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Title: EFFECT OF DIETS CONAINING VARIOUS LEVELS OF PROTEIN AND ETHANOL COPRODUCTS FROM CORN ON GROWTH OF TILAPIA FRY

Author
item Wu, Ying Victor
item ROSATI, RONALD - ILL STATE UNIVERSITY
item BROWN, PAUL - PURDUE UNIVERSITY

Submitted to: Journal of Agricultural and Food Chemistry
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 6/6/1996
Publication Date: N/A
Citation: N/A

Interpretive Summary: Corn gluten meal, corn gluten feed, and corn distillers' grains with solubles are protein-rich coproducts of alcohol from corn. An increasing amount of these coproducts is produced as the demand for fuel alcohol increases. A possible new use for these coproducts is to incorporate into fish feed. Fish feeds containing up to half of alcohol coproducts at various protein levels were fed to tilapia, a warmwater fish. Good weight gain, feed conversion ratio (weight of feed/wet weight gain) and protein efficiency ratio (weight gain/protein fed) were obtained. Increased use of these coproducts will benefit the corn farmer as well as the alcohol producer.

Technical Abstract: Experimental diets containing 32-40% protein and 16-49% of corn gluten meal, corn gluten feed, or corn distillers' grains with solubles were fed to tilapia with 0.4 g initial weight for 8 weeks in aquaria. Weight gain, feed conversion ratio, and protein efficiency ratio for experimental and control diets ranged from 3270-5320%, 1.06-1.38, and 1.87-2.37, respectively. Statistically, the highest weight gain was achieved from control diet and a 40% protein diet with 35% corn distillers' grains with solubles; the best feed conversion ratio was obtained from control diet and two 40% protein diets with 35% corn distillers' grains with solubles or 30% of corn gluten feed; and the highest protein efficiency ratio was from control diet and two 36% protein diets with 49% corn distillers' grains with solubles or 42% corn gluten feed.