EXHIBIT 21

SUBSIDIARIES OF THE REGISTRANT

NEOGEN CORPORATION AND SUBSIDIARIES

May 31, 2013

	WHERE INCORPORATED	PERCENTAGE OWNED BY NEOGEN CORPORATION
Acumedia Manufacturers, Inc.	Michigan	100%
Centrus Acquisition, Inc.	Michigan	100%
Centrus International, Inc.	Delaware	100%
GeneSeek, Inc.	Nebraska	100%
Hacco, Inc.	Michigan	100%
Hess & Clark, Inc.	Michigan	100%
International Diagnostic Systems Corp.	Michigan	100%
Igenity, Inc.	Michigan	100%
Macleod Pharmaceuticals, Inc.	Michigan	100%
Neogen do Brasil Produtos Para Labratorios LTDA.	Sao Paulo, Brazil	92%
Neogen Europe Limited	Scotland, United Kingdom	100%
Neogen Latinoamerica S.A.P.I. DE C.V.	Mexico City, Mexico	60%
Neogen Properties, LLC	Michigan	100%
Neogen Properties, LLC II	Michigan	100%
Neogen Properties, LLC III	Michigan	100%
Neogen Properties, LLC IV	Michigan	100%
Neogen Properties, LLC V	Michigan	100%
Neogen Properties, LLC VI	Michigan	100%

All of the subsidiaries listed above are included in the consolidated financial statements of Neogen Corporation.