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NO. 951 5

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Connecticut P

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Agricultural e

Analysis of

Experiment 5

Agricultural Feeds

Station, 2

and Pet Foods
1997

A^ew Haven ^

BY MARY JANE INCORVIA MATTINA

Bulletin 951
July 1998

From January 1, 1997 to December 31, 1997 the Department of
Analytical Chemistry analyzed eighty-six samples of feeding stuffs from
twelve different manufacturers. The products were analyzed to determine
that the label guarantees are in compliance with State of Connecticut
regulations. Included in the survey are products intended for commercial
agricultural operations as well as products intended for household pets. The
samples were collected by Alton VanDyke and John Schneider of the
Connecticut Department of Agriculture. The analyses were performed by
Craig Musante and Mamie Pyles under the supervision of Dr. David
Stilwell.

In the Table are listed the label guarantee for the macronutrients in the
product, the results of the proximate analysis for each sample, and results of
the analyses for micronutrients. Values are given in percent unless
otherwise noted. A deficiency in a guaranteed ingredient is indicated by a
minus (-) sign next to the parameter. An excess of a substance is indicated
by a plus (+) sign next to the value. A product is found to be
"unsatisfactory" if the found value of a parameter is outside of the value
calculated from the label guarantee using the percent analytical variation
guidelines recommended by the Association of the American Feed Control
Officials. Of the eighty-six samples analyzed, fifteen were found to be
deficient in one or more macronutrients (17.4%) and ten were unsatisfactory
in one or more micronutrients (1 1.6%).

The Connecticut Agricultural Experiment Station is an Equal Opportunity,
Affirmative Action Employer. Persons with disabilities who require
alternate means of communication of program information should contact
the Station Editor at (203) 974-8446 (voice) or 974-8502 (FAX) or
paul.gough@po. state. ct.us (e-mail).

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)l The Connecticut Agricultural Experiment Station,

founded in 1875, is the first experiment Station in America. It is chartered
by the General Assembly to make scientific inquiries and experiments
regarding plants and their pests, insects, soil and water, and to perform analyses for State
agencies. The laboratories of the Station are in New Haven and Windsor; its Lockwood
Farm is in Hamden. Single copies of bulletins are available free upon request to Pub-
lications; Box 1106; New Haven, CT 06504- 1 1 06 ISSN 0097-0905