its duties or from its reckless disregard of its obligations and duties under this Agreement, provided, however, that nothing in this Agreement shall be deemed to waive any rights the Co-Managers or the Trust may have against the Subadviser under federal or state securities laws. The Co-Managers shall indemnify the Subadviser, its affiliated persons, its officers, directors and employees, for any liability and expenses, including attorneys’ fees, which may be sustained as a result of the Co-Managers' willful misfeasance, bad faith, gross negligence, reckless disregard of its duties hereunder or violation of applicable law, including, without limitation, the 1940 Act and federal and state securities laws. The Subadviser shall indemnify the Co-Managers, their affiliated persons, their officers, directors and employees, for any liability and expenses, including attorneys’ fees, which may be sustained as a result of the Subadviser’s willful misfeasance, bad faith, gross negligence, or reckless disregard of its duties hereunder or violation of applicable law, including, without limitation, the 1940 Act and federal and state securities laws.

5. This Agreement shall continue in effect for a period of more than two years from the date hereof only so long as such continuance is specifically approved at least annually in conformity with the requirements of the 1940 Act; provided, however, that this Agreement may be terminated by the Trust at any time, without the payment of any penalty, by the Board of Trustees of the Trust or by vote of a majority of the outstanding voting securities (as defined in the 1940 Act) of the Fund, or by the Co-Managers or the Subadviser at any time, without the payment of any penalty, on not more than 60 days’ nor less than 30 days’ written notice to the other party. This Agreement shall terminate automatically in the event of its assignment (as defined in the 1940 Act) or upon the termination of the Management Agreement. The Subadviser agrees that it will promptly notify the Trust and the Co-Managers of the occurrence of any event that would result in the assignment (as defined in the 1940 Act) of this Agreement, including, but not limited to, a change of control (as defined in the 1940 Act) of the Subadviser.

Any notice or other communication required to be given pursuant to this Agreement shall be deemed duly given if delivered or mailed by registered mail, postage prepaid, (1) to the Co-Managers at Gateway Center Three, 100 Mulberry Street, 4th Floor, Newark, NJ 07102-4077, Attention: Secretary (for PI) and One Corporate Drive, Shelton, Connecticut, 06484, Attention: Secretary (for ASISI); (2) to the Trust at Gateway Center Three, 100 Mulberry Street, 4th Floor, Newark, NJ 07102-4077, Attention: Secretary; or (3) to the Subadviser at 100 East Pratt Street, Baltimore, Maryland 21202, Attention: Henry Hopkins , Esq.

6. Nothing in this Agreement shall limit or restrict the right of any of the Subadviser’s directors, officers or employees who may also be a Trustee, officer or employee of the Trust to engage in any other business or to devote his or her time and attention in part to the management or other aspects of any business, whether of a similar or a dissimilar nature, nor limit or restrict the Subadviser’s right to engage in any other business or to render services of any kind to any other corporation, firm, individual or association. Nothing in this Agreement shall impose upon the Subadviser any obligation to purchase or sell or recommend for purchase or sale, for the Fund any security which it, its affiliates, or employees may purchase or sell for the Subadviser’s account or such affiliates’ or employees’ own accounts or for the account of any other client of Subadviser.

7. During the term of this Agreement, the Co-Managers agree to furnish the Subadviser at its principal office all prospectuses, proxy statements, reports to shareholders, sales literature or other material prepared for distribution to shareholders of the Trust or the public, which refer to the Subadviser in any way, prior to use thereof and not to use material if the Subadviser reasonably objects in writing five business days (or such other time as may be mutually agreed) after receipt thereof. Sales literature may be furnished to the Subadviser hereunder by first-class or overnight mail, facsimile transmission equipment or hand delivery. The Co-Managers will ensure that materials prepared by employees or agents of the Co-Managers or their affiliates that refer to the Subadviser in any way are

consistent with those materials previously approved by the Subadviser as referenced in this section.

8. This Agreement may be amended by mutual consent, but the consent of the Trust must be obtained in conformity with the requirements of the 1940 Act.

9. This Agreement shall be governed by the laws of the State of New York.

10. Any question of interpretation of any term or provision of this Agreement having a counterpart in or otherwise derived from a term or provision of the 1940 Act, shall be resolved by reference to such term or provision of the 1940 Act and to interpretations thereof, if any, by the United States courts or, in the absence of any controlling decision of any such court, by rules, regulations or orders of the Commission issued pursuant to the 1940 Act. In addition, where the effect of a requirement of the 1940 Act, reflected in any provision of this Agreement, is related by rules, regulation or order of the Commission, such provision shall be deemed to incorporate the effect of such rule, regulation or order.

11. All information, advice, board materials, reports and other materials furnished by one party to the other (including their respective agents, employees and representatives) hereunder shall be treated as confidential and shall not be disclosed to third parties, except as may be necessary to comply with applicable laws, rules and regulations, subpoenas or court orders, or as may reasonably be requested by a regulator. In addition, Co-Managers will take all steps reasonably necessary to ensure that their employees and affiliates who request portfolio information from Subadviser are appropriately authorized to receive such information under the Fund’s selective disclosure policies. Notwithstanding the foregoing, Co-Managers agree that Subadviser may identify the Co-Managers or the Fund as a client in Subadviser’s promotional materials.

IN WITNESS WHEREOF, the Parties hereto have caused this instrument to be executed by their officers designated below as of the day and year first above written.

PRUDENTIAL INVESTMENTS LLC

By:

Name:

Title:

AMERICAN SKANDIA INVESTMENT SERVICES, INC.

By:

Name:

Title:

T. ROWE PRICE ASSOCIATES, INC.

By:

Name:

Title:

SCHEDULE A

AMERICAN SKANDIA TRUST

AST T. Rowe Price Large-Cap Growth Portfolio

As compensation for services provided by T. Rowe Price Associates, Inc., Prudential Investments LLC and American Skandia Investment Services, Inc. will pay T. Rowe Price Associates, Inc. an advisory fee on the net assets managed by T. Rowe Price Associates, Inc. that is equal, on an annualized basis, to the following:

Portfolio Name Advisory Fee

AST T. Rowe Price Large-Cap Growth Portfolio 0.40% of average daily net assets to $250 million; 0.375% of average daily net assets from $250 million to $500 million; and 0.35% of average daily net assets over $500 million^[1].

Dated as of November 29, 2005.

_________________________

 For purposes of calculating the fee payable to T. Rowe Price Associates, Inc., the net assets of AST T. Rowe Price Large-Cap Growth Portfolio managed by T. Rowe Price Associates, Inc. will be combined with the net assets of SP T. Rowe Price Large-Cap Growth Portfolio of The Prudential Series Fund, Inc. (or its corporate successor) managed by T. Rowe Price Associates, Inc.