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ARS Home Midwest Area St. Paul, Minnesota Plant Science Research Research





- Samac, Deborah - Debby
- Soil and Air (212)
- Grass, Forage, and Rangeland Agroecosystems (215)
- Plant Genetic Resources, Genomics and Genetic Improvement (301)

Research Project: **Location:
                            Plant Science Research** Project Number: 5062-21500-001-005-A
                        
                        Project Type: Cooperative Agreement Start Date: May 1, 2020
                        
                        End Date: Jul 31, 2024 **Objective:**
                        
                        Objective 1: Evaluate the potential of alfalfa protein concentrate (APC) as an ingredient in feed production for rainbow trout.
Objective 2: Evaluate the effect of alfalfa protein concentrate with plant defensin and phytase for improving fish performance and water quality. **Approach:**
                        
                        For objective 1, four levels of  commercially-available alfalfa protein concentrate (APC) will be used in formulating pelleted feed for rainbow trout. Feeding studies will be done to determine palatability, digestibility, feed-intake, feed conversion, growth, and proximate composition. Pellet physical properties including water stability, durability, bulk density, and oil absorption will be measured. For objective 2, defensin and phytase protein will be incorporated into feed. Feeding studies will be done for 60 days to measure growth performance, feed conversion ratio, nutrient retention, water quality, nutrient digestibility, and nutritional composition of fish.


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