1a.Objectives (from AD-416):
Objectives of this research are to develop improved diet formulations and rainbow trout stocks that meet the economic and growth requirements of commercial aquaculturists by: formulating and testing sustainable plant-based diets and evaluating selected rainbow trout families.
1b.Approach (from AD-416):
This research performed under institutional biosafety policies will benefit commercial aquaculturists, by improving formulations for commercial diets by testing the plant-based sustainable diets in a commercial setting. Rainbow trout selected for growth on these diets will also be evaluated for production traits in a commercial setting and tested for incorporation into the facilities broodstock.
Commercial evaluation of alternative protein diets and selected rainbow trout stocks. Feed costs represent the majority of production expenses for aquaculture producers, making it necessary to identify ways to reduce the current reliance on fishmeal based feeds. ARS researchers in Hagerman, Idaho, in cooperation with Clear Springs Foods, Inc have been testing the ARS strain of rainbow trout that grows faster and more efficiently on a fishmeal feed and newly developed sustainable based feeds. This collaboration links to the parent project through Objectives 3 and 6 and has enhanced our ability to translate laboratory results to a production setting, helped improve both the fish and the diets originally developed by ARS, and resulted in the use by industry of ARS technology.