2020
Applicability of microbial phytase to increase phosphorus availability in soy protein-based diets for largemouth bass (Micropterus salmoides):
Contributor/Checkoff:
Category:
Export/Trade
Keywords:
Aquaculture
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
Waldemar Rossi, Kentucky State University
Co-Principal Investigators:
Project Code:
Contributing Organization (Checkoff):
Institution Funded:
Brief Project Summary:

Phosphorus (P) in an essential nutrient for animals and is vital for a variety of metabolic processes including genetic coding, energy transformations, and permeability of cellular membranes. Consequently, a dietary deficiency of P can result in detrimental effects on fish growth and immunocompetence, ultimately affecting the health and survival of farmed fish. On the other hand, feeds containing excess P will support increased excretion of this element to receiving waters, contributing to eutrophication processes and reducing the carrying capacity of aquaculture production systems.

Concerns over P concentration and availability in feeds for aquatic animals have increased in recent years...

Unique Keywords:
#aquaculture
Information And Results
Project Deliverables

The following outcomes are expected following the conclusion of this project:
i) to supply relevant information to feed companies, producers, nutritionists and industry stakeholders about the applicability of PTS to increase PA-P availability in LMB feed formulations containing high levels of soy-protein ingredients (SBM and SPC);
ii) by increasing P availability through the use of supplemental PTS, reduce or eliminate the need for inorganic P supplementation in soy-based diets for LMB;
iii) by optimizing dietary P availability through the use of supplemental PTS and reducing inorganic P supplementation, minimize the environmental impact(s) (e.g., eutrophication processes) of soy-based feeds LMB farming operations; and
iv) to increase the “pros” regarding soy inclusion in aquaculture feeds.

Final Project Results

Updated April 13, 2021:

View uploaded report 2 PDF file

View uploaded report 3 PDF file

See attached laymen's report for full details.

The United Soybean Research Retention policy will display final reports with the project once completed but working files will be purged after three years. And financial information after seven years. All pertinent information is in the final report or if you want more information, please contact the project lead at your state soybean organization or principal investigator listed on the project.