Theses and Dissertations
Advisor
Wamsley, Kelley
Committee Member
Adhikari, Pratima
Committee Member
Cantley, Staci
Date of Degree
8-7-2025
Original embargo terms
Embargo 1 year
Document Type
Graduate Thesis - Open Access
Major
Agriculture (Poultry Science)
Degree Name
Master of Science (M.S.)
College
College of Agriculture and Life Sciences
Department
Department of Poultry Science
Abstract
Poultry producers must continually evaluate nutritional strategies to enhance broiler performance and sustainability. Chapter II assessed sodium bisulfate (SB) applied to litter, feed, and water across a 42-day grow-out. Applying SB to litter reduced pH, while 0.3% and 0.4% dietary SB improved feed conversion ratio (FCR). Water acidification with SB during the final week did not impair performance, supporting its use as a preharvest intervention. Chapter III evaluated phytase at 500, 1500, and 2000 FTU/kg, with or without protease, in reduced amino acid diets over 56 days. Birds fed a nutrient-adequate diet with 1500 FTU/kg phytase outperformed all reduced-amino acid groups, with no added benefit from higher phytase levels or protease inclusion. These findings support targeted use of functional additives like SB and phytase to improve broiler performance, nutrient utilization, and environmental quality.
Recommended Citation
Karn, Spencer Thomas, "Strategic use of exogenous feed enzymes and sodium bisulfate to optimize broiler production" (2025). Theses and Dissertations. 6654.
https://scholarsjunction.msstate.edu/td/6654
