FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * DONELAN THOMAS A   2. Issuer Name and Ticker or Trading Symbol SYNBIOTICS CORP [SBIO] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 9468 MONTGOMERY ROAD 3. Date of Earliest Transaction (Month/Day/Year) 10/29/2005 (Street) CINCINNATI 45245 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 10/29/2005   J(6)   4,690 D $ 0.13 446,000 D   Common Stock 10/29/2005   J(7)   2,483 D $ 0.13 764,000 I (1) (2) Redwood Holdings, LLC (1) (2) Common Stock 10/29/2005   J(8)   1,907 D $ 0.13 12,214,000 (3) I (3) Redwood West Coast, LLC (3)

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Series C Preferred Stock

(3)

(3)

(3)

Common Stock

9,582,749 (3)

9,582,749 (3)

I (3)

Redwood West Coast, LLC (3)

Series C Preferred Stock

(4)

(4)

(4)

Common Stock

1,401,214 (4)

2,179,666 (4)

I (4)

Redwood Holdings, LLC (4)

Common Stock Warrant

$ 0.17

09/23/2004

09/01/2010

Common Stock

250,000

250,000

I (5)

Redwood Holdings, LLC (5)

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
DONELAN THOMAS A 9468 MONTGOMERY ROAD CINCINNATI 45245	X	X

Signatures

Thomas A. Donelan, by Keith A. Butler his attorney-in-fact		11/09/2005
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Acquired pursuant to the election of Redwood West Coast, LLC in lieu of cash dividends on Synbiotics Corporation's Series C Preferred Stock held by Redwood West Coast, LLC, as permitted by the Certificate of Determination of the Series C Preferred Stock of Synbiotics Corporation. As required by its Operating Agreement, Redwood West Coast, LLC directed that the shares of Common Stock be issued directly to its members. Redwood Holdings, LLC received 766,483 shares of Common Stock of Synbiotics Corporation in these distributions. After the cash-out transaction described in note (7), Redwood Holdings, LLC is the owner of record of 764,000 shares of Common Stock of Synbiotics Corporation. Mr. Donelan is a 24.9% owner of Redwood Holdings, LLC, which has sole voting and dispositive power with respect to the shares. Mr. Donelan disclaims beneficial ownership of the shares reflected above, except to the extent of his direct pecuniary interest in Redwood Holdings, LLC.
(2)	Acquired in lieu of cash dividends on Synbiotics Corporation's Series C Preferred Stock held by Redwood Holdings, LLC, as permitted by the Certificate of Determination of the Series C Preferred Stock of Synbiotics Corporation. Redwood Holdings, LLC received 766,483 shares of Common Stock of Synbiotics Corporation in these distributions. After the cash-out transaction described in note (7), Redwood Holdings, LLC is the owner of record of 764,000 shares of Common Stock of Synbiotics Corporation. Mr. Donelan is a 24.9% owner of Redwood Holdings, LLC, which has sole voting and dispositive power with respect to the shares. Mr. Donelan disclaims beneficial ownership of the shares reflected above, except to the extent of his direct pecuniary interest in Redwood Holdings, LLC.
(3)	See Exhibit 99.1 to this Form 4.
(4)	On October 28, 2005, Redwood Holdings, LLC purchased 180 shares of Series C Convertible Preferred Stock of Synbiotics Corporation. Redwood Holdings, LLC is the beneficial owner of 280 shares of Series C Convertible Preferred Stock of Synbiotics Corporation. Mr. Donelan is a 24.9% owner of Redwood Holdings, LLC. In addition, Mr. Donelan serves on the Management Committee of Redwood Holdings, LLC, which has sole voting and dispositive power with respect to the shares. The shares are convertible into shares of common stock at any time into such number of shares of common stock by dividing each share of Series C Convertible Preferred Stock, valued at $1,000, by the conversion price - initially set at $0.12846. Mr. Donelan disclaims beneficial ownership of the shares reflected above, except to the extent of his direct pecuniary interest in Redwood Holdings, LLC.
(5)	On September 23, 2004, in conjunction with a credit agreement, Remington Capital, LLC received a warrant to purchase 250,000 shares of Common Stock of Synbiotics Corporation with an exercise price of $0.17 per share. The warrant is exercisable at any time, in whole or in part, through September 1, 2010. Remington Capital, LLC is indirectly owned 100% by Redwood Holdings, LLC. Mr. Donelan is a 24.9% owner of Redwood Holdings, LLC. Mr. Donelan disclaims beneficial ownership of the shares reflected above, except to the extent of his direct pecuniary interest in Redwood Holdings, LLC.
(6)	On October 29, 2005, Synbiotics Corporation effected a reverse stock split of its common stock in the ratio of 1-for-2,000. Any fractional share resulting from the reverse split was cashed out by Synbiotics Corporation in the amount of $0.13 for each pre-reverse-split share of common stock which became part of a fractional share. Mr. Donelan received $609.70 for 4,690 pre-reverse-split shares of common stock which became part of a fractional share. On October 30, 2005, Synbiotics Corporation effected a forward stock split of its common stock in the ratio of 2,000-for-1.
(7)	On October 29, 2005, Synbiotics Corporation effected a reverse stock split of its common stock in the ratio of 1-for-2,000. Any fractional share resulting from the reverse split was cashed out by Synbiotics Corporation in the amount of $0.13 for each pre-reverse-split share of common stock which became part of a fractional share. Redwood Holdings, LLC received $322.79 for 2,483 pre-reverse-split shares of common stock which became part of a fractional share. On October 30, 2005, Synbiotics Corporation effected a forward stock split of its common stock in the ratio of 2,000-for-1.
(8)	On October 29, 2005, Synbiotics Corporation effected a reverse stock split of its common stock in the ratio of 1-for-2,000. Any fractional share resulting from the reverse split was cashed out by Synbiotics Corporation in the amount of $0.13 for each pre-reverse-split share of common stock which became part of a fractional share. Redwood West Coast, LLC received $247.91 for 1,907 pre-reverse-split shares of common stock which became part of a fractional share. On October 30, 2005, Synbiotics Corporation effected a forward stock split of its common stock in the ratio of 2,000-for-1.

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