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United States Department of Agriculture

Agricultural Research Service

Research Project: EVALUATION OF THREE TYPES OF CORN PROTEIN CONCENTRATES FOR FUNCTIONALITY DURING EXTRUSION AND DIGESTIBILITY IN RAINBOW TROUT Project Number: 5366-21310-004-10
Project Type: Trust

Start Date: Dec 01, 2010
End Date: Dec 01, 2011

Objective:
1) Determine if corn protein concentrate contributes to pellet binding strength when extruded. 2) Determine the nutrient digestibility of three type of corn protein concentrate using extruded feeds with rainbow trout.

Approach:
Each of three variants of corn protein concentrate, standard, high lysine and low pigment, will be tested for nutrient digestibility using standard laboratory practices. The effect of each variant on feed consumption will also be determined. The effect of each variant on the pellet strength will also be determined through a series of experimental extrusion runs. The corn protein concentrate variants will be added at different levels to the diets, substituting for ingredient with high binding capacity (i.e. wheat gluten, wheat flour) or low binding capacity (soy protein concentrate). All pellets will be tested for oil absorption capacity and durability. Documents Trust with Cargill. Log 43863.

Last Modified: 11/23/2014
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